Ceramic&Exsev bearing series

Transcription

1 Ceamic&Exsev beaing seies Exsev beaings fo use in a vacuum envionment Moe and moe beaings ae being used in exteme special envionments, such as in a vacuum, o in a clean, coosive, o heated place. In some cases beaings ae equied to be insulated o antimagnetic. Applications of beaings in such envionments ae inceasing in the field of state-of-the-at technology, e.g. vacuum equipment, aeospace equipment and semi-conducto poduction facilities. eaings made of conventional mateials and lubicants can hadly meet these new needs. JTEKT has succeeded in developing a seies of beaings fo use in exteme special envionments, having stated fom the study of the vey basics of mateials and testing of thei pefomance unde vaious sevee conditions. oe diamete 4 4 mm Exsev beaings fo use in a clean envionment oe diamete 4 4 mm Ceamic beaings JTEKT has standadized the following beaings as the "Koyo beaing seies". Exsev beaings fo use in a clean envionment Designed fo use in a vacuum. The fiction suface of the beaing inteio is coated with solid lubicant (o soft metal). eaings pe-lubicated with special gease ae also available. Exsev beaings fo use in a vacuum envionment Poduce insignificant contamination, povided with olling elements and a cage made of self-lubicating mateials. Optimal fo use in envionments which need to be clean. oe diamete 4 12 mm Linea ball beaings fo vacuum all complement boe diamete 3 4 mm Ceamic beaings Ceamic ings and olling elements (silicon nitide Si 3 N 4 ) ensue excellent pefomance in vaious exteme special envionments. Fo details, efe to JTEKT sepaate catalog "Ceamic beaings and beaings fo exteme special envionments" (CAT. NO. 24E). C 1 C 2

2 The chat below summaizes the EXSEV beaing seies and the conditions in which each opeates successfully. Mateials and lubicants which ae esistant to cetain special conditions ae listed in Tables 1 and 2. Majo Koyo EXSEV beaing seies made of these mateials and lubicants ae listed in Table 3. Vacuum envionment Clean envionment High-tempeatue heated envionment Coosive envionment Exsev beaings fo use in a vacuum envionment Exsev beaings fo use in a clean envionment Ceamic beaings Table 1 EXSEV beaing mateials Insulation Nonmagnetism Light weight Solid lubicant Lubicant Table 2 EXSEV beaing lubicants Opeating tempeatue ange ; Vacuum gease 3 to + 2 Polytetafluooethylene esin (PTFE) Molybdenum (MoS2 ) disulfide 1 to to + 3 Vacuum esistance(oom tempeatue) Pa Atmospheic pessue(1 5 ) to 1 5 Atmospheic pessue to 1 5 Atmospheic pessue to 1 5 Steam pessue at high tempeatue Pa Lead 1) (Pb) 2 to to (3 C) Silve 1) (Ag) 2 to to (55 C) Remaks [Note] 1) Rolling elements o beaing ings ae coated using the special ion plating method JTEKT developed. [Remak] The lubicants in the table above ae usually applied to beaings fo use in a vacuum. The most suitable one should be selected in consideation of the vacuum condition, tempeatue, and whethe eactive gas o inet gas exists. # Good % Fai No good Not to be used when gease affects opeating envionment. Highly esistant to chemicals and highly insulating. Suitable when the envionment epeats altenation between the atmosphee and a vacuum. Fiction toque is low even in a vacuum. Not suitable fo use in ai at high tempeatue. Low fiction toque. Not suitable fo use in ai. Not suitable fo use in ai o in coosive gas. eaing mateial Component Opeating tempeatue ange [Notes] 1) A lage Young's modulus indicates highe igidity. 2) A smalle coefficient of linea themal expansion indicates a geate dimensional stability unde heating. ; Vacuum esistance (oom tempeatue) Pa Density g/cm 3 Young's 1) modulus GPa Coefficient 2) of linea themal expansion 1 6 / ; Coosion esistance Used to poduce : Stong acid liquid Molten metal Vacuum beaings Matensitic stainless steel ' ' 25 to + 4 Atmospheic pessue(1 5 )to % # ' ' ' Pecipitation hadening stainless steel ' ' 25 to + 4 Atmospheic pessue to # % # # # # ' ' High speed tool steel ' ' 25 to + 55 Atmospheic pessue to % # ' ' Ceamics (Si 3 N 4 ) ' ' 27 to + 8 Atmospheic pessue to # # # # # # % # # # ' Gaphite (GF) ' + 5 max # # # # # # # # # # # # ' Reinfoced fluoocabon esin (FA) ' 1 to + 2 Atmospheic pessue to # # # # # # # # # # # ' ' Reinfoced fluoocabon esin (PT) ' 1 to + 2 Atmospheic pessue to # # # # # # # # # # # ' Reinfoced PEEK esin (PN) ' 1 to + 3 Atmospheic pessue to # # # # # # # # # # # ' ' Austenitic stainless steel ' ' 2 to + 3 Atmospheic pessue to # # # # % ' ' ' (Ref.) High cabon chomium beaing steel eaing ing Rolling element Cage Shield Selflubication ' ' 2 to + 12 Atmospheic pessue to Insulation Nonmagnetism Wate Sea wate Alkalescent liquid Weak acid liquid Stong alkali liquid Sulfuic acid Hydochloic acid Al Zn Fe Hydogen fluoide Ceamic beaings Clean beaings C 3 C 4

