General Bearings LARGE SIZE BALL & ROLLER BEARINGS CAT. NO. B2002E-2

Transcription

1 LARGE SIZE ALL & ROLLER EARINGS Geneal eaings CAT. NO. 22E-2

2 1 2 Selection of beaing imensions 4 eaing toleances eaing fits 35 5 Lubication 56 7 Examples of failues 7 Intenal cleaance 47 6 eaing mateials 66 Technical ata NU 68, 69, 16, 62,63, S, 3 (NJ) 329, 32, 33, 331, 32, 322, 332, 33, 313, 323, inch seies, metic J seies C48(V), 49(V) SC (NUP) TR T (N) TI 78, 79, 7, 72, 73 AC 18, 28, 38, 19, 29, 1, 3, 31, 2, 22, 32, 3, 23, 33 (NF) R, RR RH, RHR RHA Othe poucts 466 Supplementay table 476 F 511, 512, 513, , 293, 294 SCP 2TR NN 238, 239, 23, 231, 241, 222, 232, 213, 223 T, THR HSC beaing unit C NNU PA 48, 39, 49, 3, 4, 31, 2AC 3 C5(NR) Shiele type 452, 453, 462, 463, 46T32, 45T, 45T, inch 46T322, 46T33, 2TR 2TR seies 46T323, 46T, inch seies 2TR, inch seies TIS (Fo axial suppot) TIT (Tapee boe) TO, TOS TNA 2THR FC, 3, 4CR 46T, inch seies Tapee boe Fo scew own spinle FC, 3 372, 472, 473, 47T, 45, 4TR, 4TR, inch seies TQO 45 Seale type THR Fo scew own spinle THR X 99, 99, T99 47TS, 4TRS, eaing specification tables eep goove ball Angula contact ball Cylinical olle Full complement cylinical olle beaings fo cane sheaves Tapee olle Spheical olle Thust ball beaings beaings beaings beaings beaings beaings Tapee olle thust beaings Spheical thust olle beaings eaings fo continuous casting machines Cylinical olle beaings fo the backing shafts of multi-oll mills Slewing im beaings fo tunnel-boing machine Othe poucts Supplementay table

3 LARGE SIZE ALL & ROLLER EARINGS CAT. NO. 22E-2

4 Technical ata Publication of LARGE SIZE ALL & ROLLER EARINGS We ae please to offe you this newly issue Koyo lage size olling beaing catalogue. 1 Selection of beaing imensions Lubication eaing toleances eaing mateials eaing fits Examples of failues Intenal cleaance The conventional lage size olling beaing catalogue has been thooughly evise. This catalogue inclues infomation such as the latest beaing types, beaing numbes, an technical ata. We ae confient that this catalogue will help evey people engage in esign an maintenance of machiney. This catalogue also shows beaings intene fo special puposes. If you have any inquiy fo selection of beaings, please contact JTEKT. We ae gateful fo you patonage an look fowa to continuing to seve you in the futue. eaing specification tables ( eep goove ball beaings Single-ow... 9 ( Angula contact ball beaings... 1 Single-ow an Matche pai ouble-ow ( Cylinical olle beaings Single-ow ouble-ow Fou-ow Fou-ow (Tapee boe) ( Wie seies cylinical olle beaings ( Full complement cylinical olle beaings fo cane sheaves ouble-ow, open type ouble-ow, shiele type ( Tapee olle beaings Single-ow ouble-ow (Face to face TI type) ouble-ow (Face to face, Fo axial suppot TIS type) ouble-ow (Face to face, Tapee boe TIT type) ouble-ow (ack to back TO, TOS type) ouble-ow (ack to back TNA type) Fou-ow (TQO type) Fou-ow (45 type) Fou-ow (Seale type) ( Spheical olle beaings ( Thust ball beaings... 4 Single-ow ( Tapee olle thust beaings Single-ow ouble-ow Single-ow (Scew own spinle THR...type) Single-ow (Scew own spinle THR...X type).. 42 ( Spheical thust olle beaings ( eaings fo continuous casting machines SC SCP beaings HSC beaing unit ( Cylinical olle beaings fo the backing shafts of multi-oll mills ( Slewing im beaings fo tunnel-boing machine Tipel-ow combine olle type (TR T type) Tipel-ow combine olle type (SP/TR T type) ouble-ow tapee olle type (2TR type) The contents of this catalog ae subject to change without pio notice. Evey possible effot has been mae to ensue that the ata heein is coect; howeve, JTEKT cannot assume esponsibility fo any eos o omissions. Repouction of this catalog without witten consent is stictly pohibite This publication was mae using ecycle pape fo the potection of foests. Othe poucts *Spheical olle beaing fo win tubine geneato main shaft *ack-up oll units fo hot levele *ack-up oll units fo tension levele *Lae beaing fo convete *Tunnion split beaing fo convete *Seale beaing fo sintee equipment *Spheical olle beaings fo shake sceens *Regining jigs fo beaings fo backing shafts *Oil / ai lubicato fo steel making an olling equipment Supplementay table *SI units an convesion factos *Inch/millimete convesion *Steel haness convesion *Viscosity convesion *Shaft toleances (eviation fom nominal imensions) *Housing boe toleances (eviation fom nominal imensions)

5 1. Selection of beaing imensions 1-1 eaing sevice life When beaings otate une loa, mateial flakes fom the sufaces of inne an oute ings o olling elements by fatigue aising fom epeate contact stess. This phenomenon is calle flaking. The total numbe of beaing otations until flaking occus is egae as the beaing "(fatigue) sevice life". "(Fatigue) sevice life" iffes geatly epening upon beaing stuctues, imensions, mateials, an pocessing methos. Since this phenomenon esults fom fatigue istibution in beaing mateials themselves, iffeences in beaing sevice life shoul be statistically consiee. When a goup of ientical beaings ae otate une the same conitions, the total numbe of evolutions until 9 % of the beaings ae left without flaking (i.e. a sevice life of 9 % eliability) is efine as the basic ating life. In opeation at a constant spee, the basic ating life can be expesse in tems of time. In actual opeation, a beaing fails not only because of fatigue, but othe factos as well, such as wea, seizue, ceep, fetting, binelling, cacking etc. These beaing failues can be minimize by selecting the pope mounting metho an lubicant, as well as the beaing most suitable fo the application. 1-2 Calculation of sevice life asic ynamic loa ating The basic ynamic loa ating (C) is eithe pue aial (fo aial beaings) o cental axial loa (fo thust beaings) of constant magnitue in a constant iection, une which the basic ating life of 1 million evolutions can be obtaine, when the inne ing otates while the oute ing is stationay, o vice vesa. The basic ynamic loa ating, which epesents the capacity of a beaing une olling fatigue, is specifie as the basic ynamic aial loa ating (C ) fo aial beaings, an basic ynamic axial loa ating (C a) fo thust beaings. These loa atings ae liste in the specification table. These values ae pescibe by ISO 281/ 199, an ae subject to change by confomance to the latest ISO stanas asic ating life The basic ating life in elation to the basic ynamic loa ating an ynamic equivalent loa can be expesse using equation (1-1). It is convenient to expess the basic ating life in tems of time, using equation (1-2), when a beaing is use fo opeation at a constant spee. Total evolutions (Time) L 1 = L 1h = C P 1 6 6n p (1-1) C P p (1-2) whee : L 1 : basic ating life 1 6 evolutions L 1h : basic ating life h P : ynamic equivalent loa N (efe to page 12) C : basic ynamic loa ating N n : otational spee min 1 p : fo ball beaings p = 3 fo olle beaings p = 1/3 Accoingly, whee the ynamic equivalent loa is P, an otational spee is n, equation (1-3) can be use to calculate the basic ynamic loa ating C; the beaing size most suitable fo a specifie pupose can then be selecte, efeing to the beaing specification table. C = P [all beaing] f n Rotational spee asic ating life n f h [Rolle beaing] f n Rotational spee asic ating life L 1h 6n 1 6 1/p (1-3) [Refeence] The equations using a sevice life coefficient ( f h) an otational spee coefficient ( f n) espectively, base on equation (1-2), ae as follows : L 1h = 5 f h p (1-4) Coefficient of sevice life : C f h = f n (1-5) P Coefficient of otational spee : 1 6 1/p f n = 5 6n 1/p = (.3n) (1-6) Fo efeence, the values of f n, f h, an L 1h can be easily obtaine by employing the nomogaph attache to this catalog, as an abbeviate metho L 1h n f h L 1h [Refeence] Rotational spee (n) an its coefficients ( fn), an sevice life coefficient ( f h) an basic ating life (L 1h) 4 5

6 1. Selection of beaing imensions Coection of basic ynamic loa ating fo high tempeatue use an imension stabilizing teatment In high tempeatue opeation, beaing mateial haness eteioates, as mateial compositions ae altee. As a esult, the basic ynamic loa ating is iminishe. Once altee, mateial composition is not ecovee, even if opeating tempeatues etun to nomal. Theefoe, fo beaings use in high tempeatue opeation, the basic ynamic loa ating shoul be coecte by multiplying the basic ynamic loa ating values specifie in the beaing specification table by the tempeatue coefficient values in Table 1-1. Table 1-1 Tempeatue coefficient values eaing tempeatue, C Tempeatue coefficient Since nomal heat teatment is not effective in maintaining the oiginal beaing size in extene opeation at 12 C o highe, imension stabilizing teatment is necessay. imension stabilizing teatment coes an thei effective tempeatue anges ae escibe in Table 1-2. Since imension stabilizing teatment iminishes mateial haness, the basic ynamic loa ating may be euce fo some types of beaings. Table 1-2 imension stabilizing teatment imension stabilizing teatment coe S S1 S2 Effective tempeatue ange Ove 1 C, up to 15 C 15 C 2 C 2 C 25 C Moifie ating life Lnm The life of olling beaings was stanaize as a basic ating life in the 196s, but in actual applications, sometimes the actual life an the basic ating life have been quite iffeent ue to the lubication status an the influence of the usage envionment. To make the calculate life close to the actual life, a coecte ating life has been consiee since the 198s. In this coecte ating life, beaing chaacteistic facto a 2 (a coection facto fo the case in which the chaacteistics elate to the life ae change ue to the beaing mateials, manufactuing pocess, an esign) an usage conition facto a 3 (a coection facto that takes into account usage conitions that have a iect influence on the beaing life, such as the lubication) o facto a 23 fome fom the inteepenence of these two factos, ae consiee with the basic ating life. These factos wee hanle iffeently by each beaing manufactue, but they have been stanaize as a moifie ating life in ISO 281 in 27. In 213, JIS 1518 (ynamic loa atings an ating life) was amene to confom to the ISO. The basic ating life (L 1) shown in equation (1-1) is the (fatigue) life with a epenability of 9 % une nomal usage conitions fo olling beaings that have stana factos such as intenal esign, mateials, an manufactuing quality. JIS 1518:213 specifies a calculation metho base on ISO 281:27. To calculate accuate beaing life une a vaiety of opeating conitions, it is necessay to consie elements such as the effect of changes in factos that can be anticipate when using iffeent eliabilities an system appoaches, an inteactions between factos. Theefoe, the specifie calculation metho consies aitional stess ue to the lubication status, lubicant contamination, an fatigue loa limit C u (efe to p. 9) on the insie of the beaing. The life that uses this life moification facto a ISO, which consies the above factos, is calle moifie ating life L nm an is calculate with the following equation (1-7). L nm = a 1 a ISO L 1 (1-7) In this equation, L nm : Moifie ating life 1 6 otations This ating life has been moifie fo one of o a combination of the following: eliability of 9 % o highe, fatigue loa limit, special beaing chaacteistics, lubication contamination, an special opeating conitions. L 1 : asic ating life 1 6 otations (eliability: 9 %) a 1 : Life moification facto fo eliability efe to section (1) a ISO : Life moification facto efe to section (2) [Remak] When beaing imensions ae to be selecte given L nm geate than 9 % in eliability, the stength of shaft an housing must be consiee. (1) Life moification facto fo eliability a 1 The tem "eliability" is efine as "fo a goup of appaently ientical olling beaings, opeating une the same conitions, the pecentage of the goup that is expecte to attain o excee a specifie life" in ISO 281:27. Values of a 1 use to calculate a moifie ating life with a eliability of 9 % o highe (a failue pobability of 1 % o less) ae shown in Table 1-3. Table 1-3 Life moification facto fo eliability a1 Reliability, % Lnm a1 (2) Life moification facto aiso a) System appoach The vaious influences on beaing life ae epenent on each othe. The system appoach of calculating the moifie life has been evaluate as a pactical metho fo etemining life moification facto a ISO (ef. Fig. 1-1). Life moification facto a ISO is calculate with the following equation (Fig. 1-8). A iagam is available fo each beaing type (aial ball beaings, aial olle beaings, thust ball beaings, an thust olle beaings). (Each iagam (Figs. 1-2 to 1-5) is a citation fom JIS 1518:213.) Note that in pactical use, this is set so that life moification facto a ISO 5. Fig. 1-1 System appoach 6 (Citation fom JIS 1518:213) L 1m L 5m L 4m L 3m L 2m L 1m L.8m L.6m L.4m L.2m L.1m L.8m L.6m L.5m Type a ISO = f e c C u P eaing numbe (beaing imensions) C, C eaing Fatigue loa limit C u, κ (1-8) Application otational spee, loa, sealing pefomance usage tempeatue, kinematic viscosity of lubicating oil lubicating metho, contamination paticles κ Viscosity atio Life moification facto a ISO Contamination facto e c

7 1. Selection of beaing imensions aiso κ = aiso eccu/p Fig. 1-2 Life moification facto a ISO (Raial ball beaings) κ = eccu/p Fig. 1-4 Life moification facto a ISO (Thust ball beaings) aiso κ = aiso eccu/p Fig. 1-3 Life moification facto a ISO (Raial olle beaings) κ = eccu/p (Figs. 1-2 to 1-5 Citation fom JIS 1518:213) Fig. 1-5 Life moification facto a ISO (Thust olle beaings).2.15 b) Fatigue loa limit Cu Fo egulate steel mateials o alloy steel that has equivalent quality, the fatigue life is unlimite so long as the loa conition oes not excee a cetain value an so long as the lubication conitions, lubication cleanliness class, an othe opeating conitions ae favoable. Fo geneal high-quality mateials an beaings with high manufactuing quality, the fatigue stess limit is eache at a contact stess of appoximately 1.5 GPa between the aceway an olling elements. If one o both of the mateial quality an manufactuing quality ae low, the fatigue stess limit will also be low. The tem fatigue loa limit C u is efine as beaing loa une which the fatigue stess limit is just eache in the most heavily loae aceway contact in ISO 281:27. an is affecte by factos such as the beaing type, size, an mateial. Fo etails on the fatigue loa limits of special beaings an othe beaings not liste in this catalog, contact JTEKT. c) Contamination facto ec Table 1-4 Values of contamination facto e c If soli paticles in the contaminate lubicant ae caught between the aceway an the olling elements, inentations may fom on one o both of the aceway an the olling elements. These inentations will lea to localize inceases in stess, which will ecease the life. This ecease in life attibutable to the contamination of the lubicant can be calculate fom the contamination level as contamination facto e c. pw shown in this table is the pitch iamete of ball/olle set, which is expesse simply as pw = ( + )/2. (: Outsie iamete, : oe iamete) Fo infomation such as etails on special lubicating conitions o etaile investigations, contact JTEKT. ec Contamination level pw 1 mm pw 1 mm Extemely high cleanliness: The size of the paticles is appoximately equal to the thickness of the lubicant oil film, this is foun in laboatoy-level envionments. 1 1 High cleanliness: The oil has been filtee by an extemely fine filte, this is foun with stana gease-packe beaings an seale beaings..8 to.6.9 to.8 Stana cleanliness: The oil has been filtee by a fine filte, this is foun with stana gease-packe beaings an shiele beaings..6 to.5.8 to.6 Minimal contamination: The lubicant is slightly contaminate..5 to.3.6 to.4 Nomal contamination: This is foun when no seal is use an a coase filte is use in an envionment in which wea ebis an paticles fom the suouning.3 to.1.4 to.2 aea penetate into the lubicant. High contamination: This is foun when the suouning envionment is consieably contaminate an the beaing sealing is insufficient..1 to.1 to Extemely high contamination (Table 1-4 Citation fom JIS 1518:213) 8 9

8 1. Selection of beaing imensions ) Viscosity atio κ The lubicant foms an oil film on the olle contact suface, which sepaates the aceway an the olling elements. The status of the lubicant oil film is expesse by viscosity atio κ, the actual kinematic viscosity at the opeating tempeatue ν ivie by the efeence kinematic viscosity ν 1 as shown in the following equation. A κ geate than 4, equal to 4, o less than.1 is not applicable. Fo etails on lubicants such as gease an lubicants with exteme pessue aitives, contact JTEKT. 1-3 Calculation of loas Loas affecting beaings inclues foce exete by the weight of the object the beaings suppot, tansmission foce of evices such as geas an belts, loas geneate in equipment uing opeation etc. Selom can these kins of loa be etemine by simple calculation, because the loa is not always constant. In many cases, the loa fluctuates, an it is ifficult to etemine the fequency an magnitue of the fluctuation. Theefoe, loas ae nomally obtaine by multiplying theoetical values with vaious coefficients obtaine empiically Loa coefficient Even if aial an axial loas ae obtaine though geneal ynamic calculation, the actual loa becomes geate than the calculate value ue to vibation an impact uing opeation. In many cases, the loa is obtaine by multiplying theoetical values by the loa coefficient as shown below. F = f w F c (1-1) whee : F : actual loa N F c : calculate loa N f w : loa coefficient (efe to Table 1-5) κ = ν ν1 (1-9) Table 1-5 Loa coefficient f w ν ν 1 : Actual kinematic viscosity at the opeating tempeatue; the viscosity of the lubicant at the opeating tempeatue (efe to Fig. 5-3, page 65) : Refeence kinematic viscosity; etemine accoing to the spee an pitch iamete of ball/olle set pw of the beaing (ef. Fig. 1-6) ν 1, mm 2 /s n, min Opeating conition Opeation with little vibation o impact Nomal opeation (slight impact) Opeation with sevee vibation o impact Application example Motos Machine tools Measuing instument Railway olling stock Automobiles Pape manufactuing equipment Ai blowes Compessos Agicultual equipment Rolling mills Cushes Constuction equipment Shake sceens fw pw, mm (Fig. 1-6 Citation fom JIS 1518:213) Fig. 1-6 Refeence kinematic viscosity ν

9 1. Selection of beaing imensions 1-4 ynamic equivalent loa eaings ae use une vaious opeating conitions; howeve, in most cases, beaings eceive aial an axial loa combine, while the loa magnitue fluctuates uing opeation. Theefoe, it is impossible to iectly compae the actual loa an basic ynamic loa ating. The two ae compae by eplacing the loas applie to the shaft cente with one of a constant magnitue an in a specific iection, that yiels the same beaing sevice life as une actual loa an otational spee. This theoetical loa is efee to as the ynamic equivalent loa (P) Calculation of ynamic equivalent loa ynamic equivalent loas fo aial beaings an thust beaings (α 9 ) which eceive a combine loa of a constant magnitue in a specific iection can be calculate using the following equation. P = XF + YF a (1-11) whee : P : ynamic equivalent loa N fo aial beaings, P : ynamic equivalent aial loa fo thust beaings, P a : ynamic equivalent axial loa F : aial loa N F a : axial loa N X : aial loa facto Y : axial loa facto values of X an Y ae liste in the beaing specification table. When F a /F e fo single-ow aial beaings, it is taken that X = 1, an Y =. Hence, the ynamic equivalent loa ating is P = F. Values of e, which esignates the limit of F a /F, ae liste in the beaing specification table. Fo single-ow angula contact ball beaings an tapee olle beaings, axial component foces (F ac) ae geneate as shown in Fig. 1-7, theefoe a pai of beaings is aange face-to-face o back-to-back. The axial component foce can be calculate using the following equation. F F ac = (1-12) 2 Y Table 1-6 escibes the calculation of the ynamic equivalent loa when aial loas an extenal axial loas (K a) ae applie to beaings. Paie mounting ack-to-back aangement Face-to-face aangement A F A A A F A A F A F A K a K a K a K a F F F F F F F F K a K a K a K a F A A F A A A F A A F A F ac F 2Y F 2Y F 2Y α Fig. 1-7 Axial component foce + K a + K a < F F A 2Y A F A 2Y A F A 2Y A + K a F F > A + K 2Y a 2Y A Loa cente α F ac F Loa cente position is liste in the beaing specification table. Loa cente F 2Y + K a F A 2Y A K a F A 2Y A + K a F 2Y K a Fo thust ball beaings with contact angle α = 9, to which an axial loa is applie, P a = F a. The ynamic equivalent loa of spheical thust olle beaing can be calculate using the following equation. P a = F a F (1-13) whee : F / F a.55 Table 1-6 ynamic equivalent loa calculation : when a pai of single-ow angula contact ball beaings o tapee olle beaings is aange face-to-face o back-to-back. Loaing conition eaing Axial loa ynamic equivalent loa eaing A eaing eaing A eaing eaing A eaing eaing A eaing P A = XF A + Y A F 2Y + K a P A = F A, whee P A < F A P = F P A = F A P = XF + Y F A 2Y A K a P = F, whee P < F P A = F A P = XF + Y F A 2Y A + K a P = F, whee P < F P A = XF A + Y A F 2Y K a P A = F A, whee P A < F A P = F [Remaks] 1. These equations can be use when intenal cleaance an peloa uing opeation ae zeo. 2. Raial loa is teate as positive in the calculation, if it is applie in a iection opposite that shown in Fig. in Table 1-6.

10 1. Selection of beaing imensions Mean ynamic equivalent loa When loa magnitue o iection vaies, it is necessay to calculate the mean ynamic equivalent loa, which povies the same length P m = p P n 1t 1 Symbols fo Gaphs (1) to (4) of beaing sevice life as that une the actual loa fluctuation. The mean ynamic equivalent loa (P m) une iffeent loa fluctuations is escibe using Gaphs (1) to (4). (1) Stage fluctuation (2) Stageless fluctuation P 1 n 2t 2 P2 P m n nt n P 1 p n 1 t 1 + P 2 p n 2 t P n p n n t n n 1 t 1 + n 2 t n n t n P n (3) Fluctuation foming sine cuve P P m Σ n it i P max (1-14) (4) Fluctuation foming sine cuve (uppe half of sine cuve) P m : mean ynamic equivalent loa N P 1 : ynamic equivalent loa applie fo t 1 hous at otational spee n 1 N P 2 : ynamic equivalent loa applie fo t 2 hous at otational spee n 2 N... Pn : ynamic equivalent loa applie fo t n hous at otational spee n n N P min : minimum ynamic equivalent loa N P max : maximum ynamic equivalent loa N Σn it i : total otation in (t 1 to t i) hous p : fo ball beaings p = 3 fo olle beaings p = 1/3 [Refeence] Mean otational spee n m can be calculate using the following equation : P P min P m Σ n it i P m = P min + 2 P max 3 P P m Σ n it i P max (1-15) P m =.68 P max (1-16) P m =.75 P max (1-17) P max 1-5 asic static loa ating an static equivalent loa asic static loa ating Excessive static loa o impact loa even at vey low otation causes patial pemanent efomation of the olling element an aceway contacting sufaces. This pemanent efomation inceases with the loa; if it excees a cetain limit, smooth otation will be hinee. The basic static loa ating is the static loa which espons to the calculate contact stess shown below, at the contact cente between the aceway an olling elements which eceive the maximum loa. Self-aligning ball beaings 4 6 MPa Othe ball beaings 4 2 MPa Rolle beaings 4 MPa The total extent of contact stess-cause pemanent efomation on sufaces of olling elements an aceway will be appoximately. 1 times geate than the olling element iamete. The basic static loa ating fo aial beaings is specifie as the basic static aial loa ating, an fo thust beaings, as the basic static axial loa ating. These loa atings ae liste in the beaing specification table, using C an C a espectively. These values ae pescibe by ISO 78/1987 an ae subject to change by confomance to the latest ISO stanas Static equivalent loa The static equivalent loa is a theoetical loa calculate such that, uing otation at vey low spee o when beaings ae stationay, the same contact stess as that impose une actual loaing conition is geneate at the contact cente between aceway an olling element to which the maximum loa is applie. Fo aial beaings, aial loa passing though the beaing cente is use fo the calculation; fo thust beaings, axial loa in a iection along the beaing axis is use. The static equivalent loa can be calculate using the following equations. [Raial beaings] The geate value obtaine by the following two equations is use. P = X F + Y F a (1-18) P = F (1-19) [Thust beaings] ( α 9 ) ( α = 9 ) P a = X F + F a [When F a < X F, the solution becomes less accuate.] P a = F a (1-2) (1-21) whee : P : static equivalent aial loa N P a : static equivalent axial loa N F : aial loa N F a : axial loa N X : static aial loa facto Y : static axial loa facto (values of X an Y ae liste in the beaing specification table.) n m = n 1t 1 + n 2 t n n t n t 1 + t t n 14 15

11 1. Selection of beaing imensions Safety coefficient The allowable static equivalent loa fo a beaing is etemine by the basic static loa ating of the beaing; howeve, beaing sevice life, which is affecte by pemanent efomation, iffes in accoance with the pefomance equie of the beaing an opeating conitions. Theefoe, a safety coefficient is esignate, base on empiical ata, so as to ensue safety in elation to basic static loa ating. C f s = (1-22) P whee : f s : safety coefficient (ef. Table 1-7) C : basic static loa ating N P : static equivalent loa N Table 1-7 Values of safety coefficient f s Opeating conition With beaing otation Without beaing otation occasional oscillation When high unning accuacy is equie all beaing fs (min.) 2 3 Rolle beaing Nomal opeation When impact loa is applie Nomal opeation.5 1 When impact loa o uneven istibution loa is applie 1 2 [Remak] Fo spheical thust olle beaings, fs eaing toleances eaing toleances an pemissible values fo the bounay imensions an unning accuacy of beaings ae specifie. These values ae pescibe in JIS, ISO, AMA, etc. eaing toleances ae classifie into 6, 5, 4 etc., othe than oinay class. Class beaings offe aequate pefomance fo geneal applications, an beaings of class 5, 4, o highe ae equie fo machine tools. [Remaks] eaing type Table 2-1 Toleance class fo each beaing type Table 2-1 shows the toleance classes an JTEKT coes applie to the types of beaings shown in the imensional tables. eaing toleances of these beaings ae shown in Tables 2-2 though 2-8. Table 2-9 shows the allowable limite values of chamfe imensions, an Table 2-1 inclues the toleances fo tapee boe. Applie stanas of toleance class eep goove ball beaing JIS class JIS class 6 JIS class 5 (JIS class 4) Angula contact ball beaing JIS class JIS class 6 JIS class 5 (JIS class 4) Cylinical olle beaing JIS class JIS class 6 JIS class 5 (JIS class 4) Wie seies cylinical olle beaing Full complement cylinical olle beaing Tapee olle beaing Equivalent to class Equivalent to class 6 Equivalent to class Equivalent to class 6 Applie toleance table Table 2-2 Metic seies (single-ow) JIS class, 6X JIS class 6 JIS class 5 (JIS class 4) Table 2-3 Metic seies (ouble o fou-ow) AS class Table 2-4 Metic seies (J-seies) Class PK Class PN Class PC (Class P) Table 2-6 Inch seies AMA Class 4 AMA Class 2 AMA Class 3 (AMA Class ) Table 2-5 Spheical olle beaing JIS class Table 2-2 Thust ball beaing JIS class JIS class 6 (JIS class 5) Table 2-7 Metic seies tape olle Equivalent to class thust beaing Table 2-8 Spheical thust olle beaing JIS class 1. Poucts of toleance classes inclue in paentheses shown in the table above ae equie, contact JTEKT. 2. Thust tapee olle beaings fo scew own, cylinical olle beaings fo multistage olling mill back-up oll, an beaings fo tunneling machine ae manufactue with the special toleances appopiate fo thei opeating conitions

12 2. eaing toleances Table 2-2 (1) Raial beaing toleances (tapee olle beaings exclue) = JIS 1514 = (1) Inne ing (boe iamete) Unit : μm Single plane mean boe iamete eviation Single boe Nominal boe Single plane boe iamete vaiation V Mean boe iamete sp Nominal boe iamete vaiation iamete eviation iamete 3 mp 3 s 1) iamete seies 7, 8, 9 iamete seies, 1 iamete seies 2, 3, 4 V mp mm mm class class 6 class 5 class 4 class 4 class class 6 class 5 class 4 class class 6 class 5 class 4 class class 6 class 5 class 4 class class 6 class 5 class 4 ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max. ove up to Cylinical boe Tape o 3 Tapee boe (2) Inne ing (unning accuacy an with) Unit : μm Nominal boe Raial unout of assemble Single inne ing with eviation Matche pai inne ing with eviation Inne ing with vaiation Nominal boe iamete beaing inne ing 2) S S ia K ia 3 s 3 s 3) iamete V s mm class class 6 class 5 class 4 class 5 class 4 class 5 class 4 class class 6 class 5 class 4 class 4) class 6 4) class 5 4) class 4 class class 6 class 5 class 4 mm ove up to max. max. max. uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. ove up to S : Pepeniculaity of inne ing face with espect to the boe S ia : Axial unout of assemble beaing inne ing [Notes] 1) These shall be applie to beaings of iamete seies, 1, 2, 3 an 4. 4) Also applicable to the inne ing with tapee boe of 5 mm. [Remak] Values in Italics ae pescibe in JTEKT stanas. 2) These shall be applie to eep goove ball beaings an angula contact ball beaings. 3) These shall be appplie to iniviual beaing ings manufactue fo matche pai o stack beaings