3 Table 3 Koyo EXSEV beaing seies models and types Exsev beaings fo use in a vacuum envionment Exsev beaings fo use in a clean envionment Ceamic beaings 4) Chaacteistics(selective points) Vacuum esistance 1) Opeating tempeatue ange, ; Cleanness Coosion esistance 2) Running fiction toque Othes Repeated altenation between atmospheic pessue and medium vacuum envionments Repeated altenation between atmospheic pessue and high vacuum envionments Fom high vacuum to ulta-high vacuum Repeated altenation between atmospheic pessue and medium vacuum envionments Repeated altenation between atmospheic pessue and medium vacuum envionments atmospheic pessue 3 to to to to to to to to to max. (class 1 5) ) class 1 5) # # # # " Low toque Low toque Extemely low toque Unstable fo use with oxygen o coosive gas Coosion esistant nonmagnetism Insulation High tempeatue DL beaing MO beaing WS beaing MG beaing Clean po PRA beaing Clean po beaing High tempeatue clean po beaing Hybid ceamic beaing Hybid ceamic beaing Hybid ceamic beaing Hybid ceamic beaing eaing types Mateials Inne ing and oute ing Rolling elements (balls o olles) Cage Lubicant Applications SV...ST SE...STMSA7 SE...STWS SE...STMG3 SE...STPRA SE...STPR SE...STPR 3NC...MD4FA 3NC...YH4FA 3NC...FG 3NC...HT4GF Vacuum gease Vacuum pump, geneal vacuum equipment Austenitic stainless steel Matensitic stainless steel Tungsten disulfide (WS) Cage coated with molybdenum Self-lubication 6) disulfide(mos 2 ) P-CVD equipment fo manufactue of semiconductos and electonic pats, spatteing equipment Austenitic stainless steel alls coated with 3) silve(ag) Electon beam epitaxial equipment Matensitic stainless steel Matensitic stainless steel Austenitic stainless steel Semiconducto manufactuing Pecipitation hadening stainless steel Food o chemical manufactuing equipment Non-magnetic stainless steel Fluoocabon esin (FA) Fluoocabon-base polymeic coating Self-lubication 6) Vacuum Self-lubication 6) gease Vacuum equipment Ceamics High cabon chome beaing steel Polyamide esin Motos High speed tool steel Gaphite (GF) Heat oll heat teatment funaces [Notes] 1) Vacuum (pessue) is geneally gaded as follows : Low vacuum Pa Medium vacuum Pa High vacuum Pa Ulta-high vacuum 1 5 Pa o less Extemely high vacuum 1 8 Pa o less (Atmospheic pessue 1 5 Pa) 2) The coosion esistance column shows geneal evaluations. Maks """ and "#", espectively, denote "excellent", "good", and "fai". Refe to Table 1 fo the coosive mateials concened. 3) These soft metals ae applied by the special ion plating method JTEKT developed, so that they featue excellent bonding stength, extending the sevice life of beaings. 4) When highe coosion esistance, nonmagnetism and heat esistance ae equied, Full Ceamic eaings should be used. Please consult with JTEKT fo details. Ceamics can also be used to poduce many types of beaings, such as angula contact ball beaings and cylindical olle beaings. 5) These evaluations indicate the cleanness aound the beaing, o in the equipment inteio. Cleanness is lagely dependent on the amount of dit poduced by opeation of the beaing. The suffixed numbes efe to amounts of dit, and the smalle the numbe is, the less dit poduced by the beaing. [Ex.] Class 1 thee ae less than 1 paticles.5 μm o lage in diamete in a 1-cubic-foot space.(as specified in USA standads FED-STD-29D.) 6) ecause the cage is made fom selflubicating mateial. C 5 C 6

4 Life of EXSEV eaings EXSEV beaings, lubicated with a solid lubicant, ae usually used unde elatively light load conditions, such as 1% of thei static load atings o less. These beaings can maintain stable pefomance as long as the solid lubicant is maintained. Once the lubicant weas out, metallic contact occus, which inceases otational fiction toque and shotens sevice life. Sevice life depends on use conditions. At pesent, it is not possible to pedict thei sevice life unde vaied use conditions. Howeve, based on a vaiety of expeiments and tests, JTEKT has established an expeimental fomulae to pedict the lives of beaings. The fomulae is descibed in the following subsections fo efeence only. (1) Life of MG beaings consisting of silve-coated balls The life of MG beaings (JTEKT seial numbe, SE...STMG3) can be pedicted accoding to the following fomula; L vh = b 1 b 2 b 3 (Cv/P) q /n (1) Equivalent load / load ating.1 Special polymeic fluoide.8.6 PTFE Total numbe of otation to toque life Fig. 1 Mean life of Coated eaings whee, L vh : 9% eliable life, h C v : asic dynamic load ating of vacuum-esistant ball beaings (1/13 of basic dynamic load ating of steel beaings of equal size), N P : Dynamic equivalent load, N q : Index, q = 1 n : Rotational speed, min 1, limited to 1 n 1 b 1 : Rotational speed-dependant coefficient b 1 = n + 1 b 2 : Mateial coefficient b 2 =1 (fo beaings ion-plated with silve by the special ionplating pocess) b 3 : Coefficient fo atmospheic pessue and tempeatue b 3 =1 (fo 1 3 Pa and oom tempeatue) (2) Fo beaings coated with PTFE o special polymeic fluoide Fo those beaings coated with PTFE (MP7) o those coated with the special polymeic fluoide (PR), the following fomula gives thei mean life fo efeence only. (See Fig. 3.8.) L av = b 2 (Ce/P) d.16667/n (2) whee, L av : Aveage life, h b 2 : Lubication coefficient 6 fo beaings coated with PTFE 42 fo beaings coated with special polymeic fluoide C e :.85 times the basic dynamic load ating of steel beaings of equal size, N P : Dynamic equivalent load, N d : Coefficient, d = 3 n : Rotational speed, min 1 (3) Ceamic beaing sevice life Ceamic beaings ae used fo a vaiety of pu-poses, and thei specifications diffe case by case. Theefoe, thee is no common system fo estimating thei sevice lives. The estimation of full ceamic beaing sevice life is especially difficult at pesent fo theoetical easons, and equies futhe study. JTEKT estimates the full ceamic beaing sevice life on a case by case basis accoding to the custome equest, based on expeience and expeimental data. Fo hybid ceamic beaings, in many cases the conventional equation (2) below based on olling contact fatigue is used to estimate sevice life, whee gease o oil can be used fo lubication and, at the same time, beaings ae equied to be insulating and antimagnetic, o to be highly igid and have excellent high-speed pefomance. This equation is called the coected ated life estimation equation. (efe to p. A 26.) L na = a 1 a 2 a 3 L 1 = a 1 a 2 a 3 (C/P) p (3) In an envionment whee a lubicating film is fomed popely, the beaing chaacteistic coefficient a 2 is expected to be equivalent to o lage than that of conventional steel beaings. Howeve, given cuent conditions, coefficient a 2 is counted as : a 2 = 1. asic dynamic load ating C is teated as being equivalent to that of steel beaings of the same type and size. When a satisfactoy oil film is fomed, the opeating condition coefficient a 3 is counted as : a 3 > 1. C 7 C 8