13 2. eaing toleances Table 2-2 (2) Raial beaing toleances (tapee olle beaings exclue) (3) Oute ing (outsie iamete) Unit : µm Nominal Single plane mean outsie iamete eviation Single Mean outsie outsie Single plane outsie iamete vaiation Vsp Nominal outsie ia. Shiele/seale type iamete vaiation iamete outsie ia. 3 mp eviation iamete seies 3 s 1) iamete seies 7, 8, 9 iamete seies, 1 iamete seies 2, 3, 4 2, 3, 4, 1, 2, 3, 4 Vmp mm class class 6 class 5 class 4 class 4 5) class 2) class 6 2) class 5 5) class 4 5) Class 2) Class 6 2) Class 5 5) Class 4 5) Class 2) Class 6 2) Class 5 5) Class 4 5) Class 2) Class 6 2) Class 2) Class 6 2) Class 5 Class 4 mm ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max. max. ove up to Nominal outsie ia. Raial unout of assemble beaing oute ing S : Pepeniculaity of oute ing outsie suface with espect to the face S ea : Axial unout of assemble beaing oute ing 3 Cs : eviation of a single oute ing with (4) Oute ing (unning accuacy an with) Unit : µm 4) S 3) 4) S ea 3 Cs 3) vaiation Oute ing with Kea 3) V Cs mm class class 6 class 5 class 4 class 5 class 4 class 5 class 4 classes, 6, 5, 4 classes, 6 class 5 class 4 ove up to max. max. max. uppe lowe max Shall confom to the toleance Shall confom to the toleance V 3 s on of the s on 15 9 of same beaing the same beaing [Notes] 1) These shall be applie to beaings of iamete seies, 1, 2, 3 an 4. 2) Shall be applie when locating snap ing is not fitte. 3) These shall be applie to eep goove ball beaings an angula contact ball beaings. 4) These shall not be applie to flange beaings. 5) These shall not be applie to shiele beaings an seale beaings. [Remak] Values in Italics ae pescibe in JTEKT stanas. : nominal boe iamete : nominal outsie iamete : nominal assemble beaing with 2 21 Tape 12 1 o Cylinical boe 3 1 Tapee boe

14 2. eaing toleances Table 2-3 (1) Toleances fo metic seies tapee olle beaings = JIS 1514 = (1) Inne ing Unit : µm Nominal Single plane mean boe Single boe Single plane boe Mean boe iamete Raial unout of Single inne ing with eviation Nominal boe iamete eviation iamete iamete vaiation vaiation assemble boe S Sia iamete eviation beaing inne ing iamete 3 mp 3 s V sp V mp K ia 3 s mm classes, 6X classes 6, 5 class 4 class 4 classes, 6X class 6 class 5 class 4 classes, 6X class 6 class 5 class 4 classes, 6X class 6 class 5 class 4 class 5 class 4 class 4 class class 6X class 6 classes 5, 4 mm ove up to uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max. max. uppe lowe uppe lowe uppe lowe uppe lowe ove up to ) ) ) ) ) ) ) ) ) ) ) ) 12 1) ) 14 1) S : Pepeniculaity of inne ing face with espect to the boe, Sia : Axial unout of assemble beaing inne ing [Notes] 1) These shall be applie to beaing of toleance class. 2) These shall be applie to beaing of toleance class 6. 3) These shall be applie to beaing of toleance class 5. 4) These shall not be applie to flange beaings. (2-1) Oute ing Unit : µm (2-2) Oute ing Unit : µm Nominal Nominal Single plane mean outsie Single outsie Single plane outsie Mean outsie Raial unout of Nominal Single oute ing outsie iamete eviation iamete iamete vaiation iamete vaiation assemble S 4) Sea 4) outsie boe with eviation iamete eviation beaing oute ing iamete iamete 3 mp 3 s Vsp Vmp Kea 3 Cs mm classes, 6X classes 6, 5 class 4 class 4 classes, 6X class 6 class 5 class 4 classes, 6X class 6 class 5 class 4 classes, 6X class 6 class 5 class 4 class 5 class 4 class 4 mm mm class 6X 4) classes, 6, 5, 4 ove up to uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max. max. ove up to ove up to uppe lowe uppe lowe ) ) Shall ) comfom ) to the toleance ) s on ) of the same beaing ) ) ) S : Pepeniculaity of oute ing outsie suface with espect to the face S ea : Axial unout of assemble beaing oute ing [Remak] Values in Italics ae pescibe in JTEKT stanas T C : nominal boe iamete : nominal outsie iamete : nominal inne ing with C : nominal oute ing with T : nominal assemble beaing with

15 2. eaing toleances Table 2-3 (2) Toleances fo metic seies tapee olle beaings [Note] 1) These shall be applie to beaings of toleance class 5. [Remak] Values in Italics ae pescibe in JTEKT stanas. (3) Assemble beaing with an effective with Unit : µm Nominal boe Actual beaing with eviation Actual effective inne iamete sub-unit with eviation 3 Ts 3 T1s mm class class 6X class 6 classes 5, 4 class class 6X classes 5, 4 ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe ) ) ) ) ) ) ) Nominal boe iamete Actual effective oute ing with eviation 3 T2s mm class class 6X classes 5, 4 ove up to uppe lowe uppe lowe uppe lowe ) ) T T 1 T 2 Maste inne sub-unit Maste oute ing : nominal boe iamete T : nominal assemble beaing with T 1 : nominal effective with of inne sub-unit T 2 : nominal effective with of oute ing Table 2-4 Toleances fo metic seies ouble-ow an fou-ow tapee olle beaings (class ) = AS 12 = (1) Inne ing, oute ing with an oveall with Unit : µm Nominal boe iamete mm Single plane mean boe iamete eviation 3 mp Vsp : Single plane boe iamete vaiation, Vmp : Mean boe iamete vaiation Kia : Raial unout of assemble beaing inne ing (2) Oute ing Unit : µm Vsp : Single plane outsie iamete vaiation Vmp : Mean outsie iamete vaiation K ea : Raial unout of assemble beaing oute ing V sp V mp K ia o inne ing with eviation 3 s, 3 Cs Single oute ing Actual oveall inne ings / oute ings with eviation ouble-ow 3 Ts Fou-ow 3 Ts, 3 Ws ove up to uppe lowe max. max. max. uppe lowe uppe lowe uppe lowe Nominal outsie iamete mm Single plane mean outsie iamete eviation 3 mp V sp V mp K ea ove up to uppe lowe max. max. max C T, W T T W T C : nominal boe iamete : nominal outsie iamete : nominal ouble inne ing with : nominal ouble oute ing with : nominal oveall with of oute ings (inne ings)

16 2. eaing toleances Applie beaing type All types Applie beaing type All types Table 2-5 Toleances fo inch seies tapee olle beaings = AMA 19 = (1) Inne ing Unit : µm Nominal boe iamete eviation of a single boe iamete 3 s, mm (1/25.4) Class 4 Class 2 Class 3 Class ove up to uppe lowe uppe lowe uppe lowe uppe lowe 76.2 ( 3.) ( 3.) (1.5) (1.5) 34.8 (12.) (12.) 69.6 (24.) (24.) (36.) (36.) (48.) (48.) (2) Oute ing Unit : µm Nominal outsie iamete eviation of a single outsie iamete 3 s, mm (1/25.4) Class 4 Class 2 Class 3 Class ove up to uppe lowe uppe lowe uppe lowe uppe lowe (1.5) (1.5) 34.8 (12.) (12.) 69.6 (24.) (24.) (36.) (36.) (48.) (48.) Applie beaing type Nominal boe iamete, mm (1/25.4) (4) Assemble beaing with an oveall with Unit : µm Nominal outsie iamete, mm (1/25.4) eviation of the actual beaing with an oveall with of inne ings / oute ings 3 Ts, 3 Ws Class 4 Class 2 Class 3 Class ove up to ove up to uppe lowe uppe lowe uppe lowe uppe lowe 11.6 ( 4.) ( 4.) (1.5) Single-ow (1.5) 34.8 (12.) (12.) 69.6 (24.) 58. (2.) (12.) 69.6 (24.) 58. (2.) (24.) ouble-ow ouble-ow (TNA type) 11.6 ( 4.) ( 4.) (1.5) (1.5) 34.8 (12.) (12.) 69.6 (24.) 58. (2.) (12.) 69.6 (24.) 58. (2.) (24.) ( 5.) ( 5.) Fou-ow Total imensional ange Applie beaing type All types (3) Raial unout of assemble beaing inne ing / oute ing Unit : µm Nominal outsie iamete Raial unout of inne ing / oute ing Kia, Kea, mm (1/25.4) Class 4 Class 2 Class 3 Class ove up to max. max. max. max (1.5) (1.5) 34.8 (12.) (12.) 69.6 (24.) (24.) (36.) (36.) (48.) (48.) T T T T W : nominal boe iamete : nominal outsie iamete T, W : nominal assemble beaing with an nominal oveall with of oute ings (inne ings) 26 27

17 2. eaing toleances Nominal boe iamete mm Table 2-6 Toleances fo metic J seies tapee olle beaings 1) (1) oe iamete an with of inne ing an assemble beaing with Unit : µm eviation of a single boe iamete 3 s eviation of a single inne ing with 3 s eviation of the actual beaing with 3 Ts Class PK Class PN Class PC Class P Class PK Class PN Class PC Class P Class PK Class PN Class PC Class P ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe ove up to Nominal boe iamete mm T C (2) Outsie iamete an with of oute ing an aial unout of assemble beaing inne ing / oute ing Unit : µm Nominal outsie iamete mm eviation of a single outsie iamete 3 s [Note] 1) eaings with supplementay coe "J" attache at the font of beaing numbe. Ex. JHM72249/JHM7221, an the like eviation of a single oute ing with 3 Cs Raial unout of inne ing / oute ing Class PK Class PN Class PC Class P Class PK Class PN Class PC Class P Class PK Class PN Class PC Class P ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max. ove up to Kia, Kea Nominal outsie iamete mm : nominal boe iamete : nominal outsie iamete : nominal inne ing with C : nominal oute ing with T : nominal assemble beaing with 28 29

18 2. eaing toleances Nominal boe iamete mm Table 2-7 Toleances fo thust ball beaings = JIS 1514 = Single plane mean boe iamete eviation 3 mp [Note] 1) Applies only to thust ball beaings with 9 contact angle. [Remak] Values in Italics ae pescibe in JTEKT stanas. (1) Shaft washe Unit : µm Single plane boe iamete vaiation V sp Washe aceway to back face thickness vaiation S i 1) eviation of the actual beaing height 3 Ts classes, 6, 5 classes, 6, 5 class class 6 class 5 classes, 6, 5 ove up to uppe lowe max. max. uppe lowe Table 2-8 Accuacies of spheical thust olle beaings (class ) = JIS 1514 = (1) Shaft washe Unit : µm Nominal boe iamete Single plane mean boe Single plane boe Refe. iamete eviation iamete vaiation eviation of the actual S beaing height 3 mp V sp 3 Ts ove up to uppe lowe max. max. uppe lowe S : Pepeniculaity of inne ing face with espect to the boe [Remak] Values in Italics ae pescibe in JTEKT stanas. (2) Housing washe Unit : µm Nominal outsie iamete Single plane mean outsie iamete eviation Single plane outsie iamete vaiation Washe aceway to back face thickness vaiation 1) 2) mm 3 mp V sp S e classes, 6, 5 classes, 6, 5 classes, 6, 5 ove up to uppe lowe max. max Shall confom to the toleance S i on of the same beaing : shaft washe nominal boe iamete : housing washe nominal outsie iamete T : nominal beaing height (single iection) T (2) Housing washe Unit : µm Nominal outsie iamete Single plane mean outsie iamete eviation, mm 3 mp ove up to uppe lowe T : shaft washe nominal boe iamete : housing washe nominal outsie iamete T : nominal beaing height [Notes] 1) These shall be applie to washe with flat back face only. 2) Applies only to thust ball beaings with 9 contact angle. 3 31

19 2. eaing toleances Table 2-9 Pemissible values fo chamfe imensions = JIS 1514 = (1) Raial beaing (tapee olle beaings exclue) (2) Raial beaings with locating snap ing (snap ing goove sie) an cylinical olle beaings (sepaete Unit : mm thust colla an loose ib sie) Unit : mm min o 1 min Nominal boe iamete mm ove up to Raial iection max o 1 max Axial iection [Remaks] 1. Value of max o 1 max in the axial iection of beaings with nominal with lowe than 2 mm shall be the same as the value in aial iection. 2. Thee shall be no specification fo the accuacy of the shape of the chamfe suface, but its outline in the axial plane shall not be situate outsie of the imaginay cicle ac with a aius of min o 1 min which contacts the inne ing sie face an boe, o the oute ing sie face an outsie suface. 1 min [Remak] Thee shall be no specification fo the accuacy of the shape of the chamfe suface, but its outline in the axial plane shall not be situate outsie of the imaginay cicle ac with a aius of 1 min which contacts the inne ing sie face an boe, o the oute ing sie face an outsie suface. (3) Cylinical olle beaings (non-ib sie) an angula contact ball beaings (font face sie) Unit : mm 1 min [Remak] Nominal boe ia. o nominal outsie ia. o ove up to Nominal boe ia. o nominal outsie ia. o ove up to Raial iection Raial iection 1 max 1 max Axial iection Axial iection Thee shall be no specification fo the accuacy of the shape of the chamfe suface, but its outline in the axial plane shall not be situate outsie of the imaginay cicle ac with a aius of 1 min which contacts the inne ing sie face an boe, o the oute ing sie face an outsie suface. (4) Metic seies tapee olle beaing min o 1 min Nominal boe ia. o nominal outsie ia. o, mm ove up to Raial iection max o 1 max Unit : mm Axial iection [Note] 1) Inne ing shall be inclue in ivision, an oute ing, in ivision. [Remaks] 1. Thee shall be no specification fo the accuacy of the shape of the chamfe suface, but its outline in the axial plane shall not be situate outsie of the imaginay cicle ac with a aius of min o 1 min which contacts the inne ing back face an boe, o the oute ing back face an outsie suface. 2. Values in Italics ae povie in JTEKT stanas. (5) Thust beaing Unit : mm max o 1 max min o 1 min Raial an axial iection [Remak] Thee shall be no specification fo the accuacy of the shape of the chamfe suface, but its outline in the axial plane shall not be situate outsie of the imaginay cicle ac with a aius of min o 1 min which contacts with the shaft washe back face an boe, o the housing washe back face an outsie suface. oe o outsie suface min o 1 min A Axial iection Inne o oute ing sie face (aial beaing) Shaft o housing washe back face A A : min o 1 min : max o 1 max Raial iection

20 2. eaing toleances Table 2-1 Toleances fo tapee boes of aial beaings (class JIS 1514) 1 α ( + mp) ( 1 + 1mp) α 1mp mp 2 3. eaing fits 3-1 Pupose of fit The pupose of fit is to secuely fix the inne o oute ing to the shaft o housing, to peclue etimental cicumfeential sliing on the fitting suface. Such etimental sliing (efee to as "ceep") will cause abnomal heat geneation, wea of the fitting suface, infiltation of abasion metal paticles into the beaing, vibation, an many othe hamful effects, which cause a eteioation of beaing functions. Theefoe, it is necessay to fix the beaing ing which is otating une loa to the shaft o housing with intefeence. 3-2 Toleance an fit fo shaft & housing Fo metic seies beaings, toleances fo the shaft iamete an housing boe iamete ae stanaize in JIS 41 "limits an fits fo engineeing" (base on ISO 286 ; shown in Appenixes at the back of this catalog). eaing fits on the shaft an housing ae etemine base on the toleances specifie in the above stana. Fig. 3-1 shows the elationship between toleances fo shaft an housing boe iametes an fits fo beaings of class toleance. Theoetical tapee boe Tapee boe with single plane mean boe iamete eviation (1) asically tapee boe (tape 1:12) Unit : µm (2) asically tapee boe (tape 1:3) Unit : µm Nominal boe iamete, mm 3 mp 3 1mp 3 mp 1) V sp ove up to uppe lowe uppe lowe max [Note] 1) These shall be applie to all aial planes with tapee boe, not be applie to beaings of iamete seies 7, 8. [Remak] 1) Symbols of quantity 1 : efeence iamete at theoetical lage en of tapee boe = + o 1 = mp : single plane mean boe iamete eviation at theoetical small en of tapee boe 3 1mp : single plane mean boe iamete eviation at theoetical lage en of tapee boe Vsp : single plane boe iamete vaiation (a toleance fo the iamete vaiation given by a maximum value applying in any aial plane of the boe) : nominal inne ing with 1 α : of nominal tapee angle of tapee boe 2 (tapee atio 1/12) (tapee atio 1/3) α = α = = = = a = a Nominal boe iamete, mm 3 mp 3 1mp 3 mp 1) V sp ove up to uppe lowe uppe lowe max JIS beaing toleance class F 7 Cleaance fit f 6 G 6 G 7 H 6 H 7 H 8 JS6 JS7 K 6 K 7 Cleaance fit g 5 g 6 Tansition fit (Snug fit) h 5 h 6 h 7 js5 Tansition fit (Snug fit) k 5 k 6 M 6 M 7 m 5 m 6 Intefeence fit Intefeence fit Fig. 3-1 Relationship between toleances fo shaft/housing boe iametes an fits (beaings of class toleance) js6 N 7 n 6 P 7 p 6 mp Single plane mean outsie iamete eviation mp Single plane mean boe iamete eviation 34 35

21 3. eaing fits 3-3 Fit selection In selecting the pope fit, caeful consieation shoul be given to beaing opeating conitions. Majo specific consieations ae : *Loa chaacteistics an magnitue *Tempeatue istibution in opeating *eaing intenal cleaance *Suface finish, mateial an thickness of shaft an housing *Mounting an ismounting methos *Necessity to compensate fo shaft themal expansion at the fitting suface *eaing type an size Rotation patten Ineteminate Inne ing : otating Oute ing : stationay Inne ing : stationay Oute ing : otating Inne ing : stationay Oute ing : otating Inne ing : otating Oute ing : stationay In view of these consieations, the following paagaphs explain the etails of the impotant factos in fit selection. 1) Loa chaacteistics Table 3-1 Loa chaacteistics an fits iection of loa Stationay Rotating with oute ing Stationay Rotating with inne ing Rotating o stationay Loa chaacteistics ae classifie into thee types : otating inne ing loa; otating oute ing loa an ineteminate iection loa. Table 3-1 tabulates the elationship between these chaacteistics an fit. Loaing conitions Rotating inne ing loa Stationay oute ing loa Stationay inne ing loa Rotating oute ing loa Ineteminate iection loa Inne ing & shaft Intefeence fit necessay (k, m, n, p, ) Cleaance fit acceptable (f, g, h, js) Fit Oute ing & housing Cleaance fit acceptable (F, G, H, JS) Intefeence fit necessay (K, M, N, P) Typical application Spu gea boxes, motos Geatly unbalance wheels Running wheels & pulleys with stationay shaft Shake sceens (unbalance vibation) Intefeence fit Intefeence fit Canks 2) Effect of loa magnitue When a aial loa is applie, the inne ing will expan slightly. Since this expansion enlages the cicumfeence of the boe minutely, the initial intefeence is euce. The euction can be calculate by the following equations : [In the case of F.25 C ] F =.8 F 1 3 whee : 3 F : euction of inne ing intefeence mm : nominal boe iamete of beaing mm : nominal inne ing with mm F : aial loa N C : basic static loa ating N Consequently, when the aial loa, excees the C value by moe than 25 %, geate intefeence is neee. Much geate intefeence is neee, when impact loas ae expecte. 3) Effect of fitting suface oughness (3-1) [In the case of F >.25 C ] F F =.2 13 (3-2) The effective intefeence obtaine afte fitting iffes fom calculate intefeence ue to plastic efomation of the ing fitting suface. When the inne ing is fitte, the effective intefeence, subject to the effect of the fitting suface finish, can be appoximate by the following equations : [In the case of a goun shaft] eff (3-3) + 2 [In the case of a tune shaft] eff (3-4) + 3 whee : 3 eff : effective intefeence mm 3 : calculate intefeence mm : nominal boe iamete of beaing mm 4) Effect of tempeatue A beaing geneally has an opeating tempeatue, highe than the ambient tempeatue. When the inne ing opeates une loa, its tempeatue geneally becomes highe than that of the shaft an the effective intefeence eceases ue to the geate themal expansion of the inne ing. If the assume tempeatue iffeence between the beaing insie an suouning housing is 3 t, the tempeatue iffeence at the fitting sufaces of the inne ing an shaft will be appoximately (.1 to.15) 3 t. The euction of intefeence (3 t) ue to tempeatue iffeence is then expesse as follows : t = (.1 to.15) t α.1 5 t 1 3 (3-5) whee : 3 t : euction of intefeence ue to tempeatue iffeence mm 3 t : tempeatue iffeence between the insie of the beaing an the suouning housing C α : linea expansion coefficient of beaing steel ( ) 1/ C : nominal boe iamete of beaing mm Consequently, when a beaing is highe in tempeatue than the shaft, geate intefeence is equie. Howeve, a iffeence in tempeatue o in the coefficient of expansion may sometimes incease the intefeence between oute ing an housing. Theefoe, when cleaance is povie to accommoate shaft themal expansion, cae shoul be taken

22 3. eaing fits 5) Maximum stess ue to fit When a beaing is fitte with intefeence, the beaing ing will expan o contact, geneating intenal stess. Shoul this stess be excessive, the beaing ing may factue. The maximum beaing fitting-geneate stess is etemine by the equation in Table 3-2. In geneal, to avoi factue, it is best to ajust the maximum intefeence to less than 1/1 of the shaft iamete, o the maximum stess (σ), etemine by the equation in Table 3-2, shoul be less than 12 MPa. Shaft & inne ing (In the case of hollow shaft) E eff σ = 2 6) Othe consieations When a high egee of accuacy is equie, the toleance of the shaft an housing must be impove. Since the housing is geneally less easy to machine pecisely than the shaft, it is avisable to use a cleaance fit on the oute ing. With hollow shafts o thin section housings, geate than nomal intefeence is neee. With split housings, on the othe han, smalle intefeence with oute ing is neee. When the housing is mae of aluminum o othe light metal alloy, elatively geate than nomal intefeence is neee. In such a case, consult with JTEKT. Fits ecommene fo aial beaings an thust beaings ae shown in Tables 3-3 though 3-6. Fits fo olling mill oll neck beaings ae escibe in section 3-4. Table 3-2 Maximum fitting-geneate stess in beaings i i 2 (In the case of h ) Housing boe & oute ing eff σ = E (In the case of soli shaft) (In the case of h = ) E eff σ = eff σ = E 2 2 i whee : σ : maximum stess MPa : nominal boe iamete (shaft iamete) mm i : aceway contact iamete of inne ing mm ball beaing i.2 ( + 4 ) olle beaing i.25 ( + 3 ) eff : effective intefeence of inne ing mm h : boe iamete of hollow shaft mm E [Remak] The above equations ae applicable when the shaft an housing ae steel. When othe mateials ae use, JTEKT shoul be consulte h 1 e 2 2 h e : aceway contact iamete of oute ing mm ball beaing e.2 (4 + ) olle beaing e.25 (3 + ) : nominal outsie iamete (boe iamete of housing) mm eff : effective intefeence of oute ing mm : outsie iamete of housing mm : young's moulus MPa Rotating inne ing loa o ineteminate iection loa Stationay inne ing loa Table 3-3 (1) Recommene shaft fits fo aial beaings (classes, 6X, 6) Conitions 1) Light loa o fluctuating loa P.6 C Nomal loa P.6 <.12 C Heavy loa o impact loa P >.12 C Inne ing nees to move smoothly on shaft. Inne ing oes not nee to move smoothly on shaft. all beaing Cylinical olle beaing Tapee olle beaing Spheical olle beaing Shaft iamete ove up to ove up to ove up to Class of shaft toleance ange Cylinical boe beaing (classes, 6X, 6) Remaks Applications (fo efeence) [Notes] 1) Light, nomal, an heavy loas efe to those with ynamic equivalent aial loas (P) of 6 % o lowe, ove 6 % up to 12 % inclusive, an ove 12 % espectively in elation to the basic ynamic aial loa ating (C) of the beaing concene. 2) IT 5 an IT 7 mean that shaft ounness toleance, cylinicity toleance, an othe eos in tems of shape shoul be within the toleance ange of IT 5 an IT 7, espectively. Fo numeical values fo stana toleance gaes IT 5 an IT 7, efe to supplementay table at en of this catalog. [Remak] This table is applicable to soli steel shafts js 6 k 6 m 6 k 5 m 5 m 6 n 6 p n 6 p All shaft iametes g 6 All shaft iametes h 6 Fo applications equiing high accuacy, js 5,k 5 an m 5 shoul be use in place of js 6, k 6 an m 6. Fo single-ow tapee olle beaings an angula contact ball beaings, k 5 an m 5 may be eplace by k 6 an m 6, because intenal cleaance euction ue to fit nee not be consiee. eaings with lage intenal cleaance than stana ae equie. Fo applications equiing high accuacy, g 5 shoul be use. Fo lage size beaing, f 6 may be use fo easie movement. Fo applications equiing high accuacy, h 5 shoul be use. Cental axial loa only All shaft iametes js 6 Tapee boe beaing (class ) (with aapte o withawal sleeve) All loas All shaft iametes h 9 / IT 5 2) Fo tansmission shafts, h 1 / IT 7 2) may be applie. Electic appliances, machine tools, pumps, blowes, caies etc. Electic motos, tubines, intenal combustion engines, woowoking machines etc. Railway olling stock axle jounals, taction motos Stationay shaft wheels Tension pulleys, ope sheaves etc

23 3. eaing fits Table 3-3 (2) Recommene housing fits fo aial beaings (classes, 6X, 6) Conitions Housing Loa type etc. 1) axial isplacement Oute ing 2) One-piece o split type One-piece type Stationay oute ing loa Ineteminate iection loa Rotating oute ing loa All loa types Light o nomal loa High tempeatue at shaft an inne ing Light o nomal loa, equiing high unning accuacy Requiing low-noise otation Light o nomal loa Nomal o heavy loa High impact loa Light o fluctuating loa Nomal o heavy loa Thin section housing, heavy o high impact loa Easily isplaceable Not isplaceable in pinciple Class of housing boe toleance ange Remaks Applications (fo efeence) [Notes] 1) Loas ae classifie as state in Note 1) to Table 3-3 (1). 2) Inicating istinction between applications of non-sepaable beaings pemitting an not pemitting axial isplacement of the oute ings. [Remaks] 1. This table is applicable to cast ion o steel housings. 2. If only cental axial loa is applie to the beaing, select such toleance ange class as to povie cleaance in the aial iection fo oute ing. H 7 H 8 G 7 K 6 isplaceable JS 6 Easily isplaceable Nomally isplaceable Not isplaceable in pinciple Not isplaceable Not isplaceable H 6 JS 7 K 7 G 7 may be applie when a lage size beaing is use, o if the tempeatue iffeence is lage between the oute ing an housing. F 7 may be applie when a lage size beaing is use, o if the tempeatue iffeence is lage between the oute ing an housing. Mainly applie to olle beaings. Mainly applie to ball beaings. Fo applications equiing high accuacy, JS 6 an K 6 shoul be use in place of JS 7 an K 7. Oinay beaing evices, ailway olling stock axle boxes, powe tansmission equipment etc. ying cylines etc. Electic motos, pumps, cankshaft main beaings etc. M 7 Taction motos etc. M 7 N 7 P 7 Mainly applie to ball beaings. Mainly applie to olle beaings. Conveyo olles, opeways, tension pulleys etc. Wheel hubs with ball beaings etc. Wheel hubs with olle beaings, beaings fo lage en of connecting os etc. Table 3-4 Recommene shaft an housing fits fo inch seies tapee olle beaings (classes 4, 2) (1) Fits fo shaft Rotating inne ing loa Rotating oute ing loa Rotating inne ing loa Rotating oute ing loa Loa type Nomal loa Heavy loa Impact loa High spee otation Nomal loa without impact Nomal loa without impact Heavy loa Impact loa High spee otation Loa type Use fo fee o fixe sie. Position of oute ing is ajustable (in axial iection). Position of oute ing is not ajustable (in axial iection). Position of oute ing is not ajustable (in axial iection). Nominal boe iamete mm (1/25.4) eviation of a single boe iamete 3 s, μm (2) Fits fo housing imensional toleance of shaft iamete μm ove up to uppe lowe uppe lowe 76.2 ( 3.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 34.8 (12.) 69.6 (24.) 34.8 (12.) 69.6 (24.) (36.) 34.8 (12.) 69.6 (24.) (36.) 34.8 (12.) 69.6 (24.) (36.) 34.8 (12.) 69.6 (24.) (36.) 34.8 (12.) 69.6 (24.) (36.) Nominal outsie iamete mm (1/25.4) eviation of a single outsie iamete 3 s, μm Shoul be such that aveage intefeence stans at Shoul be such that aveage intefeence stans at. 5 imensional toleance of housing boe iamete μm ove up to uppe lowe uppe lowe 76.2 ( 3.) 127. ( 5.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 127. ( 5.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 127. ( 5.) 34.8 (12.) 69.6 (24.) 76.2 ( 3.) 127. ( 5.) 34.8 (12.) 69.6 (24.) 127. ( 5.) 34.8 (12.) 69.6 (24.) (36.) 127. ( 5.) 34.8 (12.) 69.6 (24.) (36.) 127. ( 5.) 34.8 (12.) 69.6 (24.) (36.) 127. ( 5.) 34.8 (12.) 69.6 (24.) (36.) Remaks Geneally, beaing intenal cleaance shoul be lage than stana. Inne ing is isplaceable in axial iection. Geneally, beaing intenal cleaance shoul be lage than stana. Remaks Oute ing is easily isplaceable in axial iection. Oute ing is isplaceable in axial iection. Oute ing is fixe in axial iection. Oute ing is fixe in axial iection. 4 41

24 3. eaing fits Table 3-5 Recommene shaft an housing fits fo metic J seies tapee olle beaings (classes PK, PN) Rotating inne ing loa Loa type Nomal loa Heavy loa Impact loa High spee otation Nominal boe iamete mm ove up to (1) Fits fo shaft Class of shaft toleance ange m 6 n 6 n 6 p Remaks Geneally, beaing intenal cleaance shoul be lage than stana. Table 3-6 Recommene shaft an housing fits fo thust beaings (classes, 6) (1) Fits fo shaft Loa type Cental axial loa (geneally fo thust beaings) Combine loa spheical thust olle beaing Stationay shaft washe loa Rotating shaft washe loa o ineteminate iection loa Shaft iamete, mm ove up to Class of shaft toleance ange Remaks All shaft iametes js 6 h 6 may also be use. All shaft iametes js k 6 m 6 n 6 js 6, k 6 an m 6 may be use in place of k 6, m 6 an n 6, espectively. Rotating oute ing loa Nomal loa without impact Heavy loa Impact loa High spee otation Loa type Use fo fee o fixe sie h 6 o g Nominal outsie iamete mm ove up to n 6 p (2) Fits fo housing Class of housing boe iamete toleance ange G 7 F 6 Geneally, beaing intenal cleaance shoul be lage than stana. Remaks Oute ing is easily isplaceable in axial iection. Loa type Cental axial loa (geneally fo thust beaings) Combine loa spheical thust olle beaing Stationay housing washe loa Ineteminate iection loa o otating housing washe loa Class of housing boe iamete toleance ange [Remak] This table is applicable to cast ion o steel housings. H 8 H 7 K 7 M 7 (2) Fits fo housing Remaks Select such toleance ange class as povies cleaance in the aial iection fo housing washe. In case of thust ball beaings equiing high accuacy. In case of application une nomal opeating conitions. In case of compaably lage aial loa. Rotating inne ing loa Rotating oute ing loa Position of oute ing is ajustable (in axial iection) Position of oute ing is not ajustable (in axial iection) Position of oute ing is not ajustable (in axial iection) 18 4 J 7 Oute ing is isplaceable in axial iection P 7 Oute ing is fixe in axial iection R 7 Oute ing is fixe in axial iection

25 3. eaing fits 3-4 Recommene fits fo olling mill oll neck beaing A olling mill oll neck beaing is subject to inne ing otating loa. Its inne ing always eceives a loa on its entie cicumfeence, an a loa is applie to the oute ing at only one location. Thus, intefeence fit is equie fo the inne ing to pevent any ceep, an cleaance fit shoul be use fo the oute ing, in pinciple. Fo easy attachment, cleaance fit has been use fo oll neck beaings (because ecombination an eplacement must be fequently one fo oll gining). Howeve, with moe incease in olling spee an olling loa, intefeence fit has been moe commonly use to pevent ange of ceep to be geneate when cleaance fit is use an impove in accuacy of poucts. Cleaance fit is use fo the inne ings of eep goove ball beaings an angula ball beaings use as beaings eceiving axial loa. etween the oute ing an the chock, aequate cleaance shoul be povie in oe to pevent any aial loa applie to the oute ing. Tables 3-7 though 3-1 show the ecommene fits fo oll neck beaings. When machining a oll neck o chock, its ounness must not excee 5 % of the allowable toleances shown in Tables 3-7 though 3-1. If its ounness is poo, fetting coosion may fequently occu. Table 3-7 Recommene fits fo oll neck metic seies fou-ow tapee olle beaing Nominal boe iamete, mm ouble cone an oll neck (shaft) Single plane mean boe iamete eviation 3 mp μm Roll neck iamete eviation μm Nominal outsie iamete, mm Cup an chock (housing) Single plane mean outsie iamete eviation 3 mp μm Chock boe iamete eviation μm ove up to uppe lowe uppe lowe ove up to uppe lowe uppe lowe Table 3-8 Recommene fits fo oll neck inch seies fou-ow tapee olle beaing Nominal boe iamete mm (1/25.4) ouble cone an oll neck (shaft) Single boe iamete eviation 3 s μm Roll neck iamete eviation μm Nominal outsie iamete mm (1/25.4) Cup an chock (housing) Single outsie iamete eviation 3 s μm Chock boe iamete eviation μm ove up to uppe lowe uppe lowe ove up to uppe lowe uppe lowe 76.2 ( 3.) 11.6 ( 4.) 127. ( 5.) 11.6 ( 4.) 127. ( 5.) ( 6.) (12.) 69.6 (24.) 34.8 (12.) 69.6 (24.) (36.) ( 6.) 23.2 ( 8.) 34.8 (12.) 69.6 (24.) (36.) (48.) 23.2 ( 8.) 34.8 (12.) 69.6 (24.) (36.) (48.) (36.) (48.) (6.) (48.) (6.)

26 3. eaing fits Table 3-9 Recommene fits fo oll neck fou-ow cylinical olle beaing (inne ing intefeence fit) Nominal boe iamete, mm Inne ing an oll neck (shaft) Single plane mean boe iamete eviation 3 mp μm Roll neck iamete eviation μm Nominal outsie iamete, mm Oute ing an chock (housing) Single plane mean outsie iamete eviation 3 mp μm [Note] The table above shows geneal values. JTEKT etemines ecommene fit on a case by case basis accoing to beaing mateials an opeating conitions to pevent the inne ing fom ceeping. Consult with JTEKT when efeing to this table. Table 3-1 Recommene fits of beaing types fo suppot of axial loaing Chock boe iamete eviation μm ove up to uppe lowe uppe lowe ove up to uppe lowe uppe lowe (p6) (H7) (p6) (H7) (p6) (H7) (6) (6) (H7) (6) (6) (G7) (6) (6) (G7) (6) (s6) (G7) (s6) (s6) (F7) (s6) (s6) (F7) (s6) (s6) (F7) (F7) (E7) eaing type eep goove ball beaing Angula ball beaing ouble ow tapee olle beaing (beaings fo suppot of axial loaing) TIS type Thust tapee olle beaing Spheical thust olle beaing Inne ing an oll neck (shaft) Shaft toleance ange class e6 o f6 Oute ing an chock (housing) Mounte to chock Mounte to sleeve Chock boe toleance ange class Nominal chock boe = Oute ing oute ia. + [.5 to 1.] H8 Sleeve boe toleance ange class [Remak] When installing a sleeve, cleaance of.5 mm o moe shoul be povie between the oute iamete of the sleeve an the boe of the chock. G7 G7 4. Intenal cleaance eaing intenal cleaance is efine as the total istance eithe inne o oute ing can be move when the othe ing is fixe. If movement is in the aial iection, it is calle aial intenal cleaance; if in the axial iection, axial intenal cleaance. (Fig. 4-1) eaing pefomance epens geatly upon intenal cleaance uing opeation (also efee to as opeating cleaance); inappopiate cleaance esults in shot olling fatigue life an geneation of heat, noise o vibation. Raial intenal cleaance Fig. 4-1 eaing intenal cleaance [Refe.] Relation to aial inteanal cleaance an axial intenal cleaance (1) eep goove ball beaing a = (4m o ) Axial intenal cleaance (4-1) (2) ouble-ow angula contact ball beaing 2 a = 2 m o (mo cosα ) 2 2m o sinα 2 (4-2) (3) Matche pai angula contact ball beaing = 2m o sinα 2 m 2 o (m o cosα + ) 2 a 2 (4-3) (4) ouble/fou-ow an matche pai tape olle beaing 1.5 a = cot α (4-4) e whee : 3 a : Axial intenal cleaance mm 3 : Raial intenal cleaance mm α : Nominal contact angle eg. e : Limite value of F a /F (shown in the beaing specification table) m o : e + i w mm e : Oute ing aceway goove aius mm i : Inne ing aceway goove aius mm w : all iamete mm The tem esiual cleaance is efine as the oiginal cleaance ecease owing to expansion o contaction of a aceway ue to fitting, when the beaing is mounte in the shaft an housing. The tem effective cleaance is efine as the esiual cleaance ecease owing to imensional change aising fom tempeatue iffeentials within the beaing. The tem opeating cleaance is efine as the intenal cleaance pesent while a beaing mounte in a machine is otating une a cetain loa, o, the effective cleaance incease ue to elastic efomation aising fom beaing loas. Opeating cleaance gives geat influences on the pefomance an sevice life of beaings. Thus, it is ecommene to select the opeating cleaance of a ball beaing so that the opeating cleaance is slightly positive, while the lowe limite value of the opeating cleaance ange of a olle beaing is slightly positive. It is impotant to take specific opeating conitions into consieation an select a cleaance suitable fo the conitions. Fo example, when high igiity is equie, o when the noise must be minimize, the opeating cleaance must be euce. On the othe han, when high opeating tempeatue is expecte, the opeating cleaance must be incease. Table 4-1 shows how to etemine the opeating cleaance in the case of shaft an housing mae of steel. The stana values of beaing intenal cleaance befoe mounting ae shown in Tables 4-2 though

27 4. Intenal cleaance Table 4-1 How to etemine opeating cleaance In Table 4-1, Opeating cleaance (S) Oute ing all S : opeating cleaance S w : incease of cleaance ue to loa S = S o (S f + S t1 + S t2 ) + S w * S fo : euction of cleaance ue to fitting of the oute ing an housing Effective cleaance S t : ecease of cleaance ue to tempeatue iffeentials between inne an oute ings Resiual cleaance S o : cleaance befoe mounting (oiginal cleaance) S fi : ecease of cleaance ue to fitting of inne ing an shaft * Sw (incease of cleaance ue to loa) is geneally small, an thus may be ignoe, although thee is a equation fo etemining the value. S : opeating cleaance mm S o : cleaance befoe mounting mm S f : ecease of cleaance ue to fitting mm S fi : expansion of inne ing aceway contact iamete mm S fo : contaction of oute ing aceway contact iamete mm S t1 : ecease of cleaance ue to tempeatue iffeentials between inne an oute ings mm S t2 : ecease of cleaance ue to tempeatue ise of the olling elements mm S w : incease of cleaance ue to loa mm 3 eff : effective intefeence of inne ing mm : nominal boe iamete mm (shaft iamete) : boe iamete of hollow shaft mm i : inne ing aceway contact iamete mm ball beaing i.2 ( + 4 ) olle beaing i.25 ( + 3 ) 3 eff : effective intefeence of oute ing mm h : outsie iamete of housing mm e : oute ing aceway contact iamete mm ball beaing e.2 (4 + ) olle beaing e.25 (3 + ) : nominal outsie iamete mm α : linea expansion coefficient of beaing steel ( ) 1/ C w : aveage iamete of olling elements mm ball beaing w.3 ( ) olle beaing w.25 ( ) t i : tempeatue ise of the inne ing C t e : tempeatue ise of the oute ing C t w : tempeatue ise of olling elements C eaings ae sometimes use with a non-steel shaft o housing. In the automotive inusty, a statistical metho is often incopoate fo selection of cleaance. In these cases, o when othe special opeating conitions ae involve, JTEKT shoul be consulte. ecease of cleaance ue to fitting (S f) ecease of cleaance ue to tempeatue iffeentials between inne an oute ings (S t1) ecease of cleaance ue to tempeatue ise of olling element (S t2) (In the case of hollow shaft) S fi = eff i (In the case of soli shaft) S fi = eff i i 2 The amount of ecease vaies epening on the state of housing; howeve, geneally the amount can be appoximate by the following equation on the assumption that the oute ing will not expan : S t1 = α ( i t i e t e ) S t2 = 2 α w t w (In the case of h ) S fo = e h eff 1 e 2 2 h (In the case of h = ) S fo = eff e whee : e = i + 2 w Consequently, S t1 + S t2 will be etemine by the following equation : S t1 + S t2 = α i t α w t 2 Tempeatue iffeential between the inne an oute ings, t 1, can be expesse as follows : t 1 = t i t e Tempeatue iffeential between the olling element an oute ing, t 2, can be expesse as follows : t 2 = t w t e 48 49

28 4. Intenal cleaance Table 4-2 Raial intenal cleaance of eep goove ball beaings (cylinical boe) [Remak] Values in Italics ae pescibe in JTEKT stanas. Unit : µm Nominal boe iamete Cleaance, mm C 2 C N C 3 C 4 C 5 ove up to min. max. min. max. min. max. min. max. min. max Table 4-3 (1) Axial intenal cleaance of matche pai angula contact ball beaings (measuement cleaance) 1) Unit : µm Nominal boe Contact angle : 15 Contact angle : 3 iamete, mm C 2 C N C 2 C N C 3 C 4 ove up to min. max. min. max. min. max. min. max. min. max. min. max [Note] 1) Incluing incease of cleaance cause by measuement loa. Table 4-3 (2) Axial intenal cleaance of matche pai angula contact ball beaings (measuement cleaance) 1) Unit : µm Nominal boe Contact angle : 4 iamete, mm C 2 C N C 3 C 4 ove up to min. max. min. max. min. max. min. max [Note] 1) Incluing incease of cleaance cause by measuement loa. Table 4-4 Raial intenal cleaance of cylinical olle beaings (1) Cylinical boe beaings Unit : µm Nominal boe iamete Cleaance, mm C 2 C N C 3 C 4 C 5 ove up to min. max. min. max. min. max. min. max. min. max

29 4. Intenal cleaance Table 4-4 Raial intenal cleaance of cylinical olle beaings (2) Tapee boe beaings Unit : µm Nominal boe iamete Non-intechangeable cleaance, mm C 9 NA 1) C 1 NA C 2 NA C N NA C 3 NA C 4 NA C 5 NA ove up to min. max. min. max. min. max. min. max. min. max. min. max. min. max [Note] 1) Cleaance C9NA shoul be applie to tapee cylinical olle beaings of JIS toleance classes 5 an 4. Table 4-5 Raial intenal cleaance of ouble / fou-ow an matche pai tapee olle beaings (1) Cylinical boe beaings Unit : µm Nominal boe iamete Cleaance, mm C 1 C 2 C N C 3 C 4 ove up to min. max. min. max. min. max. min. max. min. max (2) Tapee boe beaings Unit : µm Nominal boe iamete Cleaance, mm C 1 C 2 C N C 3 C 4 ove up to min. max. min. max. min. max. min. max. min. max

30 4. Intenal cleaance Table 4-6 Raial intenal cleaance of spheical olle beaings (1) Cylinical boe beaings Unit : µm Nominal boe iamete Cleaance, mm C 2 C N C 3 C 4 C 5 ove up to min. max. min. max. min. max. min. max. min. max (2) Tapee boe beaings Unit : µm Nominal boe iamete Cleaance, mm C 2 C N C 3 C 4 C 5 ove up to min. max. min. max. min. max. min. max. min. max

31 3 5. Lubication Lubication is one of the most impotant factos etemining beaing pefomance. The suitability of the lubicant an lubication metho have a ominant influence on beaing life. Functions of lubication : *To lubicate each pat of the beaing, an to euce fiction an wea *To cay away heat geneate insie beaing ue to fiction an othe causes *To cove olling contact suface with the pope oil film in oe to polong beaing fatigue life *To pevent coosion an contamination by it eaing lubication is classifie boaly into two categoies: gease lubication an oil lubication. Table 5-1 makes a geneal compaison between the two. Table 5-1 Compaison between gease an oil lubication Sealing evice Item Gease Oil Easy Lubicating ability Rotation spee Replacement of lubicant Life of lubicant Cooling effect Filtation of it Goo Low/meium spee Slightly toublesome Relatively shot No cooling effect ifficult 5-1 Gease lubication Slightly complicate an special cae equie fo maintenance Excellent Applicable at high spee as well Easy Long Goo (ciculation is necessay) Easy Gease lubication is wiely applie since thee is no nee fo eplenishment ove a long peio once gease is fille, an a elatively simple stuctue can suffice fo the lubicant sealing evice. Thee ae two methos of gease lubication. One is the close lubication metho, in which gease is fille in avance into shiele/seale beaing; the othe is the feeing metho, in which the beaing an housing ae fille with gease in pope quantities at fist, an efille at a egula inteval via eplenishment o eplacement. evices with numeous gease inlets sometimes employ the centalize lubicating metho, in which the inlets ae connecte via piping an supplie with gease collectively. 1) Amount of gease In geneal, gease shoul fill appoximately one-thi to one-half the insie space, though this vaies accoing to stuctue an insie space of housing. It must be bone in min that excessive gease will geneate heat when chune, an will consequently alte, eteioate, o soften. When the beaing is opeate at low spee, howeve, the insie space is sometimes fille with gease to two-this to full, in oe to peclue infiltation of contaminants. 2) Replenishment/eplacement of gease The metho of eplenishing/eplacing gease epens lagely on the lubication metho. Whicheve metho may be utilize, cae shoul be taken to use clean gease an to keep it o othe foeign matte out of the housing. In aition, it is esiable to efill with gease of the same ban as that fille at the stat. When gease is efille, new gease must be injecte insie beaing. Fig. 5-1 gives one example of a feeing metho. Gease secto (Insie of housing A) A Gease nipple Gease valve Fig. 5-1 Example of gease feeing metho (using gease secto) In the example, the insie of the housing is ivie by gease sectos. Gease fills one secto, then flows into the beaing. On the othe han, gease flowing back fom the insie is foce out of the beaing by the centifugal foce of the gease valve. When the gease valve is not use, it is necessay to enlage the housing space on the ischage sie to stoe ol gease. The housing is uncovee an the stoe ol gease is emove at egula intevals. 3) Gease feeing inteval In nomal opeation, gease life shoul be egae oughly as shown in Fig. 5-2, an eplenishment/eplacement shoul be caie out accoingly Rotational spee, min 1 eaing opeating tempeatue T C Fig. 5-2 Gease feeing inteval Inteval tf, h [A] [] [C] [Notes] 1) [A] : aial ball beaing [] : cylinical olle beaing, neele olle beaing [C] : tapee olle beaing, spheical olle beaing, thust ball beaing ) Tempeatue coection Nominal boe iamete of beaing = When the beaing opeating tempeatue excees 7 C, t f ', obtaine by multiplying t f by coection coefficient a, foun on the scale below, shoul be applie as the feeing inteval. t f ' = t f a Tempeatue coection coefficient a

32 5. Lubication 5-2 Oil lubication Oil lubication is usable even at high spee otation an somewhat high tempeatue, an is effective in eucing beaing vibation an noise. Thus oil lubication is use in many cases whee gease lubication oes not wok. Table 5-2 shows majo types an methos of oil lubication. (4) Foce oil ciculation *This metho employs a ciculation-type oil supply system. Supplie oil lubicates insie of the beaing, is coole an sent back to the tank though an oil escape pipe. The oil, afte filteing an cooling, is pumpe back. *Wiely use at high spees an high tempeatue conitions. *It is bette to use an oil escape pipe appoximately twice as thick as the oil supply pipe in oe to pevent too much lubicant fom gatheing in housing. *Requie amount of oil : see Remak 1 (on page 6). Cooling Filtation (1) Oil bath Table 5-2 Type an metho of oil lubication *Simplest metho of beaing immesion in oil fo opeation. *Suitable fo low/meium spee. *Oil level gauge shoul be funishe to ajust the amount of oil. (In the case of hoizontal shaft) About 5 % of the lowest olling element shoul be immese. (In the case of vetical shaft) About 7 to 8 % of the beaing shoul be immese. *It is bette to use a magnetic plug to pevent wea ion paticles fom ispesing in oil. a magnetic plug (5) Oil jet lubication *This metho uses a nozzle to jet oil at a constant pessue (.1 to.5 MPa), an is highly effective in cooling. *Suitable fo high spee an heavy loa. *Geneally, the nozzle (iamete.5 to 2 mm) is locate 5 to 1 mm fom the sie of a beaing. When a lage amount of heat is geneate, 2 to 4 nozzles shoul be use. *Since a lage amount of oil is supplie in the jet lubication metho, ol shoul be ischage with an oil pump to pevent excessive esiual oil. *Requie amount of oil : see Remak 1 (on page 6). (2) Oil ip *Oil is ippe with an oiling evice, an the insie of the housing is fille with oil mist by the action of otating pats. This metho has a cooling effect. *Applicable at elatively high spee an up to meium loa. *In geneal, 5 to 6 ops of oil ae utilize pe minute. (It is ifficult to ajust the ipping in 1 ml/h o smalle amounts.) *It is necessay to pevent too much oil fom being accumulate at the bottom of housing. (6) Oil mist lubication (spay lubication) *This metho employs an oil mist geneato to pouce y mist (ai containing oil in the fom of mist). The y mist is continuously sent to the oil supplie, whee the mist is tune into a wet mist (sticky oil ops) by a nozzle set up on the housing o beaing, an is then spaye onto beaing. *Requie amount of mist : see Remak 2 (on page 61). *This metho povies an sustains the smallest amount of oil film necessay fo lubication, an has the avantages of peventing oil contamination, simplifying beaing maintenance, polonging beaing fatigue life, eucing oil consumption etc. (3) Oil splash *This type of lubication metho makes use of a gea o simple flinge attache to shaft in oe to splash oil. This metho can supply oil fo beaings locate away fom the oil tank. *Usable up to elatively high spee. *It is necessay to keep oil level within a cetain ange. *It is bette to use a magnetic plug to pevent wea ion paticles fom ispesing in oil. It is also avisable to set up a shiel o baffle boa to pevent contaminants fom enteing the beaing. (Example of gining machine) Supply of oil ischage of oil (Example of olling mill) Supply of oil Supply of oil ischage of oil ischage of oil 58 59

33 5. Lubication (7) Oil / ai lubication Remak 1 Oil / ai inlet *A popotioning pump sens foth a small quantity of oil, which is mixe with compesse ai by a mixing valve. The amixtue is supplie continuously an stably to the beaing. *This metho enables quantitative contol of oil in extemely small amounts, always supplying new lubicating oil. It is thus suitable fo machine tools an othe applications equiing high spee. Oil / ai inlet Oil / ai can be supplie hee. Oil / ai inlet (5 points) Oil / ai inlet Oil / ai outlet (2 points) Oil / ai outlet (Example of spinle unit incopoating oil / ai lubication system) *Compesse ai an lubicating oil ae supplie to the spinle, inceasing the intenal pessue an helping pevent it, cutting-liqui, etc. fom enteing. As well, this metho allows the lubicating oil to flow though a feeing pipe, minimizing atmospheic pollution. Requie oil supply in foce oil ciculation ; oil jet lubication methos G = n P 6 c T whee : G : equie oil supply L/min l : fiction coefficient (see table at ight) : nominal boe iamete mm n : otational spee min 1 P : ynamic equivalent loa of beaing N c : specific heat of oil kJ/kg K : ensity of oil g/cm 3 3 T : tempeatue ise of oil K Oil / ai istibuto (Example of olling mill oll neck beaing) Values of fiction coefficient l eaing type eep goove ball beaing Angula contact ball beaing Cylinical olle beaing Tapee olle beaing Spheical olle beaing l Remak 2 1) Requie amount of mist (mist pessue : 5 kpa) (In the case of a beaing) In the case of two oil seals combine Notes on oil mist lubication =.11R =.28 1 whee : : equie amount of mist L/min : nominal boe iamete mm R : numbe of olling element ows 1 : insie iamete of oil seal mm In the case of high spee ( mn ), it is necessay to incease the amount of oil an heighten the mist pessue. 2) Piping iamete an esign of lubication hole/goove When the flow ate of mist in piping excees 5 m/s, oil mist suenly conenses into an oil liqui. Consequently, the piping iamete an imensions of the lubication hole/goove in the housing shoul be esigne to keep the flow ate of mist, obtaine by the following equation, fom exceeing 5 m/s..167 V = 5 A whee : V : flow ate of mist m/s : amount of mist L/min A : sectional aea of piping o lubication goove cm 2 3) Mist oil Oil use in oil mist lubication shoul meet the following equiements. *ability to tun into mist *has high exteme pessue esistance *goo heat/oxiation stability *ust-esistant *unlikely to geneate sluge *supeio emulsifie Oil mist lubication has a numbe of avantages fo high spee otation beaings. Its pefomance, howeve, is lagely affecte by suouning stuctues an beaing opeating conitions. If contemplating the use of this metho, please contact with JTEKT fo avice base on JTEKT long expeience with oil mist lubication. Remak 3 Hoizontal oll Vetical oll Requie oil supply in oil / ai lubication (Rolling mill oll neck beaing).85r = A.17R = A whee : : Requie oil supply cm 3 /h : Nominal boe iamete mm R : Numbe of olling element ows A : Coefficient (low spee : 1, high spee : 5) The values obtaine by the above equation show quantities of oil equie to cay away all the geneate heat, with heat elease not taken into consieation. In eality, the oil supplie is geneally half to two-this of the calculate value. Heat elease vaies wiely accoing to the application an opeating conitions. To etemine the optimum oil supply, it is avise to stat opeating with two-this of the calculate value, an then euce the oil gaually while measuing the opeating tempeatue of beaing, as well as the supplie an ischage oil. 6 61

34 5. Lubication 5-3 Lubicant Gease Gease is mae by mixing an ispesing a soli of high oil-affinity (calle a thickene) with lubicant oil (as a base), an tansfoming it into a semi-soli state. As well, a vaiety of aitives can be ae to impove specific pefomance. (1) ase oil Mineal oil is usually use as the base oil fo gease. When low tempeatue fluiity, high tempeatue stability, o othe special pefomance is equie, ieste oil, silicon oil, polyglycolic oil, fluoinate oil, o othe synthetic oil is often use. Geneally, gease with a low viscosity base oil is suitable fo applications at low tempeatue o high otation spee; gease with high viscosity base oils ae suitable fo applications at high tempeatue o une heavy loa. (2) Thickene Table 5-3 Chaacteistics of espective geases Lithium gease Most geases use a metallic soap base such as lithium, soium, o calcium as thickenes. Fo some applications, howeve, non-soap base thickenes (inoganic substances such as bentone, silica gel, an oganic substances such as uea compouns, fluoine compouns) ae also use. In geneal, the mechanical stability, beaing opeating tempeatue ange, wate esistance, an othe chaacteistics of gease ae etemine by the thickene. (Lithium soap base gease) Supeio in heat esistance, wate esistance an mechanical stability. (Calcium soap base gease) Supeio in wate esistance; infeio in heat esistance. (Soium soap base gease) Supeio in heat esistance; infeio in wate esistance. (Non-soap base gease) Supeio in heat esistance. Calcium gease (cup gease) Soium gease (fibe gease) (3) Aitives Vaious aitives ae selectively use to seve the espective puposes of gease applications. *Exteme pessue agents When beaings must toleate heavy o impact loas. *Oxiation inhibitos When gease is not efille fo a long peio. Stuctue stabilizes, ust peventives, an coosion inhibitos ae also use. (4) Consistency Consistency, which inicates gease haness, is expesse as a figue obtaine, in accoance with ASTM (JIS), by multiplication by 1 the epth (in mm) to which the coneshape metallic plunge penetates into the gease at 25 C by eaweight in 5 secons. The softe the gease, the highe the figue. Table 5-4 shows the elationships between the NLGI scales an ASTM (JIS) penetation inexes, sevice conitions of gease. (NLGI : National Lubicating Gease Institute) Complex base gease Table 5-4 Gease consistency NLGI scale ASTM (JIS) penetation inex 25 C, 6 mixing Sevice conitions/ applications opeations Fo centalize lubicating Fo centalize lubicating, at low tempeatue Fo geneal use Fo geneal use, at high tempeatue Fo special applications (5) Mixing of iffeent geases Since mixing of iffeent geases changes thei popeties, geases of iffeent bans shoul not be mixe. If mixing cannot be avoie, geases containing the same thickene shoul be use. Even if the mixe geases contain the same thickene, howeve, mixing may still pouce avese effects, ue to iffeence in aitives o othe factos. Thus it is necessay to check the effects of a mixtue in avance, though testing o othe methos. Non-soap base gease Thickene Lithium soap Calcium soap Soium soap Lithium complex soap Calcium complex soap entone Uea compouns Fluoine compouns Thickene ase oil Mineal oil opping point ( C) Opeating tempeatue ange ( C) Rotation spee ange Mechanical stability Wate esistance Pessue esistance Remaks Most wiely usable fo vaious olling beaings. Synthetic oil (ieste oil) Synthetic oil (silicon oil) Mineal oil Mineal oil Mineal oil Mineal oil Mineal oil Mineal/ synthetic oil Synthetic oil 17 to to to 26 8 to 1 16 to o highe 2 to o highe 25 o highe 3 to to to to + 7 to to to to to to + 25 Meium to high High Low to meium Low to meium Low to high Low to high Low to meium Meium to high Low to high Low to meium Excellent Goo to excellent Goo Fai to goo Goo to excellent Goo to excellent Goo Goo Goo to excellent Goo Goo Goo Goo Goo a Goo to excellent Goo Goo Goo to excellent Goo Goo Fai a to fai Fai Goo to excellent Goo Goo Goo to excellent Goo to excellent Goo Supeio low tempeatue an fiction chaacteistics. Suitable fo beaings fo measuing instuments an exta-small ball beaings fo small electic motos. Supeio high an low tempeatue chaacteistics. Suitable fo applications at low otation spee an une light loa. Not applicable at high tempeatue. Liable to emulsify in the pesence of wate. Use at elatively high tempeatue. Supeio mechanical stability an heat esistance. Use at elatively high tempeatue. Supeio pessue esistance when exteme pessue agent is ae. Use in beaings fo olling mills. Suitable fo applications at high tempeatue an une elatively heavy loa. Supeio wate esistance, oxiation stability, an heat stability. Suitable fo applications at high tempeatue an high spee. Supeio chemical esistance an solvent esistance. Usable at up to 25 C. ase oil opping point ( C) Opeating tempeatue ange ( C) Rotation spee ange Mechanical stability Wate esistance Pessue esistance Remaks 62 63