5 beaing seies fo use in a vacuum envionment d 4 17 mm u D u d (Refe.) Open type Full complement type Designed to accommodate only adial load. Theefoe, most suitable fo highspeed otation. ounday dimensions eaing No. (Refe.) asic beaing Atmospheic pessue to 1 5 Pa 1 3 to 1 1 Pa asic load atings (kn) d D 1) With vacuum MoS 2 coating Ag ion-plating eaing No. min. gease filled (cage) (balls) C C (.15) SVWML 41 ZZST SEWML 41 ZZSTMSA7 WML SV 64 ZZST SE 64 ZZSTMSA7 SE 64 ZZSTMG SV 624 ZZST SE 624 ZZSTMSA7 SE 624 ZZSTMG SV 65 ZZST SE 65 ZZSTMSA7 SE 65 ZZSTMG SV 625 ZZST SE 625 ZZSTMSA7 SE 625 ZZSTMG (.1) SVWML 61 ZZST SEWML 61 ZZSTMSA7 WML (.15) SVWML 612 ZZST SEWML 612 ZZSTMSA7 WML SV 686 ZZST SE 686 ZZSTMSA7 SE 686 ZZSTMG SV 66 ZZST SE 66 ZZSTMSA7 SE 66 ZZSTMG SV 626 ZZST SE 626 ZZSTMSA7 SE 626 ZZSTMG SV 67 ZZST SE 67 ZZSTMSA7 SE 67 ZZSTMG SV 627 ZZST SE 627 ZZSTMSA7 SE 627 ZZSTMG SV 68 ZZST SE 68 ZZSTMSA7 SE 68 ZZSTMG SV 628 ZZST SE 628 ZZSTMSA7 SE 628 ZZSTMG SV 69 ZZST SE 69 ZZSTMSA7 SE 69 ZZSTMG SV 629 ZZST SE 629 ZZSTMSA7 SE 629 ZZSTMG SV 6 ZZST SE 6 ZZSTMSA7 SE 6 ZZSTMG SV 62 ZZST SE 62 ZZSTMSA7 SE 62 ZZSTMG SV 61 ZZST SE 61 ZZSTMSA7 SE 61 ZZSTMG SV 621 ZZST SE 621 ZZSTMSA7 SE 621 ZZSTMG SV 62 ZZST SE 62 ZZSTMSA7 SE 62 ZZSTMG SV 622 ZZST SE 622 ZZSTMSA7 SE 622 ZZSTMG SV 63 ZZST SE 63 ZZSTMSA7 SE 63 ZZSTMG SV 623 ZZST SE 623 ZZSTMSA7 SE 623 ZZSTMG [Note] 1) The value in ( ) shows the minimum chamfe dimension of open type beaings. If thee is no indication, the value is the same as that of the shielded type (zz). C 9 C 1

6 beaing seies fo use in a vacuum envionment d 2 4 mm u D u d (Refe.) Open type Full complement type Designed to accommodate only adial load. Theefoe, most suitable fo highspeed otation. ounday dimensions eaing No. (Refe.) asic beaing Atmospheic pessue to 1 5 Pa 1 3 to 1 1 Pa asic load atings (kn) d D 1) With vacuum MoS 2 coating Ag ion-plating eaing No. min. gease filled (cage) (balls) C C SV 64 ZZST SE 64 ZZSTMSA7 SE 64 ZZSTMG SV 624 ZZST SE 624 ZZSTMSA7 SE 624 ZZSTMG SV 65 ZZST SE 65 ZZSTMSA7 SE 65 ZZSTMG SV 625 ZZST SE 625 ZZSTMSA7 SE 625 ZZSTMG SV 66 ZZST SE 66 ZZSTMSA7 SE 66 ZZSTMG SV 626 ZZST SE 626 ZZSTMSA7 SE 626 ZZSTMG SV 67 ZZST SE 67 ZZSTMSA7 SE 67 ZZSTMG SV 627 ZZST SE 627 ZZSTMSA7 SE 627 ZZSTMG SV 68 ZZST SE 68 ZZSTMSA7 SE 68 ZZSTMG SV 628 ZZST SE 628 ZZSTMSA7 SE 628 ZZSTMG [Note] 1) The value in ( ) shows the minimum chamfe dimension of open type beaings. If thee is no indication, the value is the same as that of the shielded type (zz). C 11 C 12

7 beaing seies fo use in a clean envionment d 4 (25) mm u D u d ounday dimensions eaing No. <12 C <2 C <26 C Clean Clean Clean d D min. Class1 Class1 Class SE 64 ZZSTPRA SE 64 ZZSTPR SE 64 ZZSTPR SE 624 ZZSTPRA SE 624 ZZSTPR SE 624 ZZSTPR SE 65 ZZSTPRA SE 65 ZZSTPR SE 65 ZZSTPR SE 625 ZZSTPRA SE 625 ZZSTPR SE 625 ZZSTPR SEWML612-1 ZZSTPRA SEWML612-1 ZZSTPR SEWML612-1 ZZSTPR SEW686 ZZSTPRA SEW686 ZZSTPR SEW686 ZZSTPR SE 66 ZZSTPRA SE 66 ZZSTPR SE 66 ZZSTPR SE 626 ZZSTPRA SE 626 ZZSTPR SE 626 ZZSTPR SE 67 ZZSTPRA SE 67 ZZSTPR SE 67 ZZSTPR SE 627 ZZSTPRA SE 627 ZZSTPR SE 627 ZZSTPR SE 68 ZZSTPRA SE 68 ZZSTPR SE 68 ZZSTPR SE 628 ZZSTPRA SE 628 ZZSTPR SE 628 ZZSTPR SE 69 ZZSTPRA SE 69 ZZSTPR SE 69 ZZSTPR SE 629 ZZSTPRA SE 629 ZZSTPR SE 629 ZZSTPR SE 6 ZZSTPRA SE 6 ZZSTPR SE 6 ZZSTPR SE 62 ZZSTPRA SE 62 ZZSTPR SE 62 ZZSTPR SE 61 ZZSTPRA SE 61 ZZSTPR SE 61 ZZSTPR SE 621 ZZSTPRA SE 621 ZZSTPR SE 621 ZZSTPR SE 62 ZZSTPRA SE 62 ZZSTPR SE 62 ZZSTPR SE 622 ZZSTPRA SE 622 ZZSTPR SE 622 ZZSTPR SE 63 ZZSTPRA SE 63 ZZSTPR SE 63 ZZSTPR SE 623 ZZSTPRA SE 623 ZZSTPR SE 623 ZZSTPR SE 64 ZZSTPRA SE 64 ZZSTPR SE 64 ZZSTPR SE 624 ZZSTPRA SE 624 ZZSTPR SE 624 ZZSTPR SE 65 ZZSTPRA SE 65 ZZSTPR SE 65 ZZSTPR C 13 C 14

8 beaing seies fo use in a clean envionment d (25) 4 mm u D u d ounday dimensions eaing No. <12 C <2 C <26 C Clean Clean Clean d D min. Class1 Class1 Class SE 625 ZZSTPRA SE 625 ZZSTPR SE 625 ZZSTPR SE 66 ZZSTPRA SE 66 ZZSTPR SE 66 ZZSTPR SE 626 ZZSTPRA SE 626 ZZSTPR SE 626 ZZSTPR SE 67 ZZSTPRA SE 67 ZZSTPR SE 67 ZZSTPR SE 627 ZZSTPRA SE 627 ZZSTPR SE 627 ZZSTPR SE 68 ZZSTPRA SE 68 ZZSTPR SE 68 ZZSTPR SE 628 ZZSTPRA SE 628 ZZSTPR SE 628 ZZSTPR C 15 C 16