35 5. Lubication Lubicating oil Fo lubication, beaings usually employ highly efine mineal oils, which have supeio oxiation stability, ust-peventive effect, an high film stength. With beaing ivesification, howeve, vaious synthetic oils have been put into use. Type of lubicating oil Highly efine mineal oil [Selection of lubicating oil] The most impotant citeion in selecting a lubicating oil is whethe the oil povies pope viscosity at the beaing opeating tempeatue. Stana values of pope kinematic viscosity can be obtaine though selection by beaing type accoing to Table 5-6 fist, then though selection by beaing opeating conitions accoing to Table 5-7. When lubicating oil viscosity is too low, the oil film will be insufficient. On the othe han, when the viscosity is too high, heat will be geneate ue to viscous esistance. In geneal, the heavie the loa an the highe the opeating tempeatue, the highe the lubicating oil viscosity shoul be ; wheeas, the highe the otation spee, the lowe the viscosity shoul be. Fig. 5-3 illustates the elationship between lubicating oil viscosity an tempeatue. Table 5-5 Chaacteistics of lubicating oils ieste oil Silicon oil These synthetic oils contain vaious aitives (oxiation inhibitos, ust peventives, antifoaming agents, etc.) to impove specific popeties. Table 5-5 shows the chaacteistics of lubicating oils. Mineal lubicating oils ae classifie by applications in JIS an MIL. Majo synthetic oils Polyglycolic oil Polyphenyl ethe oil Fluoinate oil Opeating tempeatue ange ( C) 4 to to to to + 15 to to + 3 Lubicity Excellent Excellent Fai Goo Goo Excellent Oxiation stability Goo Goo Fai Fai Excellent Excellent Raioactivity esistance a a a to fai a Excellent Table 5-6 Pope kinematic viscosity by beaing type eaing type all beaing Cylinical olle beaing Tapee olle beaing Spheical olle beaing Spheical thust olle beaing Pope kinematic viscosity at opeating tempeatue 13 mm 2 /s o highe 2 mm 2 /s o highe 32 mm 2 /s o highe Table 5-7 Pope kinematic viscosities by beaing opeating conitions Opeating Pope kinematic viscosity (expesse in the ISO viscosity gae o the SAE No.) tempeatue mn value Light/nomal loa Heavy/impact loa Refigeating 3 C All otation spees ISO VG 15, 22, 46 machine oil 6 C 6 1 C 1 15 C Viscosity mm 2 /s 3 o lowe ISO VG 46 ISO VG 68 SAE 3 3 to 6 ISO VG 32 eaing oil Tubine oil ISO VG 68 6 o highe ISO VG 7, 1, 22 (eaing oil) 3 o lowe ISO VG 68 (eaing oil) ISO VG 68, 1 SAE 3 3 to 6 ISO VG 32, 46 eaing oil Tubine oil ISO VG 68 eaing oil 6 o highe ISO VG 22, 32, 46 Tubine oil Machine oil 3 o lowe ISO VG 68, 1 SAE 3, 4 (eaing oil) ISO VG to ISO VG 68 SAE 3 eaing oil Tubine oil eaing oil Tubine oil ISO VG 68, 1 SAE 3, 4 A: : C: : E: F: VG 1 VG 15 VG 22 VG 32 VG 46 VG 68 eaing oil Tubine oil eaing oil Tubine oil (eaing oil) eaing oil Tubine oil eaing oil Gea oil (eaing oil) + [Remaks] 1. m n = n { : nominal outsie iamete, : nominal boe iamete, 2 n : otational spee (min 1 )} 2. Refe to efigeating machine oil (JIS K 2211), tubine oil (JIS K 2213), gea oil (JIS K 2219), machine oil (JIS K 2238) an beaing oil (JIS K 2239). 3. Please contact with JTEKT if the beaing opeating tempeatue is une 3 C o ove 15 C. ISO viscosity gae G : VG 1 H: VG 15 I : VG 22 J: VG 32 K: VG 46 L: VG Tempeatue C Fig. 5-3 Relationship between lubicating oil viscosity an tempeatue (viscosity inex : 1)

36 6. eaing mateials eaing mateials inclue steel fo beaing ings an olling elements, as well as steel sheet, steel, coppe alloy an synthetic esins fo cages. These beaing mateials shoul possess the following chaacteistics : 1) High elasticity, uable une high patial contact stess. 2) High stength against olling contact fatigue ue to lage epetitive contact loa. 3) Stong haness 4) High abasion esistance 5) High toughness against impact loa 6) Excellent imensional stability 6-1 eaing ings an olling elements mateials 1) High cabon chomium beaing steel High cabon chomium beaing steel specifie in JIS is use as a geneal mateial in beaing ings (inne ings, oute ings) an olling elements (balls, olles). Thei chemical composition classifie by steel type is given in Table 6-1. Among these steel types, SUJ 2 is geneally use. SUJ 3, which contains aitional Mn an Si, possesses high haenability an is commonly use fo thick section beaings. SUJ 5 has incease haenability, because it was evelope by aing Mo to SUJ 3. Fo small an meium size beaings, SUJ 2 an SUJ 3 ae use, an fo lage size an exta-lage size beaings with thick sections, SUJ 5 is wiely use. Geneally, these mateials ae pocesse into the specifie shape an then unego haening an annealing teatment until they attain a haness of 57 to 64 HRC. Stana JIS G 485 eaing ings Rolling elements eaing ings Rolling elements Cages 2) Case cabuizing beaing steel (case haene steel) When a beaing eceives heavy impact loas, the suface of the beaing shoul be ha an the insie soft. Such mateials shoul possess a pope amount of cabon, ense stuctue, an cabuizing case epth on thei suface, while having pope haness an fine stuctue intenally. Fo this pupose, chomium steel an nickel-chomium-molybenum steel ae use as mateials. Typical steel mateials ae shown in Table 6-2. These mateials also unego vacuum egassing in oe to euce non-metallic inclusions an oxygen content which leas to highe eliability. 3) Othes Fo special applications, the following mateials ae use, accoing to opeational conitions. (When vey high eliability is equie) high efining steel evelope by JTEKT vacuum ac emelte steel electo slag emelte steel (When heat esistance is equie) high spee steel fo high tempeatue beaings efe to Table 6-3 (When high coosion esistance is equie) stainless steel efe to Table 6-4 (When high heat, coosion, an chemical esistance ae equie) ceamics Table 6-1 Chemical composition of high cabon chomium beaing steel Chemical composition (%) Coe C Si Mn P S C Mo Not moe Not moe SUJ than.5 than.8 Not moe Not moe Not moe SUJ than.25 than than.8 SUJ SAE J Not moe than.25 Not moe than Not moe than.6 [Remak] As fo beaings which ae inuction haene, cabon steel with a high cabon content of.55 to.65 % is use in aition to those liste in this table. Stana JIS G 453 SAE J 44 Stana Table 6-2 Chemical composition of case cabuizing beaing steel Coe SC 415 SC 42 SCM 42 Chemical composition (%) C Si Mn P S Ni C Mo Not moe than.3 Not moe than.3 Table 6-3 Chemical composition of high spee steel fo high tempeatue beaings Coe AISI M 5 Stana JIS G 433 SNCM 22 SNCM 42 SNCM Not moe than.35 Not moe than.25 Not moe than.4 Not moe than.25 Table 6-4 Chemical composition of stainless steel Chemical composition (%) C Si Mn P S C Mo V Ni Cu Co W Coe SUS 44 C Not moe than.25 Not moe than.35 Not moe than.15 Not moe than Not moe than.1 Not moe than.1 Not moe than.25 Chemical composition (%) C Si Mn P S C Mo Not moe than 1. Not moe than 1. Not moe than.4 Not moe than Not moe than.25 Not moe than

37 6. eaing mateials 6-2 Mateials use fo cages Since the chaacteistics of mateials use fo cages geatly influence the pefomance an eliability of olling beaings, the choice of mateials is of geat impotance. It is necessay to select cage mateials in accoance with equie shape, ease of lubication, stength, an abasion esistance. Typical mateials use fo metallic cages ae shown in Tables 6-5 an 6-6. In aition, phenolic esin machine cages an othe synthetic esin mole cages ae often use. Mateials typically use fo mole cages ae polyacetal, polyamie (Nylon 6.6, Nylon 4.6), an polyme containing fluoine, which ae stengthene with glass an cabon fibes. (A) Stana Table 6-5 Chemical compositions of pesse cage steel sheet (A) an machine cage cabon steel () Coe JIS G 3141 SPCC Not moe than.12 JIS G 3131 SPHC Not moe than.15 AS 361 SP Not moe than.4 JIS G 435 SUS 34 Chemical composition (%) C Si Mn P S Ni C Not moe than.8 Not moe than 1. Not moe than.5 Not moe than.6 Not moe than.4 Not moe than.5 Not moe.25.6 than.3 Not moe than 2. () JIS G 451 S 25 C Not moe than.45 Not moe than.3 Not moe than.45 Not moe than.5 Not moe than.3 Not moe than.3 Not moe than Table 6-6 Chemical composition of high-tensile bass casting of machine cages (%) Stana Coe Cu Zn Mn Fe AI Sn Ni JIS H 512 CAC 31 (HsC ) : Mateial with HsC is use Not moe than 1. Not moe than 1. Impuity Pb Si Not moe than.4 Not moe than

38 7. Examples of failues Table 7-1 (1) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (1) Flaking Flaking cause by excessive Flaking on beaing axial loa aceway suface geneate on only ows eceiving axial loa 1) Cosse wok olls causing excessive axial loa Roll neck iamete is smalle than the stana one. Chock sie line is won. Inaccuacy of mill stan. Rigiity of the chock is poo. Coosion on line o cleaance geneate between the line an the chock. Failue of the keepe plate. 1) Keep the coect locations of the chock an wok oll. Inne ing of fou-ow tapee olle beaing Flaking geneate an evelope fom aceway en face 1) Looseness of chock cove/excessive axial cleaance As the axial cleaance is incease, the loaing ange becomes naowe, patial loa acts, an ege loa is geneate on the oute ing aceway. 2) Excessive axial cleaance is geneate because of the mixe use of othe beaing space o oute ing. 1) Ajust shims, select thickness of shims, measue a gap, an tighten bolts coectly. 2) Use pats of the same numbe. Oute ing aceway of fou-ow tapee olle beaing (1) 1st ow 2n ow 3 ow 4th ow Flaking cause by impope mounting Loaing position (1) Loaing position (2) Flaking on aceway suface with slante contact 1) It occus when the chock is fixe inappopiately an slantingly. Failue of keepe plate Removal, looseness, amage, efomation, ben, unequal tightening, unequal wea, impope paallelism amage, efome, o bent chock flange 1) Fin the cause of amage by peioic inspection of the chock an stan. (2) (4) Loaing position (3) Loaing position (4) (3) Oute ing aceway of fou-ow tapee olle beaing Flaking at cooe stat point Flaking on aceway suface state fom cooe (uste) potion 1) Afte the beaing was use, it has been left fo a long peio with moistue mixe in gease. 2) Impope ust peventive teatment afte the beaing was washe. 3) Won o amage seal lips 4) Coosion on the aceway is geneate ue to the cleaance between the oll neck an the sleeve, an flaking occus with ust. 1) Impove seal maintenance an sealing metho. Peioically check fo wea o amage on the seal lips. 2) Fit the O ing between the oll neck an the sleeve. 3) Immeiately afte the beaing is emove fom the chock, change gease. 4) Afte washing the beaing, emove keosene an wate completely. Oute ing aceway of fou-ow tapee olle beaing 7 71

39 7. Examples of failues Table 7-1 (2) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (1) Flaking Flaking on nicks (scatch) stat Flaking on olling point contact suface with nicks stat point 1) Inappopiate hanling Mounting / ismounting beaing to / fom chock Replacing oll 1) Pope hanling jig (use of a coppe hamme) 2) Pevention of impact loa when eplacing oll (use of soft mateial) 3) Impovement in mounting metho 4) Change in aceway chamfeing Rolling contact suface of fou-ow cylinical olle beaing Flaking on aceway suface 1) Low viscosity lubication (impope lubication) 2) Ingess of usts an foeign mattes 1) Impovement in viscosity of oil an oil type 2) Impovement in seal maintenance an sealing metho Peioic check of wea o amage of seal lip 3) Check of oil filte Oute ing aceway of ouble-ow cylinical olle beaing Inne ing aceway of ouble-ow cylinical olle beaing Inne ing aceway of ouble-ow cylinical olle beaing (2) Cacking Chipping Minute cack on inne ing sie face 1) Fix the inne ing an the oll with a fillet ing (thust colla). 2) Cleaance between the fillet ing (thust colla) an the inne ing is excessively small. 3) Aea of the sie face of nut/slinge contacting the inne ing sie face is too small, the sie face is won ue to inne ing ceep, causing heat. 1) Keep the cleaance between the inne ing an the fillet ing (thust colla) (fom.5 mm to 1.5 mm). 2) Keep the aea of the sie of fillet ing (thust colla) (to euce pessue on the sie face). 3) Apply an supply gease of aequate amount. Inne ing sie face of fou-ow tapee olle beaing Rolling contact suface of fou-ow cylinical olle beaing Cacking on olling elements 1) Application of loa geate than beaing loa ating (Loa esistance of olle by use of pin type cage) 2) Seconay facto in case of amage pin of cage (Fo a evesible mill, pins ae boken ue to fatigue cause by api acceleation an eceleation) 3) Othe factos Ingess of wate ue to faulty sealing Incease of axial cleaance of beaing, causing application of patial an excessive loa 1) Optimal esign of beaing consieing loa an opeating conitions (Examination of optimal cage type) 2) Reviewing sealing metho an esign of stength of cove 72 73

40 7. Examples of failues Table 7-1 (3) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (2) Cacking Chipping Cack on oute ing 1) Impact loa acting ue to accients of olling mill (fo example, plate being caught in, ingess of usts) 2) Rolling loa acting unevenly ue to uneven oveall thickness of beaing in the shaft, causing excessive loa to a thick section beaing (fo multi-oll mill, UR beaing) 1) Change to oute ing mateial o heat teate mateial ha to be cacke. 2) Appopiate oveall thickness contol of beaings in a shaft Oute ing outsie suface of ouble-ow cylinical olle beaing Oute ing sie face of ouble-ow cylinical olle beaing Oute ing outsie of ouble-ow cylinical olle beaing Gining bun o cack on inne ing aceway suface 1) Afte fitting an inne ing into the oll neck, gining bun occus uing gining with the inne ing an the oll. 2) Cack occus because olles olling on the aceway suface of which stength (haness) is ecease ue to gining bun. 1) Reviewing gining conitions Gain size of gining stone, gining stone cutting amount, cutting pessue, gining flui amount, etc. Inne ing aceway of fou-ow cylinical olle beaing Inne ing aceway of fou-ow cylinical olle beaing Gining bun o cack on oute ing outsie suface 1) Gining bun occus when e-gining the oute ing of a multi-oll mill beaing. 2) Cack occus because the oute ing of which stength (haness) is ecease by gining bun contacts with the intemeiate oll. Oute ing outsie suface of ouble-ow cylinical olle beaing 74 75

41 7. Examples of failues Table 7-1 (4) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (2) Cacking Chipping Factue section of inne ing Axial cack occus on boe suface of inne ing an aceway suface. 1) Excessive intefeence between inne ing an shaft 2) Geat fit stess ue to excessive iffeence in tempeatue of inne ing an that of shaft 1) Appopiate fit conitions of inne ing an shaft 2) Appopiate iffeence in tempeatue by checking loa, otation, an tempeatue conitions. (appopiate fit) Inne ing of spheical olle beaing Cicumfeential cack occus on boe suface an aceway suface of inne ing. 1) Step wea occus on the shaft (oll neck), an the inne ing oveies the shaft, causing geat boe suface stess 1) Povie cicumfeential goove fo the oll neck. 2) When using a beaing with iffeent chamfes fo a oll, make the chamfes ientical. Inne ing boe suface of fou-ow tapee olle beaing Axial cack occus on outsie suface an aceway suface of oute ing. 1) Excessive axial loa 2) Axial cleaance between the beaing an oll is geat, an excessive axial loa is applie. 1) Check fo axial loa. 2) Check the wea conition of countepat components. 3) Reviewing thickness of the oute ing Oute ing aceway of ouble-ow tapee olle beaing Factue section of oute ing Cack occus on inne ing back face ib. 1) Excessive axial loa 2) Low holing shoule iamete on the inne ing back face ib 1) Reviewing opeating conitions 2) Reviewing imensions of countepat colla (imensions allowing backup of inne ing back face ib) Inne ing aceway of spheical thust olle beaing Assembly of tapee olle beaing 76 77

42 7. Examples of failues Table 7-1 (5) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (3) inelling Nicks Oute ing aceway suface of fou-ow tapee olle beaing 1) inelling (Nicks) on aceway an olling contact sufaces (scatch) 2) inelling on aceway suface at the same inteval as olling element spacing 1) Nicks occu on the aceway an olles because of impope hanling. Mounting / ismounting beaing to / fom chock Replacing oll 2) Geat bening loa is applie to the oll neck. (Especially, when faulty olling occus) 1) Pope hanling jig (use of a coppe hamme) 2) Application of gease to aceway suface of inne an oute ings (Apply oil if the beaing is the oil lubicate type) 3) Pevention of impact loa when eplacing oll (Use of soft mateial) 4) Roll bening compae to beaing static loa ating 5) Impovement in mounting metho 6) Change in aceway chamfeing 7) Check fo excessive loa on the slant chamfe of the aceway suface Rolling contact suface of fou-ow cylinical olle beaing (4) Scatch Scuffing Scuffing on olle en face an ib of the aceway 1) Impope lubication, ingess of foeign mattes 2) Abnomal axial loa cause by impope mounting o contol of beaing oveall thickness 3) Excessive axial loa 4) Excessive peloa 1) Selection of appopiate oil type an supply of aequate lubicant 2) Reviewing beaing mounting location 3) Reviewing beaing oveall thickness contol 4) Reviewing opeating conitions 5) Checking peloa Rolle en face of ouble-ow cylinical olle beaing Oute ing ib of ouble-ow cylinical olle beaing Rolle lage en face of ouble-ow tapee olle beaing 78 79

43 7. Examples of failues Table 7-1 (6) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (5) Smeaing Smeaing on aceway o olling contact suface 1) Impope lubication 2) Slip of olling elements (high spee, light loa) 3) Ingess of foeign mattes uing maintenance 1) Selection of appopiate oil type an supply of aequate lubicant 2) Setup of appopiate peloa 3) Pevention of ingess of foeign mattes Oute ing aceway suface of fou-ow tapee olle beaing Oute ing aceway suface of spheical olle beaing Oute ing aceway suface of spheical olle beaing Rolling element suface of spheical olle beaing (6) Coosion Rust Coosion Rust, coosion on the aceway suface at the same inteval as olling element spacing 1) Won o amage seal lips 2) Ingess of wate o coosive mateials into cleaance between oll neck an sleeve 1) Impove seal maintenance an sealing metho. Peioically check fo wea o amage on the seal lips. 2) Fit the "O" ing between the oll neck an the sleeve. Oute ing of fou-ow tapee olle beaing Oute ing of fou-ow tapee olle beaing Rust Rust on patial o entie suface of beaing 1) Afte the beaing was use, it has been left fo a long peio with moistue mixe in gease. 2) Impope ust peventive teatment afte the beaing was washe. 1) Immeiately afte the beaing is emove fom the chock, change gease. 2) Afte washing the beaing, emove keosene an wate completely. Oute ing of fou-ow tapee olle beaing 8 81

44 7. Examples of failues Table 7-1 (7) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (7) Ceeping Wea, iscoloation, an scuffing ue to slip of fit suface 1) Insufficient gease o oil between the inne ing boe suface an the oll neck outsie suface When ceep occus between the inne ing an the oll neck, because of loose fit of them. 1) Povie the spial goove fo boe suface of inne ing 2) When mounting the beaing, apply gease with molybenum isulfie o EP gease. (Apply oil if the beaing is the oil lubicate type) Scuffing on olling mill oll neck Inne ing boe suface of fou-ow tapee olle beaing (8) Seizue iscoloation, efomation, an melting cause by heat of beaing 1) Impope lubication (insufficient o egae lubicant) 2) Ingess of wate ue to faulty sealing 3) Excessive axial loa 4) Heat geneate by ceep of inne ing 5) Ingess of usts o foeign mattes 6) Excessively small beaing intenal cleaance 1) Reviewing sealing type an conitions 2) Reviewing lubicating metho an lubicant, an checking lubicate conition 3) Check fo axial loa 4) Reviewing beaing (type, size, etc.) 5) Reviewing cleaance 6) Confiming opeating conitions Rolling contact suface of ouble-ow tapee olle beaing Rolle lage en face of ouble-ow tapee olle beaing Inne ing of ouble-ow tapee olle beaing 82 83

45 7. Examples of failues Table 7-1 (8) eaing failues, causes an countemeasues Failues Chaacteistics amages Causes Countemeasues (9) Failue in lubication Gease incluing lage quantity of wate mixe in 1) Opeate at high tempeatue Gease is cabonize. 2) Ingess of wate ue to impope sealing o wea o amage of seal lip In this example, 2% o moe of wate is mixe in gease. 1) Fin the cause of high tempeatue. If the tempeatue cannot be lowee, eview the possibility of change to high tempeatue gease. 2) Checking wea o amage of seal lip Fin the cause of an countemeasue against the impope sealing. Inne ing assembly of fou-ow tapee olle beaing Foeign matte attachment an coosion occu because of ingess of a geat eal of foeign mattes (scale an wate fo olling). 1) Ingess of wate ue to impope sealing o wea o amage of seal lip 1) Checking wea o amage of seal lip Fin the cause of an countemeasue against the impope sealing. Inne ing assembly of ouble-ow tapee olle beaing Oute ing of ouble-ow tapee olle beaing Seizue an ahesion of aceway, olle, an cage 1) Vaie factos incluing impope lubication, impope opeation, an ingess of foeign mattes occu, causing amages. 1) Checking impope opeation 2) Checking lubicating conitions 3) Checking egaation of peipheal pats Fou-ow tapee olle beaing Looseness an beaking of pin 1) Abnomal loa ue to vibation occus. 2) En of cage's sevice life because of use fo a long peio 1) Checking abnomal vibation 2) Replace if it has been use fo a long peio. Oute ing assembly of fou-ow cylinical olle beaing Oute ing assembly of fou-ow cylinical olle beaing 84 85

46 eaing specification tables

47 esign 1 esign 2 esign 3 esign 4 esign 5 eep goove ball beaings can accommoate aial loa an axial loa in both iections. Suitable fo opeation at high spee, with low vibation. ounay imensions The imensions of stana seies ae as specifie in JIS Toleances As specifie in JIS 1514, class o 6 (efe to Table 2-2 on page 18.) Allowable misalignment.2 3 a (8 ).3 4 a (12 ) Raial intenal cleaance (efe to Table 4-2 on page 5) Stana cages Pesse cage (esign 1) o machine cage (esign 2 to 5). Equivalent aial loa ynamic equivalent aial loa P = XF + YF a Static equivalent aial loa P =.6F +.5Fa when the value of P < F, P = F f F a C e X F a F e Y X 1.56 F a F > e Y Facto f is shown in the beaing specification table

48 Single-ow eep goove ball beaings 1 ~ 13 mm ípóòê[çaãþéðéû 14 ~ (18) mm a a a a esign 1 esign 2 esign 3 esign 4 esign 5 min. C u min. max. max. (Refe.) ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a min. C u min. max. max. (Refe.) A S322333A S

49 Single-ow eep goove ball beaings (18) ~ (22) mm (22) ~ (28) mm a a a a esign 1 esign 2 esign 3 esign 4 esign 5 min. C u min. max. max. (Refe.) ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a min. C u min. max. max. (Refe.) S S A S S4432A A S S S534A S S S A

50 Single-ow eep goove ball beaings (28) ~ 34 mm 36 ~ (46) mm a a a a esign 1 esign 2 esign 3 esign 4 esign 5 min. C u min. max. max. (Refe.) ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a min. C u min. max. max. (Refe.) S S S S S S S6445A S S S S S S S S872A S S8862A S S

51 Single-ow eep goove ball beaings (46) ~ (67) mm (67) ~ 1 mm a a a a esign 1 esign 2 esign 3 esign 4 esign 5 min. C u min. max. max. (Refe.) ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a min. C u min. max. max. (Refe.) / / / S / / S / / S S59A / / S S61A S61C S / / / / S / / S S / / / / S / / S85A S / / S S93A / / / S

52 Single-ow eep goove ball beaings 1 6 ~ 1 42 mm a a a a esign 1 esign 2 esign 3 esign 4 esign 5 ounay imensions asic loa atings Fatigue Facto Mounting imensions (kn) loa limit esign eaing No. (kn) C C f a a a min. C u min. max. max. (Refe.) / S S11A / S S / / S

53 ( Single-ow, matche pai (page 14) esign 1 esign 1-1 esign 2 esign 2-1 esign 2-2 esign 3 (ack-to-back aangement) F (Face-to-face aangement) ( ouble-ow (page 116) esign 1 esign 1-1 esign 2 Single-ow beaings can accommoate aial loa an axial loa in one iection. an F matche pai beaings an oubleow beaings can accommoate aial loa an axial loa in both iections. Two o moe single-ow angula contact ball beaings ae often combine in oe to incease the loa ating o igiity. In this case, two types of aangements, back-to-back aangement () an face-to-face aangement (F), ae available. If the loa ating of a single-ow angula contact ball beaing is insufficient, use the tanem aangement (T). ounay imensions The imensions of stana seies ae as specifie in JIS Toleances As specifie in JIS 1514, class o 6. (efe to Table 2-2 on page 18.) Contact angle (α) Allowable misalignment The stana contact angles ae 15, 3 an 4. eaings with a smalle contact angle ae moe suitable fo applications involving high-spee otation. Those with a lage contact angle featue supeio axial loa esistance. (The stana contact angles of single-ow an matche pai angula contact ball beaings) 15 supplementay coe C 3 supplementay coe A o no inication 4 supplementay coe [Note] Contact angles of ouble-ow angula contact ball beaings ae shown in specification tables. Single-ow. 6 a (2') : Matche pai, ouble-ow misalignment not allowe Intenal cleaance (efe to Table 4-3 on pages 5 an 51) Stana cages Machine cage 1 11

54 Equivalent aial loa Singleow an matche pai angula contact ball beaings ynamic equivalent aial loa P = XF + YF a Contact angle i f F a C e Single-ow an ack-to-back () an tanem (T) aangement face-to-face (F) aangement F a F X Y e F a F > e X Y F a F e X Y F a F > e X Y ynamic equivalent loa calculation : when a pai of single-ow angula contact ball beaings is aange face-to-face o back-to-back. While aial loas F A an F ae applie to beaings A an, axial loa K a extenally acts in the iections shown in the figues below. [Remak] When aial loa is applie to a single-ow angula contact ball beaing, axial loa geneate as an axial component of foce acts on anothe beaing. The axial loa can be obtaine by the following equation. F a = F 2Y α = Paie mounting Loaing conition eaing Axial loa ynamic equivalent loa α = 3 α = Fo i, use 2 fo & F an 1 fo single & T. Facto f is shown in the beaing specification table ack-to-back aangement A F A K a F F 2Y + K a F A 2Y A eaing A eaing F 2Y + K a P A = XF A + Y A F + K a 2Y P A = F A, whee P A < F A P = F oubleow angula contact ball beaings Static equivalent aial loa P = XF + YFa In efeence to single-ow an tanem aangement beaings, when P < F P = F ynamic equivalent aial loa P = XF + YF a Static equivalent aial loa P = X F + Y F a Contact angle α = 15 α = 3 α = 4 Contact angle α = 3 α = 32 Single-ow an tanem (T) aangement ack-to-back () an face-to-face (F) aangement X Y X Y e.8.86 Contact angle α = 3 α = 32 F a F X 1 1 e Y X Y F a > e F X Y Face-to-face aangement F K a A F A ack-to-back aangement A F A K a K a A F Face-to-face aangement F 2Y + K a < F 2Y F 2Y > F A 2Y A F A 2Y A F A 2Y A + K a + K a eaing A eaing eaing A eaing eaing A F A 2Y A K a F A + K 2Y a A F 2Y K a P A = F A P = XF + Y F A K a 2Y A P = F, whee P < F P A = F A P = XF + Y F A + K a 2Y A P = F, whee P < F P A = XF A + Y A F K a 2Y P A = F A, whee P A < F A F F A eaing P = F [Remaks] 1. These equations can be use when intenal cleaance an peloa uing opeation ae zeo. 2. Raial loa is teate as positive in the calculation, if it is applie in a iection opposite that shown in Fig. above 12 13

55 Single-ow, matche pai angula contact ball beaings 1 ~ (13) mm ípóòåeëgçáç¼éaéìéméöéâãþéðéû C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max F F F F F F F F F F F F F F F F F F F F F F F F F F F F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea 14 15

56 Single-ow, matche pai angula contact ball beaings (13) ~ (16) mm C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max F F F F F F F F F AC2922 AC2922 AC2922F F F AC321 AC F F AC32335 AC F F F F AC3222 AC F F AC AC AC322333F F F F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea 16 17

57 Single-ow, matche pai angula contact ball beaings (16) ~ (19) mm C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max F F F F F AC AC AC342538F AC AC AC342538F F F F F F F AC3524 AC F F AC3626 AC3626 AC3626F AC3626 AC3626 AC3626F AC3627 AC F F F F F AC AC SP AC382635A AC382635A AC382635AF F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea 18 19

58 Single-ow, matche pai angula contact ball beaings (19) ~ 23 mm C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max SP AC AC AC382733F F F F F F AC428 AC428 AC428F F F AC429 AC429 AC429F AC43146 AC42146 AC43146F F F F F F F AC423 AC423 AC423F AC443 AC AC AC AC443138F AC AC AC443246F F F F AC4446 AC4446 AC4446F AC4632 AC4632 AC4632F AC4634 AC4634 AC4634F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea

59 Single-ow, matche pai angula contact ball beaings 24 ~ 3 mm C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max F F AC4833 AC4833 AC4833F F F AC534 AC AC53546 AC53546 AC53546F F F AC AC AC523746F AC5238 AC5238 AC5238F F F AC5438 AC5438 AC5438F F F SP AC563946A AC563946A AC563946AF AC564 AC564 AC564F F F AC5738 AC5738 AC5738F AC5738 AC5738 AC5738F AC AC AC584156F AC5842 AC5842 AC5842F AC64245 AC64256 AC64256F F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea

60 Single-ow, matche pai angula contact ball beaings 31 ~ 67 mm C 1 2C a b a a a b a 1 a 2 a a b a a b a ack-to-back Face-to-face esign 1 F esign 2 ack-to-back Face-to-face F esign 3 ack-to-back ounay imensions asic loa atings (kn) Fatigue loa limit (kn) eaing No. Loa cente Mounting imensions (Refe.) Single ow Matche pai C u esign Single ow 1) Single ow C 1 ack-to-back Face-to-face C C C C (Single ow) (Matche pai) a a 1 a a b a b a b 2 min. min. F min. min. max. max. max. max AC62436 AC62436 AC62436F AC AC AC644556F AC6848 AC6848 AC6848F AC756 AC756 AC756F AC7251 AC7251 AC7251F AC AC AC725482F F AC7652A AC7652A AC7652AF AC7654 AC7654 AC7654F AC856 AC856 AC856F AC8456 AC8456 AC8456F /5 78/5 78/5F /53 7/53 7/53F /56 79/56 79/56F /67 79/67 79/67F [Note] 1) SP inicates the specially chamfee fom. [Remak] a 1, a 2 : Loa cente spea

61 ouble-ow angula contact ball beaings 12 ~ 28 mm ï óòéaéìéméöéâãþéðéû a a a 1 a 2 a a esign 1 esign 2 ounay imensions asic loa atings Fatigue eaing No. 1) Loa cente Mounting imensions (Refe.) (kn) loa limit esign spea (kn) C C Open a 1, a a a a 2 min. C u min. max. max AC / A AC [Note] 1) eaing No an inicate nominal contact angle of 32. eaing No. 2AC2419, , , an 2AC inicate nominal contact angle of 4, an nominal contact angle of othe beaings is 3. [Remak] 1) Some of these beaings have lubication gooves o lubication holes on thei oute ings

62 ( Single-ow (page 124) NU type NJ type NUP type N type NF type Cylinical olle beaings featue high aial loa capacity because the olles an aceway ae in linea contact. These beaings ae suitable fo applications that involve heavy aial an impact loaing. They ae appopiate fo high-spee applications in that they can be machine vey accuately ue to thei stuctue. The NU an N types exhibit thei best pefomance when use as fee sie beaings since they ajust to the shaft's axial movement, to a cetain extent, elative to the housing position. The NJ an NF types cay axial loa in one iection, while the NUP type can cay a cetain egee of axial loa in both iections. esign 1 esign 1-P ( ouble-ow (page 138) NN type NN K type NN W type esign 1 esign 1-P Tapee boe With lubication goove an lubication hole NNU type NNU K type NNU W type ouble-ow cylinical olle beaings come in two types : with a cylinical boe, an with a tapee boe. As fo those with a tapee boe, the specifie amount of cleaance can be obtaine by ajusting the pess-in istance. Some beaings have lubication holes an lubication gooves on the oute ing. They ae ientifie by supplementay coe "W". esign 2 esign 2-P Tapee boe With lubication goove an lubication hole

63 ( Fou-ow Cylinical boe (page 146) Oute ing with ib Oute ing with loose ib One inne ing esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P Two inne ings esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 esign 2-5P esign 2-6P Oil mist lubication esign 3-1 esign 3-1P esign 3-2P Fou-ow cylinical olle beaings, having supeio esistance to aial loa, ae suitable fo use at a high-spee. Since the inne ing aceway suface an the oll can be finishe simultaneously afte the inne ing is mounte on the oll neck (the inne ing aceway suface is goune by a oll gining machine, an then, the oll bael is finishe base on the goune suface), olling accuacy is impove. Aitionally, esiual cleaance of the beaing can be ajuste feely. Some fou-ow cylinical olle beaings have nozzle holes an O-ings fo oil mist lubication. ( Fou-ow Tapee boe (page 172) esign 1-1 esign 1-2 esign 1-3P esign 1-4 esign 2-2 esign

64 ounay imensions The imensions of stana seies ae as specifie in JIS Toleances As specifie in JIS Single-ow, ouble-ow an fou-ow cylinical boe beaings Classes, 6 an 5 Fou-ow tapee boe beaings Classes an 6 (efe to Table 2-2 on page 18) Allowable misalignment Toleances of olle set boe iamete F w an olle set outsie iamete E w of intechangeable beaings Unit : μm Nominal boe iamete [Remak] Intechangeable beaings have an inne ing with olles that can be matche with the oute ing, o an oute ing with olles that can be matche with the inne ing, without affecting pefomance in the beaing that has the same beaing numbe in one categoy. Allowable misalignment of single-ow cylinical olle beaings epens on beaing type an specification. Geneal values ae as follows : 1) When P / C is appox. 1% une loa of nomal use. 6 a (2 ). 9 a (3 ) 2) When P / C is appox. 6% une loa lighte than 1).1 2 a (4 ) When vey lage allowable misalignment is equie, consult with JTEKT. Raial intenal cleaance (efe to Table 4-4 on pages 51 an 52) Rolle set boe iamete eviation 3 Fw Rolle set outsie iamete eviation 3 Ew ove up to uppe lowe uppe lowe Stana cages Equivalent aial loa Allowable axial loa Machine cage o pin type cage ynamic equivalent aial loa P = F Static equivalent aial loa P = F Cylinical olle beaings with ibs, incluing loose ib, on both inne an oute ings accommoate axial loa to a cetain extent. In such cases, axial loa capacity is contolle by the conition of olle en faces, foms of ib o loose ib, lubication, otational spee etc. Fo cetain special uses, a esign is available to accommoate vey heavy axial loas. In geneal, axial loas allowable fo cylinical olle beaings can be calculate using the following equation, which ae base on empiical ata. f p F 2 ap = 9.8 f a f b f p m whee : F ap : maximum allowable axial loa fa : coefficient etemine fom loaing conition (see below) f b : coefficient etemine fom beaing iamete seies (see below) fp : coefficient fo ib suface pessue (see below).16.1 m : mean value of boe iamete an outsie iamete Loaing conition Continuous loaing 1 Intemittent loaing 2 Instantaneous loaing 3 Oil lubication = Gease lubication (mn < ) Gease lubication f a Oil lubication iamete seies Value mn ( 1 3 ) Relationship between coefficient f p an value mn (n : otational spee, min 1 ) ( ) + 2 f b N mm

65 Single-ow cylinical olle beaings 1 ~ (12) mm ípóòâ~ìõç±çîéðéû 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) NU12 1, N22 4, (3.38) NU22R 1~ NU222 1~ NU222R 1~ NU N32 4, (7.59) NU32R 1~ NU232 1~ NU232R 1~ NU NU121 1, N221 4, (4.44) N321 4, (8.68) NU2321 1, NU122 1, N222 4, (5.24) NU222R 1~ NU2222 1~ NU2222R 1~ NU N322 4, (1.4) NU322R 1~ NU2322 1~ NU2322R 1~ NU NU124 1, [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When "4, 5" is on "esign" column, efe to beaing numbes of N type beaings. When two o moe numbes fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

66 Single-ow cylinical olle beaings (12) ~ (14) mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) N224 4, (6.31) NU224R 1~ NU2224 1~ NU2224R 1~ NU N324 4, (13.1) NU324R 1~ NU2324 1~ NU NU126 1, N226 4, (7.21) NU226R 1~ NU2226 1~ NU2226R 1~ NU N326 4, (16.4) NU326R 1~ NU2326 1~ NU2326R 1~ NU NU NU128 1, N228 4, (8.78) NU228R 1~ NU2228 1~ NU2228R 1~ N328 4, (21.8) NU328R 1~ [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When "4, 5" is on "esign" column, efe to beaing numbes of N type beaings. When two o moe numbes fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

67 Single-ow cylinical olle beaings (14) ~ (17) mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) NU2328 1~ NU2328R 1~ NU13 1, N23 4, (11.1) NU23R 1~ NU223 1~ NU223R 1~ N33 4, (25.6) NU33R 1~ NU233 1~ NU233R 1~ NU NU1932 2, NU NU132 1, NU N232 4, (13.9) NU232R 1~ NU2232 1~ NU2232R 1~ N332 4, (3.2) NU332R 1~ NU2332 1~ NU2332R 1~ NU NU134 1, NU [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When "4, 5" is on "esign" column, efe to beaing numbes of N type beaings. When two o moe numbes fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

68 Single-ow cylinical olle beaings (17) ~ (2) mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) N234 4, (17.2) NU2234 1~ NU2234R 1~ NU334 1~ NU2334 1~ NU136 1, N236 4, (18.) NU236R 1~ NU2236 1~ NU2236R 1~ NU NU336 1~ NU2336 1~ NU NU138 1, N238 4, (21.5) NU238R 1~ NU2238 1~ NU NU338 1~ NU2338 1~ NU NU14 1, N24 4, (25.7) NU24R 1~ NU224 1~ NU224R 1~ [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When "4, 5" is on "esign" column, efe to beaing numbes of N type beaings. When two o moe numbes fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

69 Single-ow cylinical olle beaings (2) ~ (28) mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) NU34 1~ NU234 1~ NU NU144 1, NU NU244 1~ NU2244 1, NU NU344 1~ NU2344 1, NU NU148 1, NU NU248 1~ NU2248 1, NU NU348 1~ NU2348 1, NU NU NU152 1, NU252 1~ NU2252 1, NU NU NU NU156 1, [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When two "4, o 5" moe is on numbes "esign" fo column, beaings efe othe to than beaing that ae numbes on "esign" of N columns, type beaings. efe to beaing When numbes two o moe of NU numbes type beaings. fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

70 Single-ow cylinical olle beaings (28) ~ 48 mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) NU256 1~ NU NU196 1, NU16 1, NU26 1~ NU164 1, NU264 1~ NU NU NU NU2968 1, NU168 1~ NU NU NU NU172 1, NU NU NU176 1, NU18 1, NU NU184 1, NU NU [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When two "4, o 5" moe is on numbes "esign" fo column, beaings efe othe to than beaing that ae numbes on "esign" of N columns, type beaings. efe to beaing When numbes two o moe of NU numbes type beaings. fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

71 Single-ow cylinical olle beaings 5 ~ 85 mm 1 1 a a a a b b a F w F w F w E w E w a b b c a b b a b NU type NJ type NUP type N type NF type esign 1 esign 2 esign 3 esign 4 esign 5 esign 1-P esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. 1) esign 1 (kn) F w E w C C a b c a b a b min. min. C u min. min. max. min. min. max. max. min. max. max. (Refe.) NU (N) NU18/ NU38/ NU19/5 1-P NU29/5 1-P NU1/5 1-P NU19/ NU29/53 1-P NU19/ NU29/56 2-P NU19/6 1-P NU28/ NU19/63 1-P NU18/67 1-P, 2-P NU28/ NU19/85 1-P [Note] 1) Fo beaings othe than NU type beaings (NJ, NUP, N, an NF types), use NJ, NUP, N, an NF fo beaing numbe instea of supplementay coe NU. Fo example, beaing numbe of a N type beaing having the same imensions as NU23 is N23. When two "4, o 5" moe is on numbes "esign" fo column, beaings efe othe to than beaing that ae numbes on "esign" of N columns, type beaings. efe to beaing When numbes two o moe of NU numbes type beaings. fo beaings othe than that ae on "esign" columns, efe to beaing numbes of NU type beaings

72 ouble-ow cylinical olle beaings 1 ~ 2 mm ï óòâ~ìõç±çîéðéû a a a E w F w a a a a b Tape 1/12 Tape 1/12 Cylinical boe Tapee boe Cylinical boe Tapee boe esign 1 (NN type) esign 2 (NNU type) esign 2-P (NNU type) ounay imensions asic loa atings Fatigue eaing No. Mounting imensions (kn) loa limit NN NNU esign (kn) Cylinical Cylinical F w E w C C boe boe (Refe.) a b a a Cylinical boe min. C u min. max. min. max. min. max NNU NN NN NNU NN NNU NN NNU NN NNU NN NNU NN NNU NN NNU NN NN NNU NN NNU NN NN [Remak] The beaing numbe of the tapee boe type beaing is suffixe by K

73 ouble-ow cylinical olle beaings 22 ~ 41 mm a a a E w F w a a a a b Tape 1/12 Tape 1/12 Cylinical boe Tapee boe Cylinical boe Tapee boe esign 1 (NN type) esign 2 (NNU type) esign 2-P (NNU type) ounay imensions asic loa atings Fatigue eaing No. Mounting imensions (kn) loa limit NN NNU esign (kn) Cylinical Cylinical F w E w C C boe boe NNU NNU NNU NN NNU NNU NNU NN NNU NN NN NNU NNU NNU NNU NN NNU NNU P NN NNU573 2-P NN NNU617 2-P NNU C622 2-P (Refe.) a b a a Cylinical boe min. C u min. max. min. max. min. max. [Remak] The beaing numbe of the tapee boe type beaing is suffixe by K

74 ouble-ow cylinical olle beaings 42 ~ (67) mm a a a E w F w a a a a b Tape 1/12 Tape 1/12 Cylinical boe Tapee boe Cylinical boe Tapee boe esign 1 (NN type) esign 2 (NNU type) esign 2-P (NNU type) ounay imensions asic loa atings Fatigue eaing No. Mounting imensions (kn) loa limit NN NNU esign (kn) Cylinical Cylinical F w E w C C boe boe NNU C622 2-P NN NNU C P NNU C P NNU488A NNU P NNU NNU P C6717A 2-P NNU P C7227A 2-P C723 2-P C P C P NNU49/ NNU49/ NN3/ NNU48/ C P NNU49/67 2-P (Refe.) a b a a Cylinical boe min. C u min. max. min. max. min. max. [Remak] The beaing numbe of the tapee boe type beaing is suffixe by K

75 ouble-ow cylinical olle beaings (67) ~ 71 mm a a a E w F w a a a a b Tape 1/12 Tape 1/12 Cylinical boe Tapee boe Cylinical boe Tapee boe esign 1 (NN type) esign 2 (NNU type) esign 2-P (NNU type) ounay imensions asic loa atings Fatigue eaing No. Mounting imensions (kn) loa limit NN NNU esign (kn) Cylinical Cylinical F w E w C C boe boe NNU P NNU49/71 2-P (Refe.) a b a a Cylinical boe min. C u min. max. min. max. min. max. [Remak] The beaing numbe of the tapee boe type beaing is suffixe by K

76 Fou-ow cylinical olle beaings 1 ~ (16) mm élóòâ~ìõç±çîéðéû C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC FC FC esign 2-5P esign 2-6P FC FC CR FC FC FC FC FC19119W FC FC FC FC FC FC FC2215A esign 3-1 esign 3-2P esign 3-1P FC FC FC2317A a a [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

77 Fou-ow cylinical olle beaings (16) ~ (2) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC FC2318A FC2412W FC esign 2-5P esign 2-6P FC FC24156A FC FC FC FC FC FC FC25156A W FC FC FC FC FC2717A FC FC esign 3-1 esign 3-2P esign 3-1P FC FC28152W [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension 1. a a

78 Fou-ow cylinical olle beaings (2) ~ (24) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC FC FC2819A FC FC FC esign 2-5P esign 2-6P FC FC FC FC315W A FC31192W FC31225A FC FC FC3418A A FC FC esign 3-1 esign 3-2P esign 3-1P /1Y FC FC3322W FC3325W a a [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

79 Fou-ow cylinical olle beaings (24) ~ (29) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC FC FC esign 2-5P esign 2-6P FC FC36192W FC FC3623CW FC FC FC37268W A FC FC37234A FC FC FC3817W A C FC esign 3-1 esign 3-2P esign 3-1P FC FC39275J FC P a a FC [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

80 Fou-ow cylinical olle beaings (29) ~ (34) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC418W FC FC FC43A FC FC CR3 3-2P FC423W FC423L-2 2-6P FC423W esign 2-5P esign 2-6P FC FC FC FC4423/ CR FC FC4524CW FC4634A FC P A 2-6P FC442AW FC442W FC esign 3-1 esign 3-2P esign 3-1P FC FC4638W a a FC4525W FC4525W [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

81 Fou-ow cylinical olle beaings (34) ~ 39 mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) SP FC SP FC P FC4835L 3-2P SP FC4835N 2-6P FC FC493A esign 2-5P esign 2-6P FC46254W FC P FC FC FC FC P FC P FC524W FC544A FC P FC FC FC P FC5434W FC P FC P esign 3-1 esign 3-2P esign 3-1P FC544W 2-6P FC544W 3-2P a a SP FC554AW [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

82 Fou-ow cylinical olle beaings 4 ~ mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC5225W FC P CR4 3-2P FC P FC P esign 2-5P esign 2-6P FC613W FC FC P FC641A 2-6P FC P FC FC FC CR42A 3-1P FC P FC P FC5942A FC P FC5927W CR44 3-1P FC6245AW 2-6P esign 3-1 esign 3-2P esign 3-1P FC P FC P a a FC P [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

83 Fou-ow cylinical olle beaings 445 ~ 5 mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) CR P FC6345A SP FC CR46C 3-1P FC624W 1-6P FC FC6547W 1-6P CR46 3-1P FC P CR46 3-1P esign 2-5P esign 2-6P FC P FC P FC P CR48 3-1P CR48 3-2P FC685A 2-6P SP SP FC SP FC6745A-3 2-6P FC P FC P FC6951A 3-2P FC P FC P esign 3-1 esign 3-2P esign 3-1P FC P FC7253C 2-6P FC7253W 3-2P [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension 1. a a

84 Fou-ow cylinical olle beaings 51 ~ (6) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC P FC P FC6845W 2-6P FC P FC74535C 3-2P esign 2-5P esign 2-6P SP FC7652A 2-6P FC P FC P SP FC76559AW 2-6P CR P FC P FC P FC86 2-6P FC P FC8514A 2-6P FC P FC81594A 2-6P SP FC P esign 3-1 esign 3-2P esign 3-1P FC P FC82575C 3-2P FC P SP FC8754A 2-6P FC P CR6 3-1P a a [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

85 Fou-ow cylinical olle beaings (6) ~ 73 mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) CR6A 2-6P CR6 2-6P FC P FC P esign 2-5P esign 2-6P FC P FC P FC P FC9267A 2-6P FC P FC8244W FC P SP FC P SP CR68 3-2P FC P FC P FC9875A 2-6P FC P FC987A 3-2P FC987C 2-6P FC171W 2-6P esign 3-1 esign 3-2P esign 3-1P FC P a a FC P FC P [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

86 Fou-ow cylinical olle beaings 75 ~ (85) mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC P FC P FC1775A 3-2P esign 2-5P esign 2-6P FC P FC P FC P FC P CR76 3-1P FC18787C 2-6P FC1178A 2-6P FC P FC P FC1877A 2-6P FC P FC1778A 2-6P FC P FC P FC P FC1138A 3-2P FC P esign 3-1 esign 3-2P esign 3-1P FC P a a FC P FC P [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

87 Fou-ow cylinical olle beaings (85) ~ 1 mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC P FC P CR85A 3-1P FC P FC P esign 2-5P esign 2-6P FC P FC P FC P FC P FC P SP FC P FC P FC12385A 2-6P FC P FC12284A 2-6P FC P FC12387A 3-1P FC P FC P FC P CR92 3-1P CR92A 3-2P esign 3-1 esign 3-2P esign 3-1P CR95A 3-1P FC P a a FC P [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

88 Fou-ow cylinical olle beaings 1 2 ~ 1 48 mm C 1 F w esign 1-1 esign 1-2 esign 1-3 esign 1-4 esign 1-6P esign 2-1P esign 2-2 esign 2-2P esign 2-3 esign 2-4 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign C F 1) 1) 2) 1) 1) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max. (Refe.) FC P FC1686A 2-6P FC P esign 2-5P esign 2-6P FC P FC P [Notes] [Note] 1) 1) a SP inicates housing the specially chamfe chamfee imension fom. coesponing to oute ing chamfe imension. 2) b a inicates the housing shaft chamfe imension coesponing to oute inne ing chamfe imension. 1. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension 1. esign 3-1 esign 3-1P esign 3-2P a a

89 Fou-ow cylinical olle beaings (tapee boe) ~ 855 mm élóòâ~ìõç±çîéðéûåiéeå[épåäåj 1 1 F w esign 1-1 esign 1-2 esign 1-3P esign 1-4 esign 2-2 esign 2-3 ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign 1 F 1) 2) 2) 1 (kn) w C C a a a b min. min. C u min. max. min. max. max FC2317AK a A SP FC4935WK a a FC554K FC6345KW FC171K 1-3P FC1271K 1-3P FC11875AK 1-3P [Notes] 1) SP inicates the specially chamfee fom. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

90 ( 99, W99, SW99 seies ( 99 seies This type has high aial loa capacity, an so, is suite to heavy uty applications o whee shock loaing is expecte. Oute ing is available eithe with o without ibs, eithe of which is povie with two lubication holes. Some beaings have fou lubication holes. esign 1 esign 2 esign 3 ( T99 seies Fo line shaft This is a type equivalent to the above beaing except fo extene inne ing povie with a key way. Applicable to such applications whee lage axial movement of the inne ing is involve, an mainly use fo line shafts of olling mill table olles. esign 4 esign 5 Toleances Consult with JTEKT, as beaings ae manufactue at special toleance coesponing to each application of beaing. Toleances geneally coespon to class o class 6 specifie in JIS 1514 (See Table 2-2 given on page 18). Raial intenal cleaance (Refe to Table 4-4 on page 51 an 52) Equivalent aial loa ynamic equivalent aial loa P = F Static equivalent aial loa P = F

91 Wie seies cylinical olle beaings 5 ~ (15) mm θ 1 ïùçlå`â~ìõç±çîéðéû C a θ 1 K w F w E w E w n- m esign 1 esign 2 esign 3 esign 4 esign 5 K k [Note] θ = 3 θ 1 = 3 (esign 1, 2, 3) θ 1 = 45 (esign 4, 5) a a ounay imensions asic loa atings Fatigue Lubication Key way imensions Mounting imensions (kn) loa limit eaing No. esign hole C F w E 1 (kn) n-φm w C C K w K a a a k min. min. C u (qty-mm) min. max. max W9921NU W W99212NU W W W99216NU NU W9922NU T9922NU R2.1 R NU W99222NU TW99222NU T99226NU NU W99226NU TXW99228NU NU W99228NU W NU W9923NU

92 Wie seies cylinical olle beaings (15) ~ 2 mm θ 1 C a θ 1 K w F w E w E w n- m esign 1 esign 2 esign 3 esign 4 esign 5 K k [Note] θ = 3 θ 1 = 3 (esign 1, 2, 3) θ 1 = 45 (esign 4, 5) a a ounay imensions asic loa atings Fatigue Lubication Key way imensions Mounting imensions (kn) loa limit eaing No. esign hole C F w E 1 (kn) n-φm w C C K w K a a a k min. min. C u (qty-mm) min. max. max W T9923NU W TW W99236NU SW9924NU

93 ( ouble-ow, open type (page 182) ( ouble-ow, shiele type (page 186) Fixe sie Fee sie with Locating snap ing Since full complement type cylinical olle beaings can incopoate moe olles than beaings with cage, the loa ating can be incease. eaings on the fixe sie is capable of withstaning aial loa an axial loa in both iections. The shiele beaing is specially esigne fo cane sheaves ; )Pelubicate with high quality gease. )Shiel plates ae locate. (The ubbe seal can be employe accoing to the opeating conitions.) )The beaing sufaces ae coate with phosphate to pevent usting. ownay imensions As specifie in JIS Toleances As specifie in JIS 1514, class o 6. (efe to Table 2-2 on page 18.) Recommene fits an aial intenal cleaance Recommene fits: efe to Table 3-3 on pages 39 an 4. ( Fits an cleaance of full complement type cylinical olle beaings fo use with cane sheaves with the otating oute ing loa Conition Shaft toleance class Housing boe toleance class M 7 N 7 P 7 Rotating oute ing loa Light o fluctuating loa Nomal o heavy loa Heavy loa on thin section housing g 6 o h 6 Refe to Table 4-4 on pages 51 an 52. As fo the nominal boe ia. up to 14 mm shiele type (C5 seies), the coesponing CN cleaance ae shown below. Nominal boe ia. CN cleaance (µm) ove up to min. max Allowable axial loa Equivalent aial loa The above fixe sie beaings whose inne an oute ings have ibs can accommoate a cetain magnitue of axial loa. As fo the equation to calculate allowable axial loa in this case, efe to page 123. ynamic equivalent aial loa P = F Static equivalent aial loa P = F

94 Full complement cylinical olle beaings fo cane sheaves ouble-ow, open type 5 ~ (2) mm P n- ÉVÅ[ÉuópëçDZÇÎå`â~ìõDZÇÎéðéÛ äjïžå` S a a a a Fixe sie Fee sie ounay imensions asic loa atings Fatigue eaing No. Lubication holes Mounting imensions S 1) (kn) loa limit (kn) n 1 2 C C Fixe sie Fee sie P a a a min. C u qty min. max. max C491AVW C491VW C4912AVW C4912VW C4914AVW C4914VW C4916AVW C4916VW C4918AVW C4918VW C492AVW C492VW C4922AVW C4922VW C4924AVW C4924VW C4926AVW C4926VW C4928AVW C4928VW C483AVW C483VW C493AVW C493VW C4832AVW C4832VW C4932AVW C4932VW C4834AVW C4834VW C4934AVW C4934VW C4836AVW C4836VW C4936AVW C4936VW C4838AVW C4838VW C4938AVW C4938VW C484AVW C484VW [Note] 1) Effective movement of the beaing on the fee sie in an axial iection

95 Full complement cylinical olle beaings fo cane sheaves ouble-ow, open type (2) ~ 4 mm P S n- a a a a Fixe sie Fee sie ounay imensions asic loa atings Fatigue eaing No. Lubication holes Mounting imensions S 1) (kn) loa limit (kn) n 1 2 C C Fixe sie Fee sie P a a a min. C u qty min. max. max C494AVW C494VW C4844AVW C4844VW C4944AVW C4944VW C4848AVW C4848VW C4948AVW C4948VW C4852AVW C4852VW C4952AVW C4952VW C4856AVW C4856VW C4956AVW C4956VW C486AVW C486VW C496AVW C496VW C4864AVW C4864VW C4868AVW C4868VW C4968AVW C4968VW C4872AVW C4872VW C4972AVW C4972VW C4876AVW C4876VW C4976AVW C4976VW C498AVW C498VW [Note] 1) Effective movement of the beaing on the fee sie in an axial iection

96 Full complement cylinical olle beaings fo cane sheaves ouble-ow, shiele type 4 ~ 15 mm ÉVÅ[ÉuópëçDZÇÎå`â~ìõDZÇÎéðéÛ ñßïïå` 3 C C 3 3 C C 2 t t t S C 1 f x a esign 1 esign 2 esign 3 With locating snap ings E ounay imensions asic loa atings Fatigue eaing No. Locating snap ing specifications Mounting imensions (Refe.) (kn) loa limit esign (kn) Without locating With locating C t C C C 1) a x snap ings snap ings 1 S E f C 2) min. C 2 u min. min C58N C58NR C59N C59NR C51N C51NR C511N C511NR C512N C512NR C513N C513NR C514N C514NR C515N C515NR C516N C516NR C517N C517NR C518N C518NR C519N C519NR C52N C52NR C522N C522NR C524N C524NR C526N C526NR C528N C528NR C53N C53NR [Notes] 1) imensional toleance of C1 is +.4/ when boe iamete is not moe than 17 mm, while +.6/ when boe iamete is ove 17 mm. 2) imensional toleance of C2 is.1/.5 when boe iamete is not moe than 17 mm, while.1/.7 when boe iamete is ove 17 mm

97 Full complement cylinical olle beaings fo cane sheaves ouble-ow, shiele type 16 ~ 38 mm 3 C C 3 3 C C 2 t t t S C 1 f x a esign 1 esign 2 esign 3 With locating snap ings E ounay imensions asic loa atings Fatigue eaing No. Locating snap ing specifications Mounting imensions (Refe.) (kn) loa limit esign (kn) Without locating With locating C t C C C 1) a x snap ings snap ings 1 S E f C 2) min. C 2 u min. min C532N C532NR C534N C534NR C536N C536NR C538N C538NR C54N C54NR C544N C544NR C548N C548NR C552N C552NR C556N C556NR C C C C [Notes] 1) imensional toleance of C1 is +.4/ when boe iamete is not moe than 17 mm, while +.6/ when boe iamete is ove 17 mm. 2) imensional toleance of C2 is.1/.5 when boe iamete is not moe than 17 mm, while.1/.7 when boe iamete is ove 17 mm

98 ( Single-ow (page 196) ( ouble-ow (Face to face) TI type (page 234) The TI type beaing is mae up of two single-ow oute ings an one ouble inne ing, an is geneally povie with an oute ing space. The beaing with oute ing space is hany fo mounting, as its en play has been pe-ajuste fo each application. The space is povie with an lubication goove an seveal lubication holes. Use fo oll neck of meium-uty olling mills, spee euces, etc. esign 1 esign 1-P esign 1 esign 1-P Able to cay aial an axial loa in one iection simultaneously. Combine aial an axial loa can be also accommoate. Suitable fo heavy loa an impact loa. The lage the contact angle (α) is, the geate the beaing esistance to axial loa. {Steep angle type α 25 (constant e.67)} Koyo tapee olle beaings whose beaing numbes ae suffixe by "J" ae pecision goun in accoance with the ISO 355 (Sub-unit, Metic Seies) specifying the oute ing with an small insie iamete as well as the contact angle, so that oute ings an inne ing assembly (inne ing, olles an cage assembly) of these beaings ae intenationally intechangeable. Contact angle (α) Oute ing small insie ia. Oute ing with ISO sub-unit specifications [Note] When supplementay coe "J" is ae as a pefix (not a suffix) to beaing numbes (e.g. JHM72249/ JHM7221), the beaings ae not esigne accoing to ISO 355. Such beaings ae calle "J seies metic tapee olle beaings," an ae pouce accoing to special toleances. α TIS type Fo axial supot (page 254) esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P The TIS type beaing is of the same constuction as the TI type, except that it has lage contact angle so that it can accommoate heavie axial loa. Use fo applications whee the axial loa is geate than the aial loa o whee only the axial loa is applie. The beaing with the key way on the inne ing is mainly use fo ollling mill oll necks. The beaing may be also use with peloa without using the oute ing space. The beaing having lubication holes an O-ings on its oute ing is use fo oil mist lubication. TIT type Tapee boe (page 264) esign 1 esign 1-P (Fo oil mist lubication) Example of key way Whee the intefeence fit is necessay, an nees to be emove fequently, the use of TIT type is convenient. It is also possible to mount the beaing on the shaft by using an aapto sleeve. Use fo oll neck of light o meium-uty olling mills an oll neck of calena mills. The use of a hyaulic unit will facilitate beaing mounting/ismounting. The oll neck tape nees to be matche to the boe iamete of beaing by using tape gauge, sign ba gauge, etc

99 ( ouble-ow (ack to back) TO, TOS type (page 268) The TO type beaing is mae up of one ouble oute ing, two single-ow inne ings an one inne ing space. The oute ing is povie with seveal lubication holes. The inne ing space has been ajuste to povie an en play suitable to each application. It is also possible to feely ajust the en play fo use by emoving the inne ing space, howeve, it equies time an labo. Suitable to case whee moment may act. Use fo spee euce, wining machine, etc. ( Fou-ow TQO type (page 318) (Fo oil mist lubication) esign 1 esign 1-P The steep angle type (TOS type) having lage contact angle has incease axial loa capacity, an is wiely use fo wom shaft of meium, heavy uty applications, thust beaing of euces etc. esign 1 esign 1-P esign 2 esign 2-P 45 type (page 352) esign 1 esign 1-P esign 2 esign 2-P esign 2 esign 2-P Seale type (page 356) TNA type (page 314) esign 1 esign 2 (with inne ing space) [Refeence] Featues of beaing with pin type cage (1) Loa ating can be incease. The pin type cage accommoates a lage numbe of olles, thus making it possible to incease the loa ating of beaing. (2) Reuce fiction esistance Fiction coefficient of pin type cage is euce, as contact aea of olle an cage is limite. The TNA type beaing has iffeent assemble with toleance fom the TO type, specially selecte fo the TNA type. (3) Easy mounting/ismounting The pin type cage is povie with a tap hole fo lifting. The use of tap hole will facilitate the wok. Use ISO metic thea fo lifting tap scew. esign 1 esign 1-P esign 2 esign 2-P The fou-ow tapee olle beaing with cylinical boe is esigne to maximize the loa capacity with minimum space, an is wiely use fo oll neck of lowe, meium spee olling mills. The beaing of this type is mae up of one ouble oute ing, two single-ow oute ings, two ouble inne ings an inne ing space/ oute ing space. Since each component is not intechangeable, it is necessay to assemble each component as specifie with cae taken to the matching maks make on the beaing. Since the intenal cleaance has been peajuste, the beaing can be use with ease without any necessity of eajustment. Since the beaing nees to be emove fequently an is cleaance-fitte to the oll neck, the inne ing space is haene to avoi wea. The lubication gooves ae povie on both sies of the inne ing space to allow the lubicant to be eaily passe to the oll neck. The lubication goove an lubication holes ae povie at the outsie iamete of ouble oute ing an oute ing space. The beaing povie with lubication holes an O-ings on the oute ing is use fo oil mist lubication. Seale type fou-ow tapee olle beaings have oil seals on thei sie faces an in between inne ings, an O-ings on thei outsie sufaces to achieve the puposes below. Reuction in fequency of isassembly, washing, an eassembly Impovement in woking envionment of isassembly, washing, an eassembly Reuction in gease consumption Impovement in ambient suouning olling mills esign 2 shows the compact oil seal type to incease the loa ating of a fou-ow tapee olle beaing. The intemeiate seal in the esign 2 has avantages below. Compact Easy isassembly, washing, an eassembly

100 [Applicable toleance fo tapee olle beaings] Single-ow ouble-ow Fou-ow Metic seies Inch seies Metic J seies Metic seies Inch seies The othes Type of tapee olle beaings 329JR, 32JR, 33JR, 331JR 32JR, 322JR, 332JR, 33JR 313JR, 323JR * Consult with JTEKT if a highe toleance class than that shown in this table is necessay. Applicable toleance* Class, class 6, class 6X, o class 5 of JIS 1514 (Refe to Table 2-3 on page 22) (56418/5665, HM125943/HM12591 etc.) Class 4, class 2 o class 3 of AMA 19 (Refe to Table 2-5 on page 26) (JHM72249/JHM7221 etc.) 452, 453, 462(A), 463(A) 46T32JR, 46T322JR, 46T33JR, 46T323JR 372, 472, 473 LM377449/LM37741, 67388/67322 EE12794/127138/ etc. 45T, 46T, 47T, 2TR, 4TR Class PK, class PN o class PC (Refe to Table 2-6 on page 28) Class of AS 12 (Refe to Table 2-4 on page 25) Class 4 of AMA 19 (Refe to Table 2-5 on page 26) Special toleances fo equie ae use in many cases. Consult with JTEKT. ynamic equivalent loa calculation : when a pai of single-ow tapee olle beaings is aange face-to-face o back-to-back. While aial loas F A an F ae applie to beaings A an, axial loa K a extenally acts in the iections shown in the figues below. [Remak] When aial loa is applie to a single-ow tapee olle beaing, axial loa geneate as an axial component of foce acts on anothe beaing. The axial loa can be obtaine by the following equation. Paie mounting Loaing conition eaing Axial loa ynamic equivalent loa ack-to-back aangement A F A K a F Face-to-face aangement A F 2Y + K a F A 2Y A eaing A eaing eaing A F 2Y F a = + K a F 2Y 1 P A = XF A + Y A F + K a 2Y P A = F A, whee P A < F A P = F P A = F A Allowable misalignment Raial intenal cleaance Stana cage Equivalent aial loa [Note] Refe to the beaing specification table fo the values of axial loa factos Y 1, Y 2, Y 3 an Y an constant e. Single-ow tapee olle beaings :. 9 a (3') (If the misalignment excees this angle size, JTEKT is eay to esign special beaings to oe.) (efe to Table 4-5 on page 53) Raial intenal cleaance of ouble-ow an fou-ow tapee olle beaings Pesse cage o pin type cage Single-ow ouble-ow fou-ow ynamic equivalent aial loa Static equivalent aial loa ynamic equivalent aial loa Static equivalent aial loa when when F a F F a F P = F P =.5F + Y F a when P < F, P = F when when F a F F a F e > e P = F + Y F a e > e P =.4F + Y 1 F a P = F + Y 2 F a P =.67F + Y 3 F a F K a F A ack-to-back aangement A F A K a K a F Face-to-face aangement F A F A F 2Y + K a < F 2Y F 2Y > F A 2Y A F A 2Y A F A 2Y A + K a + K a eaing eaing A eaing eaing A eaing [Remaks] 1. These equations can be use when intenal cleaance an peloa uing opeation ae zeo. 2. Raial loa is teate as positive in the calculation, if it is applie in a iection opposite that shown in Fig. above table. F A 2Y A K a F A + K 2Y a A F 2Y K a P = XF + Y F A K a 2Y A P = F, whee P < F P A = F A P = XF + Y F A + K a 2Y A P = F, whee P < F P A = XF A + Y A F K a 2Y P A = F A, whee P A < F A P = F

101 Single-ow tapee olle beaings 1 ~ (15) mm 1 T C Single-ow tapee olle beaings S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) JR JR JR JM72249/JM JHM72249/JHM JR JR JR JR X/ JR / L521945R/L / / / / HH221449/HH / / HH224335/HH / / / JR [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

102 Single-ow tapee olle beaings (15) ~ (114.3) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) JR JR JR JR JR / / / / / HH22434/HH LM522548/LM LM522549/LM JR JM82249/JM JR JR JHM522649/JHM JR JR JR JR / / [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

103 Single-ow tapee olle beaings (114.3) ~ (127.) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) HH224346/HH / HM92674/HM HH926744/HH HH224349/HH / / / JR JR JR JR JR JR X/9795X JR / / HM926745/HM / / / / [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2 21

104 Single-ow tapee olle beaings (127.) ~ (139.7) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) HM926747/HM / HH228349/HH HH932132/HH HM926749/HM / JR JR JR / JR JR JR JR L327249/L / / / / / / / A/ / [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

105 Single-ow tapee olle beaings (139.7) ~ (15) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) A/ HM231132/HM / HH231649/HH JR JR JR X/74846X JR JR / / / HM231136/HM / / HM23114/HM / EE1757/ HH932145/HH / HM231148/HM HM231149/HM JR JR [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

106 Single-ow tapee olle beaings (15) ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) JR JR JR / / EE176/ EE176/ EE4561/ HH23448/HH HH23448/HH H93634/H JR JR JR HM237532/HM EE11763/ / M235145/M HM237535/HM HM237535/HM HH437549/HH EE42651/ / H936349/H H936349/H [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

107 Single-ow tapee olle beaings 17 ~ (177.8) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) JR JHM534149/JHM JM734449/JM / M235149/M JR / /94113A / / / HM237542/HM H238148/H / / / M236849/M EE9172/ / HM237545/HM EE2227/ H23964/H EE2227/ EE4778/ EE4773/ [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

108 Single-ow tapee olle beaings (177.8) ~ (19.5) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) EE4271/ EE4271/ EE3571/ / JR JM736149/JM JR JR JR / / M238849/M H239649/H H239649/H JR JM738249/JM JR JR JR / / / / [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

109 Single-ow tapee olle beaings (19.5) ~ (23.2) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) HH84249/HH EE42751/ EE3575/ / L5449/L LM739749/LM LM739749/LM / / JR JHM84449/JHM JR JR JR LM241147/LM M241543/M / EE13787/ H247535/H P HH144642/HH LM241149/LM / / M241547/M [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

110 Single-ow tapee olle beaings (23.2) ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) EE13283/ / A/ EE4281/ EE4281/ EE1148/ EE388/ P LM241148/LM M241549/M / EE13284/ EE13284/ H242649/H / A/ HM743345/HM / LM742749/LM EE4285/ JR JR JR M244249/M [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

111 Single-ow tapee olle beaings ~ 24 mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) LM245833/LM LM84449/LM EE13889/ EE43888/ / EE1392/ HM746646/HM M249732/M EE439/ EE791/ EE399/ / / HM647448/HM LM545849/LM LM545849/LM / / M25233/M H247549/H P M246949/M M249736/M JR JR [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

112 Single-ow tapee olle beaings ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) / EE92395/ EE29595/ EE3995/ LL648434/LL EE12697/ / M348449/M EE17975/ EE17975/ M252337/M HH249949/HH P EE11597/ EE12698/ LL648449/LL M249749/M EE1341/ EE1341/ EE2751/ EE2751/ HM252343/HM HH258232/HH P HH953749/HH P M349547/M [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

113 Single-ow tapee olle beaings ~ (285.75) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) M349549/M M249747/M EE22118/ JR JR EE13412/ EE43512/ HM252348/HM / LM451347/LM / LM451349/LM EE27515/ H852849/H M252349/M L85349/L EE72211/ EE29511/ JR JR / [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

114 Single-ow tapee olle beaings (285.75) ~ 34 mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) LM654649/LM M255449/M L555249/L EE291175/ JR JR HM256849/HM L35749/L LM75749/LM EE29121/ EE72412/ EE29125/ HM25949/HM H961649/H P JR JR LL758744/LL L8649/L HM26149/HM JR [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

115 Single-ow tapee olle beaings ~ (381.) mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) LM361649/LM LM961548/LM EE971354/ EE161363/ EE23136/ HM262749/HM EE333137/ EE161394/ EE161394/ L163149/L EE1614/ EE1614/ EE1614/ EE2314/ EE33314/ JR HM26549/HM P EE181453/ EE321145/ EE231462/ EE231462/ L865547/L EE19215/ [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

116 Single-ow tapee olle beaings (381.) ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) LM565949/LM LM565949/LM HM266446/HM P HM266448/HM P LM665949/LM EE234154/ EE234156/ EE234156/ L467549/L EE23416/ M667944/M EE23416/ EE28516/ EE83316X/ EE73616/ EE9116/ EE57162/ M667947/M M667948/M EE911618/ M268749/M P EE241693/ [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

117 Single-ow tapee olle beaings ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) LM869448/LM EE23917/239225A EE24171/ EE57173/ EE737173/ / / M27749/M P LM77945/LM EE737179X/ EE425179A/ P L57649/L EE24418/ LM272235/LM LL771948/LL M272749/M P LM272249/LM EE24319/ EE64191/ P LM772748/LM EE64192/ P [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

118 Single-ow tapee olle beaings ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) EE243192/ EE243196/ M274149/M P EE98251/ P M276449/M P LL575349/LL L476548/L L476549/L EE84322/ P LL778149/LL EE649239/ P L879947/L EE64924/ P EE74324/ P EE74926/ P EE65527/ P LM283649/LM P L183448/L [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

119 Single-ow tapee olle beaings 762. ~ mm 1 T C S a b S b a a b a b a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Loa Mounting imensions Constant factos Axial loa esign (kn) (kn) loa limit eaing No. 1) cente T C 1 C C a b a b S a S b a b e Y 1 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u a min. max. max. min. min. min. min. max. max. (Refe.) L183449/L EE7523/ P EE77643/ P [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

120 ouble-ow tapee olle beaings TI type 1 ~ 15 mm T ouble-ow tapee olle beaings S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) / / EE15353/ / / / / H228649/H / T / T T3251A [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

121 ouble-ow tapee olle beaings TI type ~ (19) mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) M231649/M / / T / / EE917/ / HM237546/HM HM237546/HM EE287/ T T M238849/M EE22274/ H239649/H EE22274/ H239649/H T [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

122 ouble-ow tapee olle beaings TI type (19) ~ 22 mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE4275/ EE4275/ / T / / EE428/ EE428/ / H242649/H LM742749/LM LM742749/LM / / T H244849/H T T P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

123 ouble-ow tapee olle beaings TI type ~ 254. mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) M244249/M T P EE52991/ / H247549/H P T T SP SP T EE17951/ EE17951/ EE12797/ LM247748/LM EE12696/ EE22975/ HH249949/HH P EE171/ M249748/M EE171/ EE82211/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

124 ouble-ow tapee olle beaings TI type 26 ~ mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T T EE13412/ EE22125/ HM252347/HM HM252348/HM HM252348/HM LM451349/LM EE27516/ M252349/M EE27519/ EE27519/ EE135111/ HH255149/HH LM654644/LM LM654648/LM M255449/M EE33116/ EE129119/ [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

125 ouble-ow tapee olle beaings TI type 3 ~ mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) HM256849/HM HH258249/HH P EE329117/ M257149/M EE2912/ EE724121/ M257248/M EE129123/ HM858548/HM HM25949/HM T P R HM26149/HM P EE971355/ SP SP T HM262749/HM [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

126 ouble-ow tapee olle beaings TI type ~ mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) M262449/M L163149/L LM763449/LM EE23141/ P HM26549/HM P EE321146/ HM266445/HM P T P HM266449/HM P EE234157/ LM767745/LM P SP SP T P EE234161/ LM767749/LM M268749/M P EE323166/ P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

127 ouble-ow tapee olle beaings TI type 42 ~ mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) P EE93117/ P EE328172/ P EE736173/ P M27748/M P M27749/M P EE244181/ L77849/L EE737179/ M272749/M P P LM272249/LM LM772749/LM /5 1-P TR5-4 1-P TR M274149/M P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

128 ouble-ow tapee olle beaings TI type 58. ~ 67 mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE53121/ P EE42621/ P TR M275349/M P TR52C 1-P /53 1-P /53 1-P M276449/M P TR54 1-P TR555 1-P LM377449/LM P M278749/M P M2849/M281 1-P /6 1-P EE649241/ P /63 1-P M28149/M P TR635 1-P /67 1-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

129 ouble-ow tapee olle beaings TI type ~ mm T S a a 1 b a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 2) 2) 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE655271/ P TR69A 1-P EE755281/ P M38324/M P M283449/M P LM283649/LM P M284249/M P TR8A 1-P TR81A 1-P M285848/M P LM286249/LM P EE547341/ P LM287849/LM P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

130 ouble-ow tapee olle beaings fo axial suppot TIS type 1 ~ mm ï óòâ~ç²ç DZÇÎéðéÛÅiì å Ç ÅAÉAÉLÉVÉAÉãéÛÇØópÅjÅcÅcTISå` T Fo oil mist lubication S a a 1 K K w θ K w K k a b a esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P Face key way : A Face key way : oe key way ounay imensions asic loa atings (kn) Fatigue loa Constant way Axial loa factos Face key way oe key Mounting imensions Raial Axial limit (kn) eaing No. 1) esign 3) 3) 1 C T C C C C u e Y 2 Y 3 Y Type K w K θ qty Position 2) R k a a S a a b min. min. (Raial) (Axial) (eg) max. max. min. min. max. max T T T T T A SP T T T343616A T T T38321A T383211A A T A T A SP T P SP T P T443612/P SP T464318A-1 2-P A T P A T P A T [Notes] 1) Since thee ae many beaings of special toleances fo specific applications, consult with JTEKT fo etails of toleances. 2) [ 1] one face, [ 2] both face. 3) SP inicates the specially chamfee fom

131 ouble-ow tapee olle beaings fo axial suppot TIS type ~ 32 mm T Fo oil mist lubication S a a 1 K K w θ K w K k a b a esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P Face key way : A Face key way : oe key way ounay imensions asic loa atings (kn) Fatigue loa Constant way Axial loa factos Face key way oe key Mounting imensions Raial Axial limit (kn) eaing No. 1) esign 3) 3) 1 C T C C C C u e Y 2 Y 3 Y Type K w K θ qty Position 2) R k a a S a a b min. min. (Raial) (Axial) (eg) max. max. min. min. max. max T T P A T T T T64411M 1-P T64411N-1/P1 2-P C SP T SP T T P SP T P SP T SP T P SP T T P C T P T P C SP T P C T T A T SP T644816A SP T P T P [Notes] 1) Since thee ae many beaings of special toleances fo specific applications, consult with JTEKT fo etails of toleances. 2) [ 1] one face, [ 2] both face. 3) SP inicates the specially chamfee fom

132 ouble-ow tapee olle beaings fo axial suppot TIS type 33 ~ (4) mm T Fo oil mist lubication S a a 1 K K w θ K w K k a b a esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P Face key way : A Face key way : oe key way ounay imensions asic loa atings (kn) Fatigue loa Constant way Axial loa factos Face key way oe key Mounting imensions Raial Axial limit (kn) eaing No. 1) esign 3) 3) 1 C T C C C C u e Y 2 Y 3 Y Type K w K θ qty Position 2) R k a a S a a b min. min. (Raial) (Axial) (eg) max. max. min. min. max. max T A T C SP SP T P T A SP T75919A-1 1-P A SP T P A T P A T SP T735114A T75513A SP SP T P A T P T P SP T76572A 2-P A T P SP T P SP T76728A 2-P SP T SP T A SP T785718A T P T8615A T A SP TR4L 1-P [Notes] 1) Since thee ae many beaings of special toleances fo specific applications, consult with JTEKT fo etails of toleances. 2) [ 1] one face, [ 2] both face. 3) SP inicates the specially chamfee fom

133 ouble-ow tapee olle beaings fo axial suppot TIS type (4) ~ 51 mm T Fo oil mist lubication S a a 1 K K w θ K w K k a b a esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P Face key way : A Face key way : oe key way ounay imensions asic loa atings (kn) Fatigue loa Constant way Axial loa factos Face key way oe key Mounting imensions Raial Axial limit (kn) eaing No. 1) esign 3) 3) 1 C T C C C C u e Y 2 Y 3 Y Type K w K θ qty Position 2) R k a a S a a b min. min. (Raial) (Axial) (eg) max. max. min. min. max. max SP TR4L-4/P 3-P SP T A T825816A A SP T T P A SP T886516A 2-P SP T P T9823U 1-P A T P T A SP T94727A T947222/P 3-P T SP SP T P T97732C 1-P C T P A T97732J 1-P A TR5-3 2-P TR5J 1-P TR51L-1 1-P SP TR P [Notes] 1) Since thee ae many beaings of special toleances fo specific applications, consult with JTEKT fo etails of toleances. 2) [ 1] one face, [ 2] both face. 3) SP inicates the specially chamfee fom

134 ouble-ow tapee olle beaings fo axial suppot TIS type 6 ~ 9 mm T Fo oil mist lubication S a a 1 K K w θ K w K k a b a esign 1 esign 1-P esign 2 esign 2-P esign 3 esign 3-P Face key way : A Face key way : oe key way ounay imensions asic loa atings (kn) Fatigue loa Constant way Axial loa factos Face key way oe key Mounting imensions Raial Axial limit (kn) eaing No. 1) esign 3) 3) 1 C T C C C C u e Y 2 Y 3 Y Type K w K θ qty Position 2) R k a a S a a b min. min. (Raial) (Axial) (eg) max. max. min. min. max. max SP TR6-2 2-P C SP TR62 1-P TR63 2-P TR P SP TR66C SP SP TR686A 1-P SP TR686C 1-P SP TR718 1-P TR78A 1-P TR9-1 1-P [Notes] 1) Since thee ae many beaings of special toleances fo specific applications, consult with JTEKT fo etails of toleances. 2) [ 1] one face, [ 2] both face. 3) SP inicates the specially chamfee fom

135 ouble-ow tapee olle beaings (Tapee boe) TIT type 127. ~ 28. mm T ouble-ow tapee olle TIT type beaings (Tapee boe) S a a 1 a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 1 (kn) C C a a S a 2) a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max T/ T/ T/ T/ T/ T/ H234649T/H T/ HM237549T/HM EE4275T/ T/ T/ H244848T/H T/ M249746T/M EE22139T/ LM451349T/LM EE128113T/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

136 ouble-ow tapee olle beaings (Tapee boe) TIT type ~ mm T S a a 1 a a esign 1 esign 1-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T 1 (kn) C C a a S a 2) a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max M255449T/M HH258249T/HH P HM26149T/HM P HM26532T/HM P HM262746T/HM HM262749T/HM HM26549T/HM P HM266449T/HM P M268743T/M P M268749T/M P M27749T/M P M272749T/M P M274149T/M P M275349T/M P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) a inicates housing chamfe imension coesponing to oute ing chamfe imension. b inicates the shaft chamfe imension coesponing to inne ing chamfe imension

137 ouble-ow tapee olle beaings TO, TOS type 1 ~ (12) mm T C 1 ouble-ow tapee olle TO,TOS beaings type S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) A A T322JR/ T3222JR/ SP T SP SP SP T SP SP T T3221JR/ T32221JR/ A T T T3222JR/ T32222JR/ T T SP T A A AS [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

138 ouble-ow tapee olle beaings TO, TOS type (12) ~ (13) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) T3224JR/ T32224JR/ T SP T SP SP T SP T L225849/L / / / / / HM926747/HM / HM926749/HM / T A / A T T T3226JR/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

139 ouble-ow tapee olle beaings TO, TOS type (13) ~ (14) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) T262315A T3326JR/ / A/ T L327249/L / / / / / / / / / / / A/ / A/ / HM231132/HM / HH23431/HH [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

140 ouble-ow tapee olle beaings TO, TOS type (14) ~ (15) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) A A T T T T32228JR/ T / / / / / / HM23114/HM / EE1757/ EE75576/ P / HM231148/HM HM231149/HM A T A T32514A [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

141 ouble-ow tapee olle beaings TO, TOS type (15) ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) SP T SP SP T SP T T T323JR/ T3223JR/ T / M231649/M / / EE176/ EE4561/ HH23448/HH T313318A R/ A A T T T32232JR/ HM237532/HM [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

142 ouble-ow tapee olle beaings TO, TOS type 165 ~ 175 mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) SP T T L433749/L R/ / M235145/M / HM237535/HM HM237535/ HM237511X / SP SP T SP SP T M235149/M A A T / / / / HM237542/HM T [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

143 ouble-ow tapee olle beaings TO, TOS type ~ ( ) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign 3) T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) / / / M23884/M EE9172/91113X 1* / HM237545/HM HM237545/HM237511X 1* EE2872/ EE2227/ H23964/H / /93128X 1* A A T T3236JR/ T32236JR/ T / SP SP T SP / M238849/M / [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

144 ouble-ow tapee olle beaings TO, TOS type ( ) ~ 2 mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) H239649/H A A T383217C T3238JR/ T32238JR/ / / / EE42751/ / L5449/L LM739749/LM A T T T T A T T324JR/ [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

145 ouble-ow tapee olle beaings TO, TOS type 2.25 ~ (22) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) / EE13787/ H247535/H P LM241149/LM / M241547/M / A/ EE4281/ EE1148/ M241549/M / EE13284/ H242649/H24261C / / HM743345/HM T LM742745/LM LM742749/LM EE8285/ SP SP T A [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

146 ouble-ow tapee olle beaings TO, TOS type (22) ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) A T3244JR/ M244249/M EE13889/ EE11389/ P EE11391/ P / / EE1392/ HM746646/HM M249732/M EE439/ EE791/ SP SP T P T T T T464322A 1-P M249734/M / / H247548/H P H247549/H P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

147 ouble-ow tapee olle beaings TO, TOS type ~ (254.) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) M249736/M A T A T SP SP T SP T / EE12795/ EE12795/ EE1795/ EE27595/ EE27595/ H249148/H EE92395/ EE29595/ EE12697/ EE12697/ EE17975/ HH249949/HH P EE12698/ EE12698/ LM249748/LM [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

148 ouble-ow tapee olle beaings TO, TOS type (254.) ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) M249749/M EE1341/ EE2751/ EE2751/ HM252343/HM HM252344/HM HM252343/HM HM252344/HM HM252343/HM HM252344/HM HH953749/HH P A T T T A T T P EE13412/ EE22126/ HM252348/HM HM252348/HM HM252349/HM HM252348/HM HM252349/HM EE29512/ [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

149 ouble-ow tapee olle beaings TO, TOS type ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) LM451345/LM LM451349/LM LM451349/LM EE27515/ EE27515/ EE5515/ EE5515/ M252349/M EE27518/ EE27518/ EE72211/ EE29511/ LM654642/LM SP SP T SP EE128112/ EE128114/ A A T P EE1113/ EE128111/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

150 ouble-ow tapee olle beaings TO, TOS type ~ 34.8 mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) / LM654649/LM EE147112/ M255449/M T SP T L555249/L EE722115/ EE79114/ P EE291175/ T A A HM256849/HM L35749/L EE1912/ EE29121/ EE94125/ EE94125/ EE724119/ EE72412/ EE7912/ P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

151 ouble-ow tapee olle beaings TO, TOS type 31 ~ (34) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) SP T EE148122/ EE29125/ HM25949./HM T645625A 1-P H961649/H P A T644822AC A T645524AC EE971298/ EE971298/ T EE1613/ EE52613/ EE526132/ T HM26149/HM P T P T [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

152 ouble-ow tapee olle beaings TO, TOS type (34) ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) A A T T685831C 2-P EE971354/ EE971354/ EE161363/ HM262749/HM EE333137/ T715219C L163149/L EE1614/ EE2314/ EE2314/ EE33314/ A T T A 1-P T HM26549/HM P [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

153 ouble-ow tapee olle beaings TO, TOS type ~ (4) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) EE181453/ P T746828AC 2-P EE231462/ EE231462/ T A T A EE19215/ HM266447/HM P M26873/M P HM266449/HM P SP T P T P EE234154/ EE234154/ EE234156/ EE234156/ T A [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space. 3 31

154 ouble-ow tapee olle beaings TO, TOS type (4) ~ (431.8) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) T A 1-P T86528AC 2-P EE23416/ EE23416/ EE28516/ SP SP T P EE83316X/ EE73616/ EE9116/ EE57162/ EE57162/ M667948/M M268749/M P A T T T P A 1-P EE241693/ LM869448/LM EE24171/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

155 ouble-ow tapee olle beaings TO, TOS type (431.8) ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) EE57173/ EE57173/ A A 1-P EE737173/ M27749/M P EE24418/ SP SP T P P A 1-P T P A 1-P T P M272749/M P T A T P P A 1-P LM272249/LM EE24319/ [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

156 ouble-ow tapee olle beaings TO, TOS type ~ mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) EE64191/ P LM772748/LM EE64192/ P EE243192/ T EE243196/ /5 1-P /5A 1-P /5 1-P /5A 1-P TR EE9823/ P TR515C3 1-P EE98251/ P TR53 2-P /53 1-P /53A 1-P EE62621/ P M276449/1C 2-P EE542215/ P [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

157 ouble-ow tapee olle beaings TO, TOS type ~ (69.6) mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) EE54222/ P EE84322/ P TR559 1-P LM377449/LM P EE84322/ P T P SP SP TR56 1-P TR56L 2-P /56 1-P /56A 1-P /56 1-P /56A 1-P M278749/1 1-P TR58A 1-P TR59 1-P /6 1-P /6A 1-P TR6J 1-P /6 1-P EE649237/ P EE649237/ P EE64924/ P EE64924/ P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

158 ouble-ow tapee olle beaings TO, TOS type (69.6) ~ 85 mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) EE74324/ P TR63 1-P /63 1-P /63A 1-P /63A 1-P TR67A 1-P /67 1-P /67A 1-P TR P EE65527/ P /71 1-P /71A 1-P /71A 1-P EE75528/ P EE755285/ P LM283649/LM P TR78 1-P /8 1-P /8A 1-P EE76232/ P TR85 1-P [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