9 Ceamic beaing seies d 4 25 mm u D u d ounday dimensions eaing No. Hybid ceamic type Full ceamic type d D High tempeatue Fo coosion High tempeatue Fo coosion esistance/ Non magnetism Insulation min. (up to 5 C) esistance (up to 8 C) Non magnetism/insulation NC64MD4 3NC64YH4 3NC64ST4 NC NC624MD4 3NC624YH4 3NC624ST4 NC NC65MD4 3NC65YH4 3NC65ST4 NC NC625MD4 3NC625YH4 3NC625ST4 NC NC66HT4 GF 3NC66MD4 3NC66YH4 3NC66ST4 NC76V NC NC626HT4 GF 3NC626MD4 3NC626YH4 3NC626ST4 NC726V NC NC67HT4 GF 3NC67MD4 3NC67YH4 3NC67ST4 NC77V NC NC627HT4 GF 3NC627MD4 3NC627YH4 3NC627ST4 NC727V NC NC68HT4 GF 3NC68MD4 3NC68YH4 3NC68ST4 NC78V NC NC628HT4 GF 3NC628MD4 3NC628YH4 3NC628ST4 NC728V NC NC69HT4 GF 3NC69MD4 3NC69YH4 3NC69ST4 NC79V NC NC629HT4 GF 3NC629MD4 3NC629YH4 3NC629ST4 NC729V NC NC6HT4 GF 3NC6MD4 3NC6YH4 3NC6ST4 NC7V NC NC62HT4 GF 3NC62MD4 3NC62YH4 3NC62ST4 NC72V NC NC61HT4 GF 3NC61MD4 3NC61YH4 3NC61ST4 NC71V NC NC621HT4 GF 3NC621MD4 3NC621YH4 3NC621ST4 NC721V NC NC62HT4 GF 3NC62MD4 3NC62YH4 3NC62ST4 NC72V NC NC622HT4 GF 3NC622MD4 3NC622YH4 3NC622ST4 NC722V NC NC63HT4 GF 3NC63MD4 3NC63YH4 3NC63ST4 NC73V NC NC623HT4 GF 3NC623MD4 3NC623YH4 3NC623ST4 NC723V NC NC64HT4 GF 3NC64MD4 3NC64YH4 3NC64ST4 NC74V NC NC624HT4 GF 3NC624MD4 3NC624YH4 3NC624ST4 NC724V NC NC65HT4 GF 3NC65MD4 3NC65YH4 3NC65ST4 NC75V NC NC625HT4 GF 3NC625MD4 3NC625YH4 3NC625ST4 NC725V NC625 C 17 C 18

10 Ceamic beaing seies d 3 4 mm u D u d ounday dimensions eaing No. Hybid ceamic type Full ceamic type d D High tempeatue Fo coosion High tempeatue Fo coosion esistance/ Non magnetism Insulation min. (up to 5 C) esistance (up to 8 C) Non magnetism/insulation NC66HT4 GF 3NC66MD4 3NC66YH4 3NC66ST4 NC76V NC NC626HT4 GF 3NC626MD4 3NC626YH4 3NC626ST4 NC726V NC NC67HT4 GF 3NC67MD4 3NC67YH4 3NC67ST4 NC77V NC NC627HT4 GF 3NC627MD4 3NC627YH4 3NC627ST4 NC727V NC NC68HT4 GF 3NC68MD4 3NC68YH4 3NC68ST4 NC78V NC NC628HT4 GF 3NC628MD4 3NC628YH4 3NC628ST4 NC728V NC628 C 19 C 2

11 Refe. Hybid ceamic beaings (fo high speed applications) d 15 (75) mm u D u d u D u d u D u d 7,72 seies HAR,9 seies NU 1 seies * This type of beaing is mainly used in high speed otating pats such as machine tool spindles. Since olling elements ae made of ceamics, this type of beaing is shown hee, even though not designed as EXSEV beaing seies. (eaing ings ae made of high cabon chomium beaing steel) ounday dimensions eaing No. (Refe.) asic beaing Cylindical eaing asic load atings eaing asic load atings Angula contact ball beaings olle beaings No. (kn) No. (kn) d D eaing No. asic load atings (kn) 1 min. min. 7,72 seies HAR,9 seies NU 1 seies 7,72 C C HAR,9 C C NU 1 C C NC 72 FT NC 722 FT NC 74 FT NC 724 FT NC 75 FT NC 725 FT NC 76 FT 3NC HAR6C FT HAR6C NC 726 FT NC 77 FT 3NC HAR7C FT HAR7C NC 727 FT NC 78 FT 3NC HAR8C FT HAR8C NC 728 FT NC 79 FT 3NC HAR9C FT HAR9C NC HAR91C FT HAR91C NC 71 FT 3NC HAR1C FT 3NC NU11 FY HAR1C NU NC HAR911C FT HAR911C NC 711 FT 3NC HAR11C FT 3NC NU111 FY HAR11C NU NC HAR912C FT HAR912C NC 712 FT 3NC HAR12C FT 3NC NU112 FY HAR12C NU NC HAR913C FT HAR913C NC 713 FT 3NC HAR13C FT 3NC NU113 FY HAR13C NU NC HAR914C FT HAR914C NC 714 FT 3NC HAR14C FT 3NC NU114 FY HAR14C NU NC HAR915C FT HAR915C C 21 C 22

12 Refe. Hybid ceamic beaings (fo high speed applications) d (75) 12 mm u D u d u D u d u D u d 7,72 seies HAR,9 seies NU 1 seies * This type of beaing is mainly used in high speed otating pats such as machine tool spindles. Since olling elements ae made of ceamics, this type of beaing is shown hee, even though not designed as EXSEV beaing seies. (eaing ings ae made of high cabon chomium beaing steel) ounday dimensions eaing No. (Refe.) asic beaing Cylindical eaing asic load atings eaing asic load atings Angula contact ball beaings olle beaings No. (kn) No. (kn) d D NC 715 FT 3NC HAR15C FT 3NC NU115 FY HAR15C NU NC HAR916C FT HAR916C NC HAR16C FT 3NC NU116 FY HAR16C NU NC HAR917C FT HAR917C NC HAR17C FT 3NC NU117 FY HAR17C NU NC HAR918C FT HAR918C NC HAR18C FT 3NC NU118 FY HAR18C NU NC HAR919C FT HAR919C NC HAR19C FT 3NC NU119 FY HAR19C NU NC HAR92C FT HAR92C NC HAR2C FT 3NC NU12 FY HAR2C NU NC HAR921C FT HAR921C NC HAR21C FT HAR21C NC HAR922C FT HAR922C NC HAR22C FT HAR22C NC HAR924C FT HAR924C NC HAR24C FT HAR24C eaing No. asic load atings (kn) 1 min. min. 7,72 seies HAR,9 seies NU 1 seies 7,72 C C HAR,9 C C NU 1 C C C 23 C 24

13 beaing seies Linea ball beaings fo vacuum d 3 6 mm W L W h θ h 1 u D u D 1 u d F W F W Standad type Cleaance adjustable type (AJ) Open type (OP) Shaft dia. ounday dimensions eaing No. asic load atings (kn) d D L W D 1 h h 1 θ Standad type Cleaance adjustable type Open type C C Standad type No. of ball ows Cleaance adjustable Open type type SESDM SESDM SESDM SESDM SESDM 8S SESDM SESDM SESDM12 SESDM12 AJ SESDM12 OP SESDM13 SESDM13 AJ SESDM13 OP SESDM16 SESDM16 AJ SESDM16 OP SESDM2 SESDM2 AJ SESDM2 OP SESDM25 SESDM25 AJ SESDM25 OP SESDM3 SESDM3 AJ SESDM3 OP SESDM35 SESDM35 AJ SESDM35 OP SESDM4 SESDM4 AJ SESDM4 OP SESDM5 SESDM5 AJ SESDM5 OP SESDM6 SESDM6 AJ SESDM6 OP C 25 C 26

14 K-seies supe thin section ball beaings Koyo K-seies supe thin section ball beaings wee developed to meet cuent engineeing needs fo thinne, lighte beaings. They ae used extensively in automation and labo saving equipment, such as industial obots. These beaings ae soted into nine dimension seies accoding to coss-sectional aea. Those of the same dimension seies have an equivalent coss-sectional aea iespective of the boe diamete. They ae available in thee types that diffe in stuctue. Deep goove type Caies adial load, axial load in both diections, and combined loads. Angula contact type Has a 3 contact angle, and caies adial load and axial load in one diection. Two beaings ae usually used togethe facing one anothe. Fou-point contact type Has a contact angle of 3 both to the ight and to the left. Able to cay axial load in both diections. Also able to suppot moment and adial loads. Dimension seies code T A C D Cosssectional dimension = E C (Deep goove type) KTC KAC KC KCC KDC eaing type code A (Angula contact type) KTA KAA KA KCA KDA X (Fou-point contact type) E E E KTX KAX KX KCX KDX oe diamete 25.4 to to to to 762 F G KFC KGC KFA KGA KFX KGX 11.6 to 1 16 KJA...RD J U = 11.1 E = = 12.7 E = KUC...2RD KUX...2RD 11.6 to 34.8 C 27 C 28

15 oe diamete numbe 1 15 Table 1 K-seies supe thin section ball beaings : toleance Single plane mean boe diamete deviation 3 dmp Single plane mean outside diamete deviation 3 Dmp [Notes] Division 1 is fo deep goove type ball beaings. Division 2 is fo angula contact type and fou-point contact type ball beaings. Single inne (oute) ing width deviation 3 s, 3 Cs Radial unout of assembled beaing ing, max. Assembled beaing ing face unout with aceway, max. Inne ing K ia Oute ing K ea Inne ing S ia Oute ing S ea classes K, K1, K2 class class class classes K, K1, K2 class class class classes classes class class K class classes classes class K class div.1 div.2 K3 K4 K6 div.1 div.2 K3 K4 K6 K, K1, K2 K3, K4 K6 div.1 div.2 K3 K1, K4 K2, K6 div.1 div.2 K Same Same as 13 as 42 limit limit 45 values values 45 fo fo adial adial unout unout of of 5 assemblebled 55 assem beaining bea inne oute 65 ing ing classes K1, K4 classes K2, K6 classes K1, K4 classes K, K2 K3, K6 classes K1, K4 8 classes K, K2 K3, K6 Unit : μm oe diamete numbe 1 15 C 29 C 3

16 Table 2 Standad adil intenal cleaance of deep goove and fou-point contact type ball beaings Unit : μm Table 3 Mounting dimensions oe diamete numbe classes K, K1, K2 Deep goove type Fou-point contact type Radial intenal cleaance class K3 class K4 class K Dimension seies eaing type u D a u d a u D a a Unit : mm max. min. min. max. max. T KTC KTA KTX d d d d A KAC KAA KAX d d d d KC KA KX d d d d C KCC KCA KCX d d d d D KDC KDA KDX d d d d F KFC KFA KFX d d d d G KGC KGA KGX d d d d J KJA U KUC KUX a a u d a d d d d C 31 C 32

17 oe diamete numbe Table 4 Shaft diamete and housing boe diamete toleance Inne ing otation [Notes] Division 1 is fo deep goove type ball beaings. Division 2 is fo angula contact type and fou-point contact type ball beaings. Oute ing otation Shaft diamete toleance Housing boe diamete toleance Shaft diamete toleance Housing boe diamete toleance classes K, K1, K2 class K3 class K4 class K6 classes K, K1, K2 class K3 class K4 class K6 classes K, K1, K2 class K3 class K4 class K6 classes K, K1, K2 class K3 class K4 class K6 div.1 div.2 div.1 div.2 div.1 div.2 div.1 div Unit : μm oe diamete numbe C 33 C 34

18 K-seies supe thin section ball beaings open type d 25.4 (114.3) mm u D u d Deep goove type Angula contact type Fou-point contact type ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings eaing eaing eaing (kn) (kn) (kn) Deep Angula Fou-point d D No. No. No. goove contact contact min. C C C C C a C a C C C a C a type type type KTC KTA KTX KTC KTA KTX KAC KAA KAX KC KA KX KAC KAA KAX KC KA KX KAC KAA KAX KC KA KX KAC KAA KAX KC KA KX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX C 35 C 36

19 K-seies supe thin section ball beaings open type d (114.3) (165.1) mm u D u d Deep goove type Angula contact type Fou-point contact type ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings eaing eaing eaing (kn) (kn) (kn) Deep Angula Fou-point d D No. No. No. goove contact contact min. C C C C C a C a C C C a C a type type type KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX C 37 C 38

20 K-seies supe thin section ball beaings open type d (165.1) mm u D u d Deep goove type Angula contact type Fou-point contact type ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings eaing eaing eaing (kn) (kn) (kn) Deep Angula Fou-point d D No. No. No. goove contact contact min. C C C C C a C a C C C a C a type type type KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX C 39 C 4

21 K-seies supe thin section ball beaings open type d mm u D u d Deep goove type Angula contact type Fou-point contact type ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings eaing eaing eaing (kn) (kn) (kn) Deep Angula Fou-point d D No. No. No. goove contact contact min. C C C C C a C a C C C a C a type type type KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KAC KAA KAX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX C 41 C 42

22 K-seies supe thin section ball beaings open type d mm u D u d Deep goove type Angula contact type Fou-point contact type ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings eaing eaing eaing (kn) (kn) (kn) Deep Angula Fou-point d D No. No. No. goove contact contact min. C C C C C a C a C C C a C a type type type KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KC KA KX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KCC KCA KCX KDC KDA KDX KFC KFA KFX KGC KGA KGX KFC KFA KFX KGC KGA KGX KFC KFA KFX KGC KGA KGX C 43 C 44