159 ouble-ow tapee olle beaings TO, TOS type 95 ~ 1 45 mm T C 1 S a b a a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 2) 2) 1 (kn) C C a a S a a 2) b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max. (Refe.) SP TR95 1-P TR95 1-P TR95J 1-P LL88949/LL TR137 1-P TR145 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom. 3) * means no lubication holes o gooves on ouble oute ing. ** means lubication holes in inne ing space

160 ouble-ow tapee olle beaings TNA type 11.6 ~ mm T C 1 ouble-ow tapee olle TNA type beaings S a b a a a esign 1 esign 2 ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max NA691/ NA782/ NA7145/ NA938// T NA48291/ NA798/ NA955// NA74525// NA4839// NA8155/ NA48686/ NA82576/ NA82576/ HM231149NA/HM NA816/ NA996/ HM237536NA/HM NA46791R/ NA67787// [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

161 ouble-ow tapee olle beaings TNA type ~ 46.4 mm T C 1 S a b a a a esign 1 esign 2 ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T C 1 (kn) C C a a S a a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u min. min. min. max. max NA6779/ NA877// NA947// H239649NA/H NA67885SW// NA13283// NA938/ NA1392/ NA1795// NA12796/ HM252343NA/HM HM252344NA/HM NA5512/ NA22126/ HM252349NA/HM HM252349NA/HM NA29121// NA2314// T859NA NA28516// [Note] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas

162 Fou-ow tapee olle beaings TQO type 65 ~ mm Fou-ow tapee olle TQO beaings type T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T T T A T T T T T T231612A T T T L624549/514/ LM124449/41/ M224749/71/ /2/ /22/ [Notes] [Note] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

163 Fou-ow tapee olle beaings TQO type 135 ~ 17 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T T T /2/ /2/ T T M231649/61/ T T /2/ /2/ T A T342418A T / [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

164 Fou-ow tapee olle beaings TQO type ~ 25 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) /2/ /2/ EE917/112/113X T T T T362818A T T M238849/81/ T TR /6782/ M24648/611/ T T EE13282/125/ /125/ T [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

165 Fou-ow tapee olle beaings TQO type ~ 235 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) /2/ /2/ T412821A T LM742749/714/ T T T T T T443326A T T T T443129A M244249/21/ TR225A LM245149/11/ T /2/ T [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

166 Fou-ow tapee olle beaings TQO type 24 ~ (26) mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T /P T T483631A SP T T484127A T483523A EE12797/135/ T LM247748/71/ EE12696/15/ EE22975/1575/ T T T T513627A T T513627C M249748/71/ T523627A T T T [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

167 Fou-ow tapee olle beaings TQO type (26) ~ mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) HM252348/31/ T T /2/ T M252349/31/ T T T563927A T T LM654644/61/ T T563829A X T56429A T P T LM654648/61/ M255449/41/ [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

168 Fou-ow tapee olle beaings TQO type ~ (32) mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE33116/166/ T T T T T T64727A SP T P T64729C 1-P T HM256849/81/ T614428C M757448/41/ M257149/11/ T614838A 1-P EE724121/195/ M257248/21/ T624331A T6246A LM258649/61/ T644533J 1-P T644533L T T [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

169 Fou-ow tapee olle beaings TQO type (32) ~ mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T P T T P T P T T T T665131A T674634/P HM26149/1/1 1-P A 1-P T T T T694625/P HM262749/1/ M262449/1/ T T LM763449/41/ M263349/31/31 1-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

170 Fou-ow tapee olle beaings TQO type 36 ~ 38 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) T724838A T724838C T T T P T T T P T T745238J 1-P HM26549/1/1 1-P T P T P T T T T P T765629A T765633A 1-P T T P T T P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

171 Fou-ow tapee olle beaings TQO type ~ (431.8) mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) HM266449/41/41 1-P T T785135A T T T85638A 1-P T P T8593A 1-P T T P T M267949/91/91X M667947/911/ T835943A 1-P T T T T865734C T T P LM769349/31/ [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

172 Fou-ow tapee olle beaings TQO type (431.8) ~ mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE93117/25/251X 1-P EE736173/238/239 1-P T P T P T P T P P A T M27749/71/71 1-P M27449/1/1 1-P T T91628A 1-P EE737179/26/261 1-P T T T P T T P T95637A T P M272749/71/71 1-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

173 Fou-ow tapee olle beaings TQO type 48 ~ (58.) mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) P T P T96742C T P TR19A 1-P TR19 1-P TR T T976542A 2-P M272647/61/61 1-P T EE64193/26/261 1-P EE243193/25/ LM772749/71/ T986339A T TR5M 2-P TR5 1-P SP /5 1-P TR5T TR5J 1-P TR5Q 1-P EE641198/265/266 1-P M274149/11/11 1-P TR58 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

174 Fou-ow tapee olle beaings TQO type (58.) ~ mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE53121/3/31X 1-P TR51A 1-P TR51L 1-P TR51Q 1-P TR514A LM274449/41/41 1-P M275349/31/31 1-P TR52 1-P LM275349/1/1 1-P SP TR P SP TR TR53 1-P TR53C TR535 1-P /535 1-P M276449/41/41 1-P TR54 1-P TR54A 1-P TR55C TR555 1-P TR559 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

175 Fou-ow tapee olle beaings TQO type ~ 69.6 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE843221/29/291 1-P TR559J TR559N 1-P TR TR559A 1-P LM277149A/11/11 1-P /56 1-P TR56 1-P TR57A 1-P TR57C 1-P TR572 2-P M278749/71/71 1-P TR58 1-P TR584 1-P LM778549/51/51 1-P LM278849/81/81 1-P M2849/1/1 1-P TR6 1-P M28249/21/21X 1-P TR61A 2-P EE649241/31/311 1-P TR69 1-P TR61 1-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

176 Fou-ow tapee olle beaings TQO type 62 ~ mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) TR62 1-P TR63 1-P TR635 1-P M28149/1/1X 1-P LM28149/1/1 1-P M281349/1/1 1-P T P M281649/61/61 1-P TR66 1-P TR66C 2-P L281149/11/11 1-P TR67 1-P TR676 1-P LM281849/81/81 1-P T P TR68 1-P TR68C 1-P TR686A 1-P TR686 2-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to 2) SP inicates the specially chamfee fom. page 194 fo etails of of applicable toleance stanas

177 Fou-ow tapee olle beaings TQO type ~ (863.6) mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) TR78 1-P TR71 1-P TR711 1-P T P M38324/21/21 1-P LM282847/81/81 1-P TR73 1-P M283449/41/41 1-P LM283649/61/61 1-P TR75 1-P TR75A 1-P TR76 1-P SP TR762 1-P M284249/21/21X 1-P TR785 1-P TR8 1-P M285848/1/1 1-P TR84 1-P LM286249/21/21 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

178 Fou-ow tapee olle beaings TQO type (863.6) ~ 1 2 mm T Fo oil mist lubication S a 1 W a a esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant Axial loa factos (kn) loa limit eaing No. 1) esign T W 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u max. max. min. min. max. max. (Refe.) EE547341/48/481 1-P LM287649/61/61 1-P LM287849/81/81 1-P TR12 1-P [Note] [Notes] 1) 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of of applicable toleance stanas. 2) SP inicates the specially chamfee fom

179 Fou-ow tapee olle beaings 45 type ~ mm Fou-ow tapee olle 45 beaings type 1 T X 1 X 2 a S a a W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant factos Axial loa (kn) loa limit eaing No. 1) esign T W X 1 X 2 2) 2) 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm mm min. min. C u max. max. min. min. max. max. (Refe.) P P P SP P A 1-P SP A 1-P P TR51C 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

180 Fou-ow tapee olle beaings 45 type 51 ~ mm 1 T X 1 X 2 a S a a W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue Mounting imensions Constant factos Axial loa (kn) loa limit eaing No. 1) esign T W X 1 X 2 2) 2) 2) 1 (kn) C C a a S a b e Y 2 Y 3 Y mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm mm min. min. C u max. max. min. min. max. max. (Refe.) TR51L-2 1-P TR559P-1 1-P SP TR61 2-P SP TR686J 1-P [Notes] 1) While metic seies beaings have minus toleances fo boe an O, inch seies have plus toleances. Refe to page 194 fo etails of applicable toleance stanas. 2) SP inicates the specially chamfee fom

181 Seale type fou-ow tapee olle beaings 75 ~ mm 1 T W Seale type fou-ow tapee olle beaings esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TS TS TS TS TS TS TS382719A TS TS TS TS TS TS SP SP TS44332A TS TS TS TS TS453223A SP TS TS47332A [Note] 1) SP inicates the specially chamfee fom

182 Seale type fou-ow tapee olle beaings 24 ~ mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TS TS TS TS TS483434A SP TS483523A TS TS TS TS53727A TS513627A TS TS TS TS TS TS SP TS553927A TS SP TS TS SP TS [Note] 1) SP inicates the specially chamfee fom

183 Seale type fou-ow tapee olle beaings 28 ~ mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) SP TS563829A TS TS56434A TS TS TS TS TS573824A TS TS58442C TS TS TS TS TS TS614428C TS TS P TS TS TS624335A SP TS TS TS [Note] 1) SP inicates the specially chamfee fom

184 Seale type fou-ow tapee olle beaings 32 ~ 41 mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TS TS P TS P TS TS674634A TS TS P TS SP TS TS SP S74842C 1-P TS TS P TS724838A TS75526A SP TS P TS795536A TS P TS815533A 2-P TS815536A TS [Note] 1) SP inicates the specially chamfee fom

185 Seale type fou-ow tapee olle beaings ~ mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TS835944A 2-P TS TS P SP SP TS P SP TS865838A 2-P TS865734A SP TS885948A-3 2-P TS P TS TS P TS91628C 2-P TS P TS P TS P SP TS P TS P TRS19 1-P TRS19C TRS19 2-P TS P TS TS TS976542A 1-P [Note] 1) SP inicates the specially chamfee fom

186 Seale type fou-ow tapee olle beaings ~ mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TS TS P TRS51 1-P TRS53A 1-P SP TRS559J 1-P TRS559C 1-P TRS559A 1-P TRS559 1-P TRS559 1-P TRS586A 1-P TRS595 1-P TRS6A 1-P TRS61 1-P TRS61A 1-P TRS679 1-P TRS686A 1-P TRS75 1-P SP TRS711N 2-P TRS711A 1-P TRS711 1-P TRS711L 1-P [Note] 1) SP inicates the specially chamfee fom

187 Seale type fou-ow tapee olle beaings 8 mm 1 T W esign 1 esign 1-P esign 2 esign 2-P ounay imensions asic loa atings Fatigue (kn) loa limit T W 1) 1) 1 (kn) C C mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. C u eaing No. esign Constant Axial loa factos e Y 2 Y 3 (Refe.) TRS8 1-P [Note] 1) SP inicates the specially chamfee fom

188 ( Cylinical boe ( Tapee boe Spheical olle beaings featue a lage loa ating capacity. This type of beaing is suitable fo low- o meium-spee applications which involve heavy o impact loaing. The spheical olle beaing is self-aligning, insensitive to misalignment of the shaft elative to the housing, an to shaft bening. eaing with tapee boe can be easily mounte/ismounte by using an aapte assembly o withawal sleeve. 1) 24 an 241 seies 1 : 3 (supplementay coe K3) 2) Othes 1 : 12 (supplementay coe K) R, RR type RH, RHR type RHA type R, RR type RH, RHR type RHA type R, RR type RH, RHR type RHA type Rolle Convex asymmetical olle Convex symmetical olle Convex symmetical olle Cage Inne ing (with o without ib) Chaacteistics Coppe alloy pong type machine cage With cente ib With ibs on both sies (to pevent olles fom falling) Supeio to RH, RHR an RHA types in high-spee pefomance. Pesse steel cage Without cente ib (floating guie ing) Without ibs on both sies Coppe alloy integal type machine cage Without cente ib (floating guie ing) With ibs on both sies (to pevent olles fom falling) The loa ating capacity is lage than that of R an RR type. (Thee ae some exceptional cases ue to iffeent inteio specifications.) Oute ings can be povie with lubication holes, a lubication goove an an anti-otation pin hole. Supplementay coe With lubication holes an lubication goove With lubication holes, lubication goove an antiotation pin hole Inne ings can also be povie with lubication holes an a lubication goove. [Notes] 1) Also 4 o 6 holes ae povie. 2) One hole is use fo the antiotation pin. [Remak] olface coes inicate JTEKT stanas Numbe of lubication holes Hole layout W33 W3N 3 1) 3 equally space positions 1) W33A W3NA 4 W3N 5 W33C W3NC 6 W3N 7 W33T 8 4 equally space positions 6 equally space positions 2) 6 equally space positions 8 equally space positions 2) 8 equally space positions Supplementay coe Numbe of lubication holes Inne ing Lubication goove Oute ing Numbe of lubication holes Lubication goove W # W W26 3

189 ( Lubication hole an lubication goove imensions (W33, W33A, W33C, W33T) h oe Nominal iamete boe numbe iamete w h w h w h w h w h w h w h w h w h w Unit : mm ounay imensions The imensions of stana seies ae as specifie in JIS Toleances As specifie in JIS 1514, class. (efe to Table 2-2 on page 18.) Refe to Table 2-1 on page 34 fo the toleance of tapee boes. Allowable aligning angle 238R.17 a (1 ) 241R, RH, RHA.44 a (2.5 ) 239R.26 a (1.5 ) 222R, RR, RH, RHR, RHA.26 a (1.5 ) 23R, RH, RHA.26 a (1.5 ) 232R, RH, RHA.44 a (2.5 ) 24R, RH, RHA.35 a (2 ) 213R, RH.17 a (1 ) 231R, RH, RHA.26 a (1.5 ) 223R, RR, RH, RHR, RHA.35 a (2 ) Raial intenal cleaance (Refe to Table 4-6 on page 54.) Equivalent aial loa ynamic equivalent aial loa When When F a F F a F Static equivalent aial loa > e P = F + Y F a e P = F + Y 1 F a P =.67F + Y 2 F a [Note] Refe to the specification table fo the values of axial loa factos Y1, Y2 an Y an of constant e /5 /53 / /6 /63 /67 / /75 /8 /85 / /95 /1 /1 6 / /1 18 /1 25 /1 32 /

190 Spheical olle beaings 1 ~ (14) mm é ìæíðêsç±çîéðéû a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RH 232RHK RHR 2222RHRK RH 2322RHK RH 2132RHK RHR 2232RHRK RH 2322RHK RH 23122RHK RH 24122RHK RHR 22222RHRK RH 23222RHK RH 21322RHK RHR 22322RHRK RH 2324RHK RH 2424RHK RH 23124RHK RH 24124RHK RHR 22224RHRK RH 23224RHK RHR 22324RHRK RH 2326RHK RH 2426RHK RH 23126RHK RH 24126RHK RHR 22226RHRK RH 23226RHK RHR 22326RHRK RH 2328RHK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

191 Spheical olle beaings (14) ~ (17) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RH 2428RHK RH 23128RHK RH 24128RHK RHR 22228RHRK RH 23228RHK RH 22328RHK R 2393RK RH 233RHK RH 243RHK RH 2313RHK RH 2413RHK RHR 2223RHRK RH 2323RHK R 2233RK RHA 2233RHAK R 23932RK RH 2332RHK RH 2432RHK RH 23132RHK RR 24132RRK R 22232RK RHA 22232RHAK RR 23232RK RHA 23232RHAK R 22332RK RHA 22332RHAK R 23934RK RH 2334RHK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

192 Spheical olle beaings (17) ~ (19) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RH 2434RHK RH 23134RHK RR 24134RRK R 22234RK RHA 22234RHAK RR 23234RRK RHA 23234RHAK R 22334RK RHA 22334RHAK R 23936RK RH 2336RHK RR 2436RRK R 23136RK RHA 23136RHAK RR 24136RRK RHA 24136RHAK R 22236RK RHA 22236RHAK RR 23236RRK RHA 23236RHAK R 22336RK RHA 22336RHAK R 23938RK R 2338RK RHA 2338RHAK RR 2438RRK RHA 2438RHAK R 23138RK RHA 23138RHAK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

193 Spheical olle beaings (19) ~ (22) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RR 24138RRK RHA 24138RHAK R 22238RK RHA 22238RHAK RR 23238RRK RHA 23238RHAK R 22338RK RHA 22338RHAK R 2394RK R 234RK RHA 234RHAK RR 244RRK RHA 244RHAK RR 2314RRK RHA 2314RHAK RR 2414RRK RHA 2414RHAK RR 2224RRK RHA 2224RHAK R 2324RK RHA 2324RHAK R 2234RK RHA 2234RHAK R 23944RK R 2344RK RHA 2344RHAK RR 2444RRK RHA 2444RHAK R 23144RK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

194 Spheical olle beaings (22) ~ (26) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RHA 23144RHAK RR 24144RRK RHA 24144RHAK RR 22244RRK RHA 22244RHAK R 23244RK RHA 23244RHAK R 22344RK RHA 22344RHAK R 23948RK RR 2348RRK RHA 2348RHAK RR 2448RRK RHA 2448RHAK RR 23148RRK RHA 23148RHAK RR 24148RRK RHA 24148RHAK R 22248RK RHA 22248RHAK RR 23248RRK RHA 23248RHAK R 22348RK RHA 22348RHAK R 23952RK R 2352RK RHA 2352RHAK RR 2452RRK RHA 2452RHAK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

195 Spheical olle beaings (26) ~ (3) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RR 23152RRK RHA 23152RHAK RR 24152RRK RHA 24152RHAK R 22252RK RHA 22252RHAK R 23252RK RHA 23252RHAK R 22352RK RHA 22352RHAK R 23956RK R 2356RK RHA 2356RHAK RR 2456RRK RHA 2456RHAK RR 23156RRK RHA 23156RHAK RR 24156RRK RHA 24156RHAK R 22256RK RHA 22256RHAK R 23256RK RHA 23256RHAK R 22356RK RHA 22356RHAK R 2396RK R 236RK RHA 236RHAK RR 246RRK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

196 Spheical olle beaings (3) ~ (34) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RHA 246RHAK RR 2316RRK RHA 2316RHAK RR 2416RRK RHA 2416RHAK R 2226RK RHA 2226RHAK R 2326RK RHA 2326RHAK R 2236RK R 23964RK R 2364RK RHA 2364RHAK RR 2464RRK RHA 2464RHAK R 23164RK RHA 23164RHAK RR 24164RRK RHA 24164RHAK R 22264RK R 23264RK RHA 23264RHAK R 23968RK R 2368RK RHA 2368RHAK RR 2468RRK RHA 2468RHAK R 23168RK RHA 23168RHAK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

197 Spheical olle beaings (34) ~ 38 mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe RR 24168RRK RHA 24168RHAK R 22268RK R 23268RK RHA 23268RHAK R 23972RK R 2372RK RHA 2372RHAK RR 2472RRK RHA 2472RHAK R 23172RK RHA 23172RHAK R 24172RK RHA 24172RHAK R 22272RK R 23272RK RHA 23272RHAK R 23976RK R 2376RK RHA 2376RHAK RR 2476RRK RHA 2476RHAK R 23176RK RHA 23176RHAK R 24176RK RHA 24176RHAK R 23276RK RHA 23276RHAK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

198 Spheical olle beaings 4 ~ (44) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe R 2398RK R 238RK RHA 238RHAK R 248RK RHA 248RHAK R 2318RK RHA 2318RHAK R 2418RK RHA 2418RHAK R 2328RK RHA 2328RHAK R 23984RK R 2384RK RHA 2384RHAK R 2484RK RHA 2484RHAK R 23184RK RHA 23184RHAK R 24184RK RHA 24184RHAK R 23284RK RHA 23284RHAK R 23988RK R 2388RK RHA 2388RHAK R 2488RK RHA 2488RHAK R 23188RK RHA 23188RHAK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

199 Spheical olle beaings (44) ~ (5) mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe R 24188RK RHA 24188RHAK R 23288RK RHA 23288RHAK R 23896RK R 23992RK R 2392RK RHA 2392RHAK R 2492RK RHA 2492RHAK R 23192RK RHA 23192RHAK R 24192RK RHA 24192RHAK R 23292RK RHA 23292RHAK R 23996RK R 2396RK RHA 2396RHAK R 2496RK RHA 2496RHAK R 23196RK RHA 23196RHAK R 24196RK RHA 24196RHAK R 23296RK RHA 23296RHAK /5R 239/5RK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

200 Spheical olle beaings (5) ~ 6 mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe /5R 23/5RK /5R 24/5RK /5R 231/5RK /5R 241/5RK /5R 232/5RK /53R 239/53RK /53R 23/53RK /53RHA 23/53RHAK /53R 24/53RK /53R 231/53RK /53R 241/53RK /53R 232/53RK /56R 238/56RK /56R 239/56RK /56RHA 239/56RHAK /56R 23/56RK /56R 24/56RK /56R 231/56RK /56R 241/56RK /56R 232/56RK /56RR 232/56RRK /6R 239/6RK /6RR 23/6RRK /6RRHA 23/6RRHAK /6R 24/6RK /6R 231/6RK /6R 241/6RK /6R 232/6RK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

201 Spheical olle beaings 63 ~ 8 mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe /63R 239/63RK /63RHA 23/63RHAK /63R 24/63RK /63RHA 24/63RHAK /63R 231/63RK /63R 241/63RK /63R 232/63RK /67R 239/67RK /67R 23/67RK /67R 24/67RK /67R 231/67RK /67R 241/67RK /71R 239/71RK /71R 23/71RK /71RHA 24/71RHAK /71R 231/71RK /71R 241/71RK /75R 239/75RK /75R 23/75RK /75RHA 23/75RHAK /75R 24/75RK /75R 231/75RK /8R 239/8RK /8RHA 239/8RHAK /8R 23/8RK /8R 24/8RK /8R 231/8RK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

202 Spheical olle beaings 85 ~ 1 4 mm a a a a Cylinical boe Tapee boe Cylinical boe Tapee boe Cylinical boe Tapee boe R, RR RH, RHR RHA ounay imensions asic loa atings Fatigue eaing No. Mounting imensions Constant Axial loa factos (Refe.) (kn) loa limit (kn) C C Cylinical boe Tapee boe a a a Cylinical Tapee e Y 1 Y 2 Y (Refe.) C u min. max. max. boe boe /85R 239/85RK /85R 23/85RK /85R 24/85RK /85R 231/85RK /9R 239/9RK /9R 23/9RK /9RHA 24/9RHAK /9R 231/9RK /95R 239/95RK /95R 23/95RK /95RHA 24/95RHAK /1R 238/1RK /1R 239/1RK /1R 23/1RK /1R 24/1RK /16R 238/16RK /16R 239/16RK /16R 24/16RK /112R 239/112RK /112R 23/112RK /112R 24/112RK /118R 239/118RK /125R 239/125RK /14R 239/14RK [Remak] Fo beaings with lubication holes an lubication gooves on the oute ing, efe to page 371 an

203 ( Single iection esign 1 esign 2 Axial loa can be accommoate in one iection. Although it is esigne to cay high axial loa, is not suitable fo high-spee opeation. The olling elements nomally contacts the shaft washe (o housing washe) with contact angle 9. ounay imensions As specifie in JIS Toleances As specifie in JIS 1514, class o 6. (efe to Table 2-7 on page 3.) Allowable misalignment Amount of peloa fo thust ball beaings Misalignment not allowe. When a thust ball beaing is otate at high spee, balls slie on aceway ue to centifugal foce an the gyo moment, which often causes the aceway to suffe fom smeaing o othe efects. To eliminate such sliing, it is necessay to mount the beaing without cleaance, an apply an axial loa (peloa) lage than the minimum necessay axial loa etemine by the following equation. n C F a min = 5.1 a (contact angle : 9 ) whee : F a min : minimum necessay axial loa N n : otational spee min 1 Ca : static axial loa ating N When an axial loa fom the outsie is lowe than.1 3 C a, thee is no avese effect on the beaing, as long as lubication is satisfactoy. Geneally, eep goove an angula contact ball beaings ae ecommene fo applications when a potion of otation une axial loa is pesent at high spee. Stana cages Pesse cage (esign 1) o machine cage (esign 2) 2 2 Equivalent axial loa ynamic equivalent axial loa Pa = Fa Static equivalent axial loa P a = F a 4 41

204 Single iection thust ball beaings 1 ~ (16) mm ípéæéxéâéxégãþéðéû (16) ~ (32) mm 1 a a 1 T esign 1 esign 2 a a min. C u max. min. min. max. max ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit esign eaing No. (kn) T C a C 1 1 a a a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit esign eaing No. (kn) T C a C 1 1 a a a a min. C u max. min. min. max. max

205 Single iection thust ball beaings (32) ~ 53 mm 1 a a 1 T esign 1 esign 2 a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit esign eaing No. (kn) T C a C 1 1 a a a a min. C u max. min. min. max. max / /

206 Tapee olle thust beaings come in thee types, single iection type, ouble iection type, an scew-own spinle type (single iection full complement type). They suitable fo extemely heavy axial loa an impact loa. The housing washe an shaft washe aceways ae so esigne that the extension lines of both aceways intesect at one point on the beaing centeline axis which pomotes geometically tue olling motion of the olling elements. The contact aeas between the ib povie fo shaft washe an/o housing washe an the spheically goun olle lage en face ae esigne so that the olles can be guie secuely, an pope oil film is fome. ( Single iection (page 41) esign 1 esign 2 (Full complement) esign 3 eaings having ibs fo both shaft an housing washes ae suitable fo the locations whee the beaings can be secuely fixe in aial iection, an mainly use fo cane hook an swivel of oil excavato. If extemely heavy axial loa is equie, use the full complement type beaings (esign 2). eaings having flat housing washe aceway (esign 3) allow some misalignment of shaft (against housing hole) uing otation. ( ouble iection (page 414) (Fo oil mist lubication) esign 1 esign 2 esign 2-P esign 3 The beaing of this type can suppot axial loa in both iections, an is mainly use to suppot the axial loa on oll neck of olling mills. Since the shaft washe is teate with a cleaance fit to the shaft, the shaft washe must be tightene an fixe secuely with a sleeve. The axial cleaance is commonly ajuste by means of space. The beaing without space is pe-loae by sping, etc. fo use. Some beaings have lubication holes an O- ings on the space fo oil mist lubication

207 ( Fo scew own spinles (Single iection full complement) THR Type (page 418) esign 1 esign 2 esign 3 ounay imensions Toleances Misalignment Stana cage Equivalent loa Custom-manufactue to imensions equie fo specific equipment. Consult with JTEKT, as special toleances ae aopte fo specific application. Geneally equivalent to class specifie in JIS (efe to Table 2-8 on page 31). No misalignment is allowable. Machine cage ynamic equivalent loa P a = Fa Static equivalent loa P a = F a THR X Type (page 42) esign 4 esign 5 The beaings, suitable fo low-spee an heavy loa, have been esigne fo scew own spinles. The shaft washe suface is goun to convex o concave spheical suface to suit the pofiles of the shaft en faces of scew-own spinles. Since the spheical shaft washe suface suppots scew-own spinles, some misalignment of scew-own spinles uing otation is allowable. Some spinle unout is also allowable, since the housing washe aceway is esigne flat. The beaings can be hanle easily, as the shaft washe has the lifting hole in the cente (some beaings have lifting nuts in the lifting holes: esign 2, 3, 5), an the housing washe also has lifting tappe hole. In many cases, housing washe is fixe to the housing with full og point set scews. Thus, the outsie suface is equippe with a goove to eceive the tip of the set scews. Mounting example of ouble iection tapee olle thust beaing on the olling mill oll neck Mounting example of tapee olle thust beaing fo scew own spinle 48 49

208 Single iection tapee olle thust beaings ~ 34 mm Single iection tapee olle thust beaings T esign 1 esign 1-1 esign 2 esign 3 ounay imensions asic loa atings Fatigue Max. fillet aius (kn) loa limit eaing No. esign T 1 1 1) 1) (kn) 1 C a C Shaft Housing a mm 1/25.4 mm 1/25.4 mm 1/25.4 mm mm C u a b THR T T THR3327A T T691V T THR T THR SP T T921V THR THR SP T T112V SP SP THR THR THR [Note] 1) SP inicates the specially chamfee fom

209 Single iection tapee olle thust beaings 46.4 ~ 83 mm T esign 1 esign 1-1 esign 2 esign 3 ounay imensions asic loa atings Fatigue Max. fillet aius (kn) loa limit eaing No. esign T 1 1 1) 1) (kn) 1 C a C Shaft Housing a mm 1/25.4 mm 1/25.4 mm 1/25.4 mm mm C u a b SP T SP SP THR THR THR [Note] 1) SP inicates the specially chamfee fom

210 ouble iection tapee olle thust beaings 16 ~ (42) mm T ï éæéxéâéxégâ~ç²ç DZÇÎéðéÛ a 1 b 1 2 a a esign 1 esign 2 esign 2-P esign 3 esign 4 esign 4-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign (kn) T C a C a a a b a C u min. max. max. max THR THR34248A THR THR36289A THR THR THR THR4431A THR THR THR5381C THR THR52369/P THR THR THR74913A THR74913A/P THR74913A/P THR THR THR THR765613A THR765613A/P THR P

211 ouble iection tapee olle thust beaings (42) ~ 55 mm T a 1 b 1 2 a a esign 1 esign 2 esign 2-P esign 3 esign 4 esign 4-P ounay imensions asic loa atings Fatigue Mounting imensions (kn) loa limit eaing No. esign (kn) T C a C a a a b a C u min. max. max. max THR P THR THR P THR P THR52 2-P THR55 2-P

212 Tapee olle thust beaings fo scew own spinle THR type (Full complement) ~ mm Tapee olle thust THR...type beaings fo (Full scew complement) own spinle R s 1 2 G 1 3 U T T 1 V G esign 1 esign 2 esign 3 ounay imensions 1 2 T mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 asic loa atings imensions (kn) eaing No. esign C a R s 3 T 1 U V G G THR M THR M12 M THR M THR M THR M THR M24 M THR41A M24 M THR M24 M THR M24 M THR495A M24 M THR (W1) THR55A M24 M THR55A M24 M THR M24 M THR M24 M THR61A M24 M THR M24 M THR61M M24 M THR M24 M THR M24 M