23 K-seies supe thin section ball beaings sealed type d mm 1 u D u d Deep goove type U size (With seals) Angula contact type J size (With seal) Fou-point contact type U size (With seals) ounday dimensions Deep goove type Angula contact type Fou-point contact type (Refe.) asic load atings asic load atings asic load atings d D 1 eaing No. (kn) eaing No. (kn) eaing No. (kn) Deep Angula Fou-point goove contact contact min. C C C C C a C a C C C a C a type type type KUC4 2RD KJA4 RD KUX4 2RD KUC42 2RD KJA42 RD KUX42 2RD KUC45 2RD KJA45 RD KUX45 2RD KUC47 2RD KJA47 RD KUX47 2RD KUC5 2RD KJA5 RD KUX5 2RD KUC55 2RD KJA55 RD KUX55 2RD KUC6 2RD KJA6 RD KUX6 2RD KUC65 2RD KJA65 RD KUX65 2RD KUC7 2RD KJA7 RD KUX7 2RD KUC75 2RD KJA75 RD KUX75 2RD KUC8 2RD KJA8 RD KUX8 2RD KUC9 2RD KJA9 RD KUX9 2RD KUC1 2RD KJA1 RD KUX1 2RD KUC11 2RD KJA11 RD KUX11 2RD KUC12 2RD KJA12 RD KUX12 2RD C 45 C 46

24 eaings fo machine tool spindles (fo suppot of axial loading) Double diection angula contact thust ball beaings JTEKT supplies double diection angula contact thust ball beaings and ACT type matched pai angula contact ball beaings which ae used with machine tool spindles to suppot axial loading. These beaings wee developed to meet needs which have gown as machine tool spindle otation has become faste and moe accuate. Seveal dimension seies ae available fo selection accoding to opeating conditions. oe diamete mm Matched pai angula contact ball beaing (ACT type) oe diamete 5 17 mm Fo details, efe to JTEKT sepaate catalog "Pecision all and Rolle eaings fo Machine Tools" (CAT. NO. 25E). See also the catalog fo high ability beaings, CAT NO. 26 fo High Ability all eaing Seies Angula Contact all eaings fo Machining Tools. (Refeence) Majo beaing types which ae used to cay adial loading of machine tool spindles ae shown below. Fo futhe details, efe to the specification table fo each type. Angula contact ball beaings Double-ow cylindical olle beaings (fo high-speed applications) 79 C 79 CPA HAR 9 C 7, 7, 7 C 7 CPA HAR C 72, 72, 72 C 72 CPA (high ability ball beaing) NN 3 NNU 49 NN 3 K (Tapeed boe) NNU 49 K (Tapeed boe) Refe to p. 92. fo beaings with ceamic balls, efe to p. C 21. Refe to p C 47 C 48

25 Type Diamete seies 9 Chaacteistics Table 1 eaing types fo suppot of axial loading Double diection angula contact thust ball beaings Suppots axial loading in both diections. Highly igid in the axial diection. eaings with a lage contact angle featue highe igidity, while those with a smalle contact angle featue bette high-speed pefomance. [Notes] 1) These beaings ae usually used in aangement with a doubleow cylindical olle beaing which caies a adial load. Thee ae fou aangement types (q to ) as follows : q Mounted with an NN3K tapeed boe beaing o with an NN3 cylindical boe beaing. The tapeed boe beaing is combined at its smalle side. w Mounted with an NN3K tapeed boe beaing, which is combined at its lage side. e Mounted with an NNU49K tapeed boe beaing o with an NNU49 cylindical boe beaing. The tapeed boe beaing is combined at its smalle side. Mounted with an NNU49K tapeed boe beaing, which is combined at its lage side. 2) The oveall width "2 " of ACT D and ACT D beaings is equivalent to dimension "C 1 " of 2344 beaings. Theefoe, when a 2344 beaing is eplaced with an ACT D o ACT D beaing, change the width of space "A" only. No change is necessay to the spindle o housing dimensions. Matched pai angula contact ball beaings 4 3 ACT D ACT D Fo suppot of axial loading only. Negative toleances ae specified fo the outside diamete. Excellent high-speed pefomance is achieved because of the small contact angle. Intechangeable with 2344 seies beaings. 2) C 1 Space A 2 Space A' Types of 1) aangement with a double-ow cylindical olle beaing q w e Table 2 Double diection angula contact thust ball beaing toleance (1) Inne ing and assembled beaing width Unit : μm Nominal boe diamete d class 5 o equivalent 3 dmp o 3 ds 1) class 4 o equivalent Actual beaing width deviation 3 Ts classes 4 and 5, o equivalent Inne ing width vaiation V s Pependiculaity of inne ing face with espect to the boe S d (2) Oute ing Unit : μm Nominal outside diamete D Single outside diamete deviation 3 Ds ove up to uppe lowe [Remak] Refe to JIS 1514 "adial beaing toleance" class 4 and class 5 (pp. A 54 to A 57, Table 7-3) fo the accuacy of dimensions othe than outside diamete and fo unning accuacy. Assembled beaing inne ing face unout with aceway S ia class 5 o class 4 o class 5 o class 4 o class 5 o class 4 o equivalent equivalent equivalent equivalent equivalent equivalent ove up to uppe lowe uppe lowe uppe lowe max. max. max Nominal outside diamete D 3 Dmp o 3 Ds 2) Oute ing width vaiation classes 5 and 4, o equivalent class 5 o equivalent V Cs class 4 o equivalent Pependiculaity of oute ing outside suface with espect to the face S D class 5 o equivalent class 4 o equivalent Assembled beaing oute ing face unout with aceway S ea classes 5 and 4, o equivalent ove up to uppe lowe max. max. max Shall confom to the toleance S ia on d of the same beaing [Notes] 1) Single plane mean boe diamete deviation o single boe diamete deviation 2) Single plane mean outside diamete deviation o single outside diamete deviation Table 3 ACT seies angula contact ball beaing outside diamete toleance Unit : μm C 49 C 5

26 [Refeence] Axial load and axial displacement The elationship between axial loading and the axial displacement of double diection angula contact thust ball beaings and ACT type angula contact ball beaings is shown below : (1) 2344, 2347 (contact angle 6 ) (2) 2394, 2397 (contact angle 6 ) 8 oe dia. 5 oe dia. No. No. (3) ACT (contact angle 3 ) a) When peload L is applied 14 oe dia. No. (4) ACT (contact angle 4 ) a) When peload L is applied 8 oe dia. No. Amount of axial displacement (μm) , ,18 2,24 3 Amount of axial displacement (μm) Amount of axial displacement (μm) , Amount of axial displacement (μm) Axial load (kn) Axial load (kn) Axial load (kn) Axial load (kn) 12 b) When peload M is applied b) When peload M is applied oe dia. 6 No. oe dia. No Amount of axial displacement (μm) , Amount of axial displacement (μm) Axial load (kn) Axial load (kn) C 51 C 52

27 Double diection angula contact thust ball beaings d mm T 1 w u d b a u D u E W u d u d 1 u D a u d a C Small boe type ounday dimensions asic load atings Limiting speeds eaing No. Dimensions Mounting dimensions Amount of d (kn) (min 1 ) gease fill Lage boe 1 Gease Small boe Lage boe D T C C (cm 3 /ow) type a C a Oil lub. E 1) d a D a a b Small boe lub. type type w d 1 d w min. min. min. max. max. max. type ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ (Refe.) Lage boe type [Note] 1) The dimension E w is used as a efeence fo the ball set outside diamete. C 53 C 54

28 Double diection angula contact thust ball beaings d 11 (24) mm T 1 w u d b a u D u E W u d u d 1 u D a u d a C Small boe type ounday dimensions asic load atings Limiting speeds eaing No. Dimensions Mounting dimensions Amount of d (kn) (min 1 ) gease fill Lage boe 1 Gease Small boe Lage boe D T C C (cm 3 /ow) type a C a Oil lub. E 1) d a D a a b Small boe lub. type type w d 1 d w min. min. min. max. max. max. type ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ (Refe.) Lage boe type [Note] 1) The dimension E w is used as a efeence fo the ball set outside diamete. C 55 C 56

29 Double diection angula contact thust ball beaings d (24) 34 mm T 1 w u d b a u D u E W u d u d 1 u D a u d a C Small boe type ounday dimensions asic load atings Limiting speeds eaing No. Dimensions Mounting dimensions Amount of d (kn) (min 1 ) gease fill Lage boe 1 Gease Small boe Lage boe D T C C (cm 3 /ow) type a C a Oil lub. E 1) d a D a a b Small boe lub. type type w d 1 d w min. min. min. max. max. max. type ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ (Refe.) Lage boe type [Note] 1) The dimension E w is used as a efeence fo the ball set outside diamete. C 57 C 58

30 Matched pai angula contact ball beaings d 3 85 mm b a u D u d u D a u d a ounday dimensions asic load atings Limiting speeds Pemissble Mounting dimensions (kn) (min 1 ) eaing No. 1) axial loads 1 (kn) d a D a a b d D 2 C a C a Gease lub. Oil lub. min. min. (static) min. max. max. max. Envelope volume (cm 3 /ow) (Refe.) (kg/ow) ACT6D ACT6D ACT7D ACT7D ACT8D ACT8D ACT9D ACT9D ACT1D ACT1D ACT11D ACT11D ACT12D ACT12D ACT13D ACT13D ACT14D ACT14D ACT15D ACT15D ACT16D ACT16D ACT17D ACT17D [Note] 1) and no indication befoe matching code in beaing numbes epesent nominal contact angle of 4 and 3 espectively. C 59 C 6

31 Matched pai angula contact ball beaings d 9 18 mm b a u D u d u D a u d a ounday dimensions asic load atings Limiting speeds Pemissble Mounting dimensions (kn) (min 1 ) eaing No. 1) axial loads 1 (kn) d a D a a b d D 2 C a C a Gease lub. Oil lub. min. min. (static) min. max. max. max. Envelope volume (cm 3 /ow) (Refe.) (kg/ow) ACT18D ACT18D ACT19D ACT19D ACT2D ACT2D ACT21D ACT21D ACT22D ACT22D ACT24D ACT24D ACT26D ACT26D ACT28D ACT28D ACT3D ACT3D ACT32D ACT32D ACT34D ACT34D ACT36D ACT36D [Note] 1) and no indication befoe matching code in beaing numbes epesent nominal contact angle of 4 and 3 espectively. C 61 C 62

32 Matched pai angula contact ball beaings d mm b a u D u d u D a u d a ounday dimensions asic load atings Limiting speeds Pemissble Mounting dimensions (kn) (min 1 ) eaing No. 1) axial loads 1 (kn) d a D a a b d D 2 C a C a Gease lub. Oil lub. min. min. (static) min. max. max. max. Envelope volume (cm 3 /ow) (Refe.) (kg/ow) ACT38D ACT38D ACT4D ACT4D ACT44D ACT44D ACT48D ACT48D ACT52D ACT52D ACT56D ACT56D ACT6D ACT6D ACT64D ACT64D [Note] 1) and no indication befoe matching code in beaing numbes epesent nominal contact angle of 4 and 3 espectively. C 63 C 64

33 Pecision ball scew suppot beaings and beaing units Suppot beaings wee developed to suppot pecision ball scew shafts. They have the same stuctue as angula contact thust ball beaings with a contact angle of 6. Suppot beaings oe diamete 17 6 mm Suppot beaing units 6 Have a lage axial load caying capacity. Also able to cay a cetain degee of adial load. Highly igid in the axial diection. Stating toque is small. oe diamete 17 4 mm Suppot beaing units consist of the beaings descibed above and a pecisely pocessed housing. Units with a Koyo pecision ball scew ae also available. Fo details, efe to JTEKT sepaate catalog "Pecision all and Rolle eaings fo Machine Tools" (CAT. NO. 25E). Table 1 Suppot beaing toleance (1) Inne ing Unit : μm Nominal boe diamete (2) Oute ing Unit : μm C 65 C 66 d Single plane mean boe diamete deviation 3 dmp Single boe diamete deviation 3 ds class 5Z class 4Z class 5Z class 4Z Single inne ing width deviation 3 s classes 5Z, 4Z Inne ing width vaiation class 5Z V s class 4Z Radial unout of assembled beaing inne ing class 5Z K ia class 4Z Pependiculaity of inne ing face with espect to the boe S d class 5Z class 4Z Assembled beaing inne ing face unout with aceway S ia ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max Nominal outside diamete D Single plane mean outside diamete deviation 3 Dmp Single outside diamete deviation 3 Ds class 5Z class 4Z class 5Z class 4Z Single oute ing width deviation 3 Cs classes 5Z, 4Z Oute ing width vaiation class 5Z V Cs class 4Z Radial unout of assembled beaing oute ing class 5Z K ea class 4Z Pependiculaity of oute ing outside suface with espect to the face S D class 5Z class 4Z class 5Z class 4Z Assembled beaing oute ing face unout with aceway S ea ove up to uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max. max. max. max Equivalent to Equivalent to 3 s toleances S ia toleances of a beaing of of a beaing of the same d the same d class 5Z class 4Z