213 Tapee olle thust beaings fo scew own spinle THR X type (Full complement) ~ 52. mm Tapee olle thust THR...X beaings type fo (Full scew complement) own spinle 1 2 U R s T 1 T V G G 1 esign 1 esign 2 ounay imensions 1 2 T mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 asic loa atings imensions (kn) eaing No. esign C a T 1 R s U V G G THR149X M THR175X M12 M THR175X W 1/ THR175X M12 M THR23X M THR23X M12 M THR267X M THR267X M2 M THR275X THR321AX M36 M THR321X M36 M THR321X M THR378X M24 M THR41X M24 M THR438X M12 M THR438X M12 M THR483XC M24 M THR495X M THR495X M24 M THR495X M THR495X M24 M THR521X W1 W1-1/ THR524X M

214 Tapee olle thust beaings fo scew own spinle THR X type (Full complement) ~ 9. mm 1 2 U R s T 1 T V G G 1 esign 1 esign 2 ounay imensions 1 2 T mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 asic loa atings imensions (kn) eaing No. esign C a T 1 R s U V G G THR524X M THR533X M24 M THR556AX UNC 1*1/4-7UNC THR556X M24 M THR556-2X M24 M THR556X M24 M THR581X M24 M THR581X M24 M THR61X M24 M THR61X M3 M THR641X M24 M THR641CX M24 M THR71XA M24 M THR8X M3 M THR84X M36 M THR848X M42 M THR848X M36 M THR9X M24 M THR93X M36 M

215 Spheical thust olle beaings ae esigne to cay high axial loas. They can also suppot aial loa if magnitue is no moe than 55 % of the axial loa being caie. Having a spheical housing washe aceway suface, these beaings ae self-alignings. These beaings ae not suitable fo high-spee otation. In geneal, they ae use with oil lubication. ounay imensions As specifie in JIS Toleances As specifie in JIS 1514, class. (efe to Table 2-8 on page 31.) Allowable aligning angle Amount of peloa fo spheical thust olle beaings a (2 3 ) in geneal, epening on beaing seies. Spheical thust olle beaings sometimes suffe fom scuffing, smeaing, o othe efects ue to sliing which occus between the olle an aceway suface une nomal opeation. To eliminate such sliing, it is necessay to mount the beaing without cleaance, an apply an axial loa (peloa) lage than the minimum necessay axial loa etemine by the following equation. (the highe value etemine by the two equations shoul be taken) Stana cage Equivalent axial loa C F a min = a 2 F a min = 1.8F n C a whee : F a min : minimum necessay axial loa N F : aial loa N n : otational spee min 1 C a : static axial loa ating N Machine cage ynamic equivalent axial loa P a = 1.2 F + F a Static equivalent axial loa Pa 2.7 F + Fa (Note : F / F a.55)

216 Spheical thust olle beaings 1 ~ (22) mm ÉXÉâÉXÉgé ìæíðêsç±çîéðéû C A T a a a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit eaing No. (kn) T C a C a C A a a a min. C u min. max. max R R R R R R R R R R R R R R R R R R R R R R R

217 Spheical thust olle beaings (22) ~ (4) mm C A T a a a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit eaing No. (kn) T C a C a C A a a a min. C u min. max. max R A R R R R R R R R R R R R R R

218 Spheical thust olle beaings (4) ~ 71 mm C A T a a a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit eaing No. (kn) T C a C a C A a a a min. C u min. max. max R R R R R R R /5R / / /53R / / / / / / / /

219 Spheical thust olle beaings 8 ~ 1 6 mm C A T a a a a ounay imensions asic loa atings Fatigue imensions Mounting imensions (Refe.) (kn) loa limit eaing No. (kn) T C a C a C A a a a min. C u min. max. max / /

220 In continuous casting machines, oll suppot beaings ae use une heavy loas an at extemely low spee. In aition, the opeating conitions ae sevee, esulting in exposue to splashing wate an scales. SCP beaings fo fixe sie an SC beaings fo fee sie ae use fo en of olls. HSC beaing units with half-oun oute ing is use fo the intemeiate suppot section of beetleshape olls, such as iving olls. JTEKT beaings fo continuous casting machines ae esigne base on a full complement cylinical olle beaing, with efeence to maximize static loa atings. Cowning ae set up on olling suface of its olles, accoing to the size of loas, which contibutes to solve stess concentation at specific location. The beaing has the self-aligning mechanism to absob oll bening an misalignment ue to heavy loa. ( SC beaings (fee sie) (page 436) ( SCP beaings (fixe sie) (page 436) To accommoate themal contaction an expansion of oll, the inne ing of this beaing ae esigne to move smoothly in the axial iection. The beaing has been evelope fo the pupose of impovement in shot sevice life of spheical olle beaings most commonly use fo continuous casting machines. The ibs povie fo the inne an oute ings an loose ib allow accommoation of axial loas geneate by themal contaction an expansion of olls. ( HSC beaing units with half-oun oute ing (page 442) To accommoate themal contaction an expansion of oll, the inne ing an olle of this beaing ae esigne to move smoothly in the axial iection. This unit has unique stuctue, with a half-oun oute ing place on the loae sie only. This special half-oun oute ing an compact seal esign ealizes a 15 % incease in static loa ating ove that of conventional poucts. The unique jacket esign ajusts the flow of wate an enables a high cooling efficiency, equivalent to that of conventional poucts with a lowe wate flow ate of 55 %

221 eaings fo continuous casting machines 5 ~ (11) mm òaë±ííë ã@ópéðéûåisc/scpéxéaéäéìéoåj Housing a esign 1 SC beaings (fee sie) ounay imensions esign 2 SCP beaings (fixe sie) Acceptable asic loa atings Coesponing spheical olle beaing Mounting imensions oll heat (kn) eaing No. asic loa atings expansion eaing No. (kn) C C a min. C C min. max. esign ± SC1114VA 2231RHR ± SC11932VA ± SC11125VA 22211RHR ± SC131231V-1A 22213RHR ± SC131448VA 22313RHR ± SC141331VA 22214RHR ± SC141551VA 22314RHR ± SC151331VA 22215RHR ± SC171565VA 24217RH SCP171565VA 24217RH ± SC VA 22218RHR SCP18164V-1A 22218RHR ± SC181652VA 23218RH SCP181652V-2A 23218RH /48 2 ± SC181645/48V-1A ± SC2155VA SCP2155VA ± SC21752V-1A 2312RH ± SC211656VA 2421RHA ± SC221745V-3A 2322RH SCP221745V-3A 2322RH ± SC22176V-1A 2422RH ± SC221764VA ± SC221856V-8A 23122RH ± SC221869V-3A 24122RH

222 eaings fo continuous casting machines (11) ~ (15) mm Housing a esign 1 SC beaings (fee sie) ounay imensions esign 2 SCP beaings (fixe sie) Acceptable asic loa atings Coesponing spheical olle beaing Mounting imensions oll heat (kn) eaing No. asic loa atings expansion eaing No. (kn) C C a min. C C min. max. esign SCP221869V-3A 24122RH SCP22253VA 22222RHR ± SC241846V-2A 2324RH SCP241846V-2A 2324RH ± SC241854VA ± SC241858V-1A ± SC24186V-1A 2424RH /46 2 ± SC241856/46VA ± SC2428VA 24124RH SCP2428V-3A 24124RH SCP26252V-1A 2326RH ± SC26269V-1A 2426RH SCP26269V-1A 2426RH /69 2 ± SC26279/69VA ± SC262164VA 23126RH ± SC26218V-2A 24126RH SCP26218V-2A 24126RH ± SC262364V-2A 22226RHR ± SC282153V-1A 2328RH SCP282153V-1A 2328RH ± SC282169RVA 2428RH SCP282169RVA 2428RH ± SC282368RVA 23128RH SCP282368V-1A 23128RH ± SC282385V-1A 24128RH SCP282385V-1A 24128RH ± SC32375V-6A 243RH SCP32375V-6A 243RH

223 eaings fo continuous casting machines (15) ~ 22 mm Housing a esign 1 SC beaings (fee sie) ounay imensions esign 2 SCP beaings (fixe sie) Acceptable asic loa atings Coesponing spheical olle beaing Mounting imensions oll heat (kn) eaing No. asic loa atings expansion eaing No. (kn) C C a min. C C min. max. esign ± SC3251V-1A 2413RH ± SC32796VA 2323RH ± SC VA 2432RH ± SC322719VA 24132RH ± SC VA 22332RHA ± SC34269V-1A 2434RH SCP34269V-1A 2434RH ± SC343111VA 23234RHA ± SC36281V-1A 2436RH ± SC V-1A 23236RHA SCP V-1A 23236RHA SCP382975V-1A 2338RHA ± SC38291V-1A 2438RHA SCP38291V-1A 2438RHA ± SC383214VA 23138RHA ± SC VA 24138RHA SCP VA 24138RHA ± SC383412V-1A 23238RHA SCP43182VA 234RHA ± SC43111RVA 244RHA ± SC434112V-1A 2314RHA ± SC43414VA 2414RHA ± SC443715VA 24144RHA

224 HSC beaing units with half-oun oute ing fo continuous casting machines 195 ~ (26) mm òaë±ííë ã@ópénå[étéäéìéoå`éðéûî ÉÜÉjÉbÉg 2 1 H Roll outsie ounay imensions Seal type Acceptable asic loa atings ia. Housing unit No. eaing No. oll heat (kn) Recovey Non-ecovey expansion H 1 2 type type C C C8 PA391H # HSC217-1C3 ± PA399H # HSC2219-7C3 ± PA36H # HSC2219-6C3 ± PA328H # HSC219C3 ± PA171H # HSC2219-3C3 ± PA171H # HSC2219-8C3 ± PA171AXH # HSC2219-1C3 ± PA171AH # HSC2219C3 ± PA171AH # HSC2219-9C3 ± PA28H # HSC2219-2C3 ± PA28H # HSC C3 ± PA368H # HSC2219-4C3 ± PA44H # HSC222C3 ± C8 PA339H # HSC2821C3 ± PA316H # HSC2321C3 ± PA316H # HSC2321-2C3 ± PA396H # HSC2421-2C3 ± PA411H # HSC2421-6C3 ± PA336H # HSC2421C3 ± PA336AH # HSC2421C3 ± PA378H # HSC2421-1C3 ± PA251H-2 # HSC2421-4C3 ± PA251H # HSC2421-3C3 ± PA47H # HSC2421-5C3 ± PA41H # HSC2522C3 ± PA379H # HSC2421-1C3 ±

225 HSC beaing units with half-oun oute ing fo continuous casting machines (26) ~ 32 mm 2 1 H Roll outsie ounay imensions Seal type Acceptable asic loa atings ia. Housing unit No. eaing No. oll heat (kn) Recovey Non-ecovey expansion H 1 2 type type C C PA412H # HSC2622-2C3 ± PA397H # HSC2823-2C3 ± PA355H # HSC2823-1C3 ± PA252H # HSC2622C3 ± PA176H # HSC2823C3 ± PA176H # HSC2823-3C3 ± PA27H # HSC2824-1C3 ± PA27H # HSC2824-4C3 ± C1 PA389H # HSC324C3 ± PA337H # HSC2624C3 ± PA337AH # HSC2624C3 ± PA356H # HSC2925-1C3 ± PA177H # HSC2825C3 ± PA177H # HSC2825-1C3 ± PA26H # HSC2925C3 ± PA26H # HSC2925-2C3 ± PA357H # HSC2926C3 ± PA48H # HSC325C3 ± PA338H # HSC2827C3 ± PA338AH # HSC2827C3 ± PA38H # HSC328C3 ± PA178H # HSC3228C3 ± PA178H # HSC3228-2C3 ± PA398H # HSC3227C3 ± PA358H # HSC3328C3 ±

226 HSC beaing units with half-oun oute ing fo continuous casting machines 34 ~ 37 mm 2 1 H Roll outsie ounay imensions Seal type Acceptable asic loa atings ia. Housing unit No. eaing No. oll heat (kn) Recovey Non-ecovey expansion H 1 2 type type C C PA359H # HSC363C3 ± PA324H # HSC3834C3 ±

227 esign 1 esign 2 esign 3 esign 4 esign 5 esign 6 esign 7 esign 8 esign 9 esign 1 esign 11 Since the beaing is use as the back up oll in multi-oll mills, the oute ing is esigne thicke than oinay beaings. Since high accuacy is equie fo these beaings une high pessue, they ae esigne to have high loa ating an accuacy. Since seveal beaings ae mounte on a shaft, aial unout of oute ing an vaiations of beaing section height pe unit afte assembly ae minimize. Even if the outsie suface of beaing s oute ing gets ough ue to foeign mattes caught in, the beaing can be use again by gining. eaings installe on the backing shaft come in cylinical olle beaing an long cylinical olle beaing. Eithe of both type beaings is use appopiately epening on the chaacteistics of olling mills. Above all, the cylinical olle beaing is most commonly use. These beaings ae commonly use fo the backing shafts of multi-oll mills

228 Cylinical olle beaings fo the backing shafts of multi-oll mills C f a H 1 T esign 1 esign 2 esign 3 esign 4 esign 5 esign 6 esign 7 esign 8 esign 9 esign 1 esign 11 ounay imensions asic loa atings Fatigue (kn) loa limit T C 1 C C (kn) C u eaing No. esign eaing section height at the time of manufactue H Compatible olling mill moel Numbe of beaings use C846A ZR N1226V ZR24 24, C ZR C169LS ZR C169AS ZR33 32, 48, C191NS ZR C2312KS ZR23 32, 4, C231NS ZR C238S ZR23 12(36) C2312MS ZR C316S ZR22 4, C317MS ZR22 4, C317KS ZR22 4, C41217S+P ZR21 4, C41224KS ZR21 32, C41171S ZR21 48, C41171AS ZR21 48, C41171KS ZR C41224QS ZR21 4, C128S ROLL MILL C1285S ROLL MILL C1695S ROLL MILL 2(32) C171S ROLL MILL 1(34)

229 Cylinical olle beaings fo the backing shafts of multi-oll mills C f a H 1 T esign 1 esign 2 esign 3 esign 4 esign 5 esign 6 esign 7 esign 8 esign 9 esign 1 esign 11 ounay imensions asic loa atings Fatigue (kn) loa limit T C 1 C C (kn) C u eaing No. esign eaing section height at the time of manufactue H Compatible olling mill moel Numbe of beaings use C231S ROLL MILL 24(34) C26125S ROLL MILL C2695S ROLL MILL C2615S ROLL MILL C2613S ROLL MILL C28165S ROLL MILL 1(34) C28165S ROLL MILL 14(38) C35165AS ROLL MILL 24(34) C35175S ROLL MILL 24(38) C169S ROLL MILL 8(44) C1611S ROLL MILL 36(44) C2295S ROLL MILL C2213AS ROLL MILL 32, C2614S ROLL MILL C177S ROLL MILL C2294S ROLL MILL C2294/96S ROLL MILL C313S ROLL MILL C313S ROLL MILL C3132AS ROLL MILL

230 These beaings ae esigne to suppot the main cuttes of tunnel-boing machines. ( TR T (tiple-ow combine olle type) (page 456) The TR T slewing im beaing is a tipleow combine cylinical olle beaing. This beaing is povie with vaious featues equie to suppot the main cuttes of tunnelboing machines, incluing supeio impact esistance, high loa atings, an excellent sealing pefomance. When use with foce oil ciculation, this beaing is povie with oil supply an oil ain pots. As the sealing mechanism of this beaing, a labyinth, ust seal, o pessue-esistant seal featuing high sealing pefomance (esistant to a static pessue of.3 MPa) can be selecte, epening on the lubication metho use. Fo convenience of tanspotation, TR T beaings with the beaing ings split cylinically into two o fou pats ae also available (SP/ TR T). ( 2TR (ouble-ow tapee olle type) (page 464) The 2TR slewing im beaing is a oubleow tapee olle beaing. To ensue high axial loa atings, this beaing featues a lage contact angle. Lage-size olles ae povie on the axial loa-accommoating sie. The beaing ing on the non-gea sie is mae fom beaing steel. It is teate though nomal haening, so theefoe oes not have any "soft zone," which an inuction-haene beaing may have, thus eliminating limits in etemining the location of the non-gea-sie beaing ing on machines o equipment. The 2TR beaing was evelope to suppot the main cuttes (oil bath lubication) of tunnelboing machines

231 Slewing im beaings fo tunnel-boing machine TR T type (With intenal gea) a 2 55 ~ 5 2 mm ÉgÉìÉlÉãå@êiã@ópéðéÛ TR-Tå`ì éï n a - a, a1 tappe holes a L a Oa o n a - a n a - a, a1 tappe holes H h a t a b h i t a t a1 t i1 t a1 t i1 n i - i L i O i esign 1 o U i i t i n i - i, i1 tappe holes t i n i - i, i1 tappe holes esign 2 esign 3 eaing No. Outsie esign ia. oe Height Gea ata imensions Mounting-hole of Mounting-hole of asic static Gea specifications ia. (pessue angle 2 ) oute ing inne ing Rolle axial loa Aenum Inuction haene Moule No. of Qty. Qty. PC ating moification a i H o b h tooth flanks tooth a h i o O a O i U i L coefficient a n a a t a a1 t a1 L i n i i t i i1 t i1 C a (kn) an bottoms (Refe.) TR296TGS 1 1) φ24 11 M φ # 2 15 TR2156TGS-1 1 2) φ24 12 M φ # 2 14 TR2176TGS 1 1) φ24 11 M φ # 2 2 TR216TGS φ M φ # 2 48 TR224TGS 1 1) φ24 11 M φ # 2 36 TR2296ATGS-1 1 2) φ24 11 M φ # 2 36 TR228TG φ M φ # 4 47 TR2674TGS φ φ33 3 M # 3 79 TR2816TGS φ3 155 M φ # 5 24 TR296TGS φ M φ # 6 57 TR38TGS φ M M # 6 54 TR324ATGS φ M φ # 7 12 TR325TGS φ M φ # 6 97 TR3834TGS φ M φ39 4 M # 8 12 TR3996TGS φ M φ39 5 M # 1 5 TR4176ATGS φ48 23 M φ # 6 97 [Notes] 1) Without oil seals. 2) With seal uppe sie only

232 Slewing im beaings fo tunnel-boing machine TR T type (With extenal gea) a ~ 4 55 mm ÉgÉìÉlÉãå@êiã@ópéðéÛ TR-Tå`äOéï o n i - i, i1 tappe holes O i L i i t b i H h i h a H b H b t i1 o n i - i, i1 tappe holes t i t i1 o n i - i, i1 tappe holes t i t i1 eaing No. Outsie esign ia. n a - a a esign 1 o U a L a O a n a - a, t a epth n a - a esign 2 esign 3 oe Height Gea ata imensions Mounting-hole of Mounting-hole of asic static Gea specifications ia. (pessue angle 2 ) oute ing inne ing Rolle axial loa Aenum Inuction haene Moule No. of Qty. Qty. PC ating moification a i H o b h tooth flanks tooth a h i o O a O i U a L coefficient a n a a t a L i n i i t i i1 t i1 C a (kn) an bottoms (Refe.) TR26TAGS φ φ3 155 M # 3 78 TR215TAGS φ φ M # 4 67 TR245TAGS φ φ M # 6 32 TR22ATAG φ φ M # 8 7 TR235TAGS φ φ M # 4 98 TR251CTAGS φ φ M # 6 66 TR2475TAGS φ φ M # 7 8 TR2475TAGS φ φ M # 8 57 TR2735TAGS φ φ M # 7 7 TR276TAGS φ φ M # 1 9 TR287TAGS φ φ M # 9 39 TR299TAG M φ M # 8 38 TR346TAGS 1 1) φ φ33 14 M # 4 35 TR34TAGS φ φ M # 11 3 TR333TAGS φ φ M # 14 8 TR325TAGS φ φ48 32 M # 25 6 TR345TAG φ φ48 36 M # 21 TR36ATAGS φ φ M # 16 1 [Note] 1) Without oil seals

233 Slewing im beaings fo tunnel-boing machine TR T type (With extenal gea) a ~ 7 2 mm o n i - i, i1 tappe holes O i L i i t b i H h i h a H b H b t i1 o n i - i, i1 tappe holes t i t i1 o n i - i, i1 tappe holes t i t i1 eaing No. Outsie esign ia. n a - a a esign 1 o U a L a O a n a - a, t a epth n a - a esign 2 esign 3 oe Height Gea ata imensions Mounting-hole of Mounting-hole of asic static Gea specifications ia. (pessue angle 2 ) oute ing inne ing Rolle axial loa Aenum Inuction haene Moule No. of Qty. Qty. PC ating moification a i H o b h tooth flanks tooth a h i o O a O i U a L coefficient a n a a t a L i n i i t i i1 t i1 C a (kn) an bottoms (Refe.) TR3915TAGS φ φ M # 16 5 TR475TAGS φ φ M # 11 8 TR421TAG φ φ6 297 M # 17 5 TR4555ATAGS φ φ M # 19 4 TR46TAG φ φ M # 19 7 TR451TAG φ φ6 3 M # 22 2 TR585TAG φ φ M # 46 [Note] 1) Without oil seals

234 Slewing im beaings fo tunnel-boing machine SP/TR T type (Splitte ace an with extenal gea) a 2 95 ~ 7 14 mm ÉgÉìÉlÉãå@êiã@ópéðéÛ SP/TR-Tå`äOéï o n i - i, i1 tappe holes O i L i i n i - i, i1 tappe holes H ha b t i h i t i t i1 t i1 n a - a a o U a L a O a n a - a esign 2 (ouble split type) quate split type ouble split type esign 1 (quate split type) eaing No. Outsie oe Height Gea ata imensions Mounting-hole of Mounting-hole of asic static Gea specifications (Refe.) esign Moule No. of Qty. Qty. PC ating ia. ia. (pessue angle 2 ) oute ing inne ing Rolle axial loa Inuction haene tooth flanks a i H o b h tooth a h i o O a O i U a L a n a a L i n i i t i i1 t i1 C a (kn) an bottoms SP/TR22ATAG φ φ5 265 M # 8 7 SP/TR443TAG φ φ62 28 M # 22 3 SP/TR486TAG φ φ M # 28 SP/TR56TAG φ φ M # 29 1 SP/TR56TAG φ φ62 3 M # 3 SP/TR56TAG φ φ62 3 M # 29 7 SP/TR579TAG φ φ M #

235 Slewing im beaings fo tunnel-boing machine 2TR type (with intenal gea) a 2 58 ~ 3 8 mm ÉgÉìÉlÉãå@êiã@ópéðéÛ 2TRå`ì éï a O a1 o o i n a - a L a H b h i n i - i, t i epth O i O a2 L i U i n i - i, t i epth esign 2 esign 1 eaing No. Outsie esign ia. oe ia. Oute ing with a i H o Moule No. of tooth Gea ata imensions Mounting-hole of Mounting-hole of asic static Gea specifications (pessue angle 2 ) oute ing inne ing axial loa Inuction haene Qty. Qty. ating b h i o O a1 O a2 O i U i tooth flanks L a n a a L i n i i t i C a (kn) an bottoms (Refe.) 2TR248-1CS M # TR2376CS φ M # TR2448-1CS M # TR245CS M # 4 2 2TR3ACS φ M # 3 3 2TR318-1CS M # TR3216CS M #

236 Othe poucts Spheical olle beaing fo win tubine geneato main shaft ack-up oll units fo hot levele L R lae Roto eaing No. Asynchonous geneato Gea box Housing Asynchonous geneato beaing Insulate hybi ceamic beaing Rea sie main shaft beaing Spheical olle beaing Font sie main shaft beaing Spheical olle beaing Stuctue of win tubine geneato ounay imensions eaing No. ounay imensions / / / / Featues of spheical olle beaing fo win tubine geneato main shaft The beaing, featuing supeio aial loa ating, can accommoate aial loa an axial loa in both iections. Optimization of aceway pofile allows stable otation pefomance. It absobs misaligement in mounting an eflection. (Allowable aligning angle : 1 o moe) eaing No. ounay imensions 24/ / / / / / ounay imensions asic loa atings eaing No. (kn) R L C C RM783C RM962A RM RM RM782H RM RM821C

237 Othe poucts ack-up oll units fo tension levele T H P HW TW F HW P Type 1 H S S H Type 2 ounay imensions F S HW P TW H eaing No. ounay imensions asic loa atings eaing No. (kn) Types T H C C TLW TL TL TL TL TL TLW TLW TL TLW TL TLW ounay imensions asic loa atings eaing No. (kn) Types T H C C TLW65155A TL TLW65258A TL TLW75155E TL7517A TLW75258E TL75265A TLW TLW TLW13285E TLW1345E WTL3125S WTL315S8A WTL38125AS12F WTL3815S WTL4125AS12E WTL415AS WTL4619S WTL5125S WTL515AS WTL5219S WTL6125S12E WTL615S WTL619S WTL8125S WTL815S WTL1125S WTL115S

238 Othe poucts Lae beaing fo convete A Tunnion split beaing fo convete Fixe sie Fee sie In integal type beaings, if they ae equie to be eplace at fixe sie, all the tilting units suouning the beaings must be emove, an exceeingly majo eplacement wok has been equie. Use of split beaing enables easy hanling of beaings an easy maintenance in the futue. C ounay imensions oe Outsie Inne ing Oute ing iamete iamete with with eaing No. asic loa atings (kn) C C Convete capacity (ton) Lae beaings smoothly absob (let off) themal expansion of the tunnion ing uing opeation SP/92532W33CC SP/SR75W33-1C Lae SP/SR125W33-1C SP/SC14CS ounay imensions asic static loa ating eaing No. (kn) A C C Convete capacity (ton) THP83X THP28X THP3X THP4X

239 Othe poucts Seale beaing fo sintee equipment Spheical olle beaings fo shake sceens eaing fo pessue olle Seale type ouble-ow cylinical olle beaing C Wheel beaing Seale type ouble-ow tapee olle beaing C 22326ROVSW52 C = 948 kn C = 1 2 kn Pessue olle Wheel eaing fo pessue olle Special seals ae povie on both sies to pevent ingess of sintee usts. Special heat esistant gease withstaning high tempeatue an long use is aopte. High loa ating full complement type. Thickness is optimize to secue stength of oute ing. Intenal cleaance of beaing is optimize. Wheel beaing The seal mechanism pevents ingess of foeign mattes into beaings. Special heat esistant gease withstaning high tempeatue an long use is aopte. Cowning is optimize to accommoate heavy loa. Intenal cleaance of beaing is optimize. eaing with the inne ing having locating snap ing to impove etofitting pefomance is also available. eaing No. ounay imensions eaing No. Featues of the beaings fo shake sceens (1) Consieing lubicant flow une vibation an lubicating status of sliing suface, oute ing guie cage in special pofile is use. (2) The cage is mae of high-tensile bass casting fo sufficient stength an esistance to wea. (3) While the beaing is otate, peipheal spee iffeence occus to the ouble ow olles. To pevent amages to cage incluing wea an beakage, sepaate an non-incopoate, pong type machine cage is use. (4) Fo smooth olling motion of olles, asymmetical olles having cone cente ae aopte. (5) Especially, beaing outsie iamete toleance is hel to a small allowable vaiation. (6) C3 o C4 beaing intenal cleaance is use. ounay imensions eaing fo pessue olle Wheel beaing 2232RROVSW ROVSW ounay imensions asic loa atings ounay imensions asic loa atings 22322RROVSW ROVSW eaing No. (kn) eaing No. (kn) 22324RROVSW ROVSW C C C C C C 22326RROVSW ROVSW CS21132V T18168A-1RS ROVSW ROVSW CS2115V T2181RS ROVSW CS2514V T2229RS eaing numbe of spheical olle beaings (mainly 223 seies) shoul be followe by "R (RR) OVS W52"

240 Othe poucts Regining jigs fo beaings fo backing shafts TYPE 1 eaing Hole fo wok caie Hyaulic chambe This type is suitable to beaings with the oute ing with ibs an with a boe iamete no less than 7 mm. This jig equies holes fo wok caie on the en face of the oute ing. Oil / ai lubicato fo steel making an olling equipment High sealing pefomance Elimination of ingess of foeign mattes by pessue in chock (housing) High eliability of lubication Supeio lubicating pefomance by using oil of high viscosity an synthetic oil Clean woking envionment Clean envionment by ecoveing oil Oil / ai inlet Oil / ai istibuto Oil / ai Oil TYPE 2 Oute ing clamps eaing Oute ing clamps Oil / ai istibuto Ai Mixing panel Final lubicating point Oil / ai This jig is suitable with beaings fo ZR21 an ZR22 types. This jig is suitable with beaings with the oute ing without ibs. Pessue senso Pessue switch Oil Ai asic composition The egining jig gins the outsie sufaces of beaings use on the backing shafts of multi-oll mills with high pecision. The jig hyaulically gins the outsie suface while tuning the oute ing an etaining the inne ing stationay, while it completely nullifies any cleaance on the fitting suface between the jig an beaing an the intenal cleaance of the beaing, minimizing aial unout. The jig gins beaing assemblies without nee of isassembly, causing impovement in wokability of installation an emoval. Main specifications Lubicate object Tank capacity Numbe of lubicating points Recovey tank Pump unit Rolling mill oll neck beaing Rolling mill auxiliay oll beaing Continuous casting machine guie oll beaing Fee oll beaing, etc. Fom 25 to points o moe ae available Ai unit Contol panel y ai Main unit Alam unit Respective sections in main unit En of oil an ai piping Lubicate oil q'ty Q =.85 R/A Q : Lubicate oil q'ty cm 3 /hou : eaing boe iamete mm R : eaing ow numbe A : Spee coefficient (nomally A = 5)