34 Pecision ball scew suppot beaings d 17 6 mm 1 D DD D DT 1 u D u D 1 u d 1 u d u d 2 u D 2 DF DFD DFF DFT DT DTD ounday dimensions asic dynamic Max. axial loadings Limiting speeds Dimensions Standad peload (kn) Stating toque (mn m) Axial igidity (N/μm) load ating 1) Envelope (Refe.) (kn) (min 1 ) eaing No. 2) Matching types Matching types Matching types volume 1 C a Singleooow lub. 1 d 2 D 1 D Double- Tiple- Gease d D (cm 3 Two Thee Fou Two Thee Fou Two Thee Fou Oil lub. /ow) d (kg/ow) min. min. (kn) 2 beaings beaings beaings beaings beaings beaings beaings beaings beaings SAC SAC SAC SAC SAC SAC SAC SAC SAC SAC SAC SAC [Notes] 1) The basic dynamic load atings of a single-ow beaing ae shown in this column. Those of matched pai and stack beaings ae as shown below. Numbe of ows which suppot axial loading One Two Thee asic dynamic load ating Ca Ca Ca 2.16 Matching types (the aow denotes the load diection.) D DF DD DFD Numbe of ows which suppot axial loading DT DD DFD DFF DTD DT DFT Dynamic equivalent load Matching Types F a F < = 2.17 F a > 2.17 F P a = XF + YF a 2) Matched beaing numbes consist of a single-ow beaing numbe and a matching code such as D o DF which is shown as a suffix. C 67 C 68 X Y X Y Two beaings D DF One DT Two One Thee beaings DD DFD Two DTD Thee DT DFT One Fou beaings D DFF Two DT DFT Thee

35 Pecision ball scew suppot beaing units d 17 4 mm L x 2 x 3 x θ θ 1 Z 1 M 1 ud 1 ud 3 ud 2 ud 1 x 1 ud ud ud 1 Z 2 M 2 P 1 P L 3 L 1 L 2 Dimensions Applicable Dilled-hole of Tapped-hole fo Standad Stating shaft dia. Unit No. 1) eaing housing dust-cove peload toque d qty. d D D 1 L L 1 L 2 L 3 d 1 d 2 x x 1 x 2 x 3 P θ Z 1 -M 1 P 1 θ 1 Z 2 -M 2 3 ( ) Hole No.-thead ( ) Hole No.-thead (kn) (mn m) (Refe.) SU1747DF M M SU247DF M M SU2562DF M M SU2562DFD M M SU362DF M M SU362DFD M M SU3572DF M M SU3572DFD M M SU3572DFF M M SU472DF M M SU472DFD M M SU472DFF M M [Note] 1) Diagams show a unit mounted with tiple-ow matched beaing DFD. Specifications of each beaing ae shown in the fome pages. (SU1747DF SAC1747DF) [Refe.] Relationship between axial load and axial displacement Amount of axial displacement (μm) eaing No. SAC1747DF, SAC247DF SAC2562DF, SAC362DF SAC3572DF, SAC472DF SAC4575DF, SAC49DF SAC451DF, SAC51DF, SAC5512DF SAC612DF Axial load (kn) C 69 C 7

36 Full complement type cylindical olle beaings fo cane sheaves Shielded type Cane ope sheaves and unning wheels which ae opeated at low o medium speed ae geneally equipped with full complement type cylindical olle beaings because the opeation of these machines involves heavy, impact loading. These beaings ae divided into shielded and open types. The shielded type is often used with the oute ing otation. oe diamete 4 44 mm Open type oe diamete 5 44 mm Shielded type The shielded type was developed fo use with ope sheaves. It is shielded, non-sepaable and pe-lubicated with gease. eaings with locating snap ings aound the oute ing can be positioned and fit to sheaves with ease. The beaing suface is coated with phosphate fo ust pevention. Open type Open type beaings ae futhe divided into those used on the fixed side and those used on the fee side. The fome cay axial load in both diections. The elative position of the latte's inne ing and oute ing can be adjusted by moving them along the axis. Open type beaings ae sepaable because the oute ing divided into two annula pieces in a plane pependicula to its axis. Tiple-ow and fou-ow beaings ae available along with double-ow types. Toleances As specified in JIS , classes and 6 (ef. Table 7-3 on pp. A 54-A 57). Recommended fits and adial intenal cleaance Recommended fits: efe to Table 9-4 on pp. A 85, 86. Fits and cleaance of full complement type cylindical olle beaings fo use with cane sheaves with the otating oute ing load Rotating oute ing load Condition Light o fluctuating load Nomal o heavy load Heavy load on thin section housing Shaft toleance class g 6 o h 6 Housing boe toleance class M 7 N 7 P 7 eaing adial intenal cleaance CN cleaance C3 cleaance C3 cleaance Radial intenal cleaance : Refe to Table 1-8 (1) on p. A 1. As fo the nominal boe dia. up to 14mm shielded type (DC5 seies), the coesponding CN cleaance ae shown below. CN cleaance of shielded type olle beaings fo nominal diamete up to 14mm Nominal boe dia. d CN cleaance (μm) ove up to min. max C 71 C 72

37 Full complement type cylindical olle beaings fo cane sheaves shielded type d 4 15 mm C C C C 2 u D t u d u D t u d u D t u d S C 1 f u D x u d a u E Design 1 Design 2 Design 3 With locating snap ings ounday dimensions asic load atings eaing No. Locating snap ing specifications Mounting dimensions (Refe.) (kn) Design Without locating With locating d D C t C C C 1) d a D x snap ings snap ings 1 S E f C 2) min. min. min DC58N DC58NR DC59N DC59NR DC51N DC51NR DC511N DC511NR DC512N DC512NR DC513N DC513NR DC514N DC514NR DC515N DC515NR DC516N DC516NR DC517N DC517NR DC518N DC518NR DC519N DC519NR DC52N DC52NR DC522N DC522NR DC524N DC524NR DC526N DC526NR DC528N DC528NR DC53N DC53NR [Notes] 1) Dimensional toleance of C 1 is +.4/ when boe diamete is not moe than 17mm, while +.6/ when boe diamete is not moe than 17mm. 2) Dimensional toleance of C 2 is.1/.5 when boe diamete is not moe than 17mm, while.1/.7 when boe diamete is not moe than 17mm. C 73 C 74

38 Full complement type cylindical olle beaings fo cane sheaves shielded type d mm C C C C 2 u D t u d u D t u d u D t u d S C 1 f u D x u d a u E Design 1 Design 2 Design 3 With locating snap ings ounday dimensions asic load atings eaing No. Locating snap ing specifications Mounting dimensions (Refe.) (kn) Design Without locating With locating d D C t C C C 1) d a D x snap ings snap ings 1 S E f C 2) min. min. min DC532N DC532NR DC534N DC534NR DC536N DC536NR DC538N DC538NR DC54N DC54NR DC544N DC544NR DC548N DC548NR DC552N DC552NR DC556N DC556NR DC DC DC DC DC DC DC DC [Notes] 1) Dimensional toleance of C 1 is +.4/ when boe diamete is not moe than 17mm, while +.6/ when boe diamete is not moe than 17mm. 2) Dimensional toleance of C 2 is.1/.5 when boe diamete is not moe than 17mm, while.1/.7 when boe diamete is not moe than 17mm. C 75 C 76

39 Full complement type cylindical olle beaings fo cane sheaves open type d 5 2 mm P n u d S a a u D u d u D a u d a Fixed side Fee side ounday dimensions asic load atings eaing No. Lubication hole Mounting dimensions S 1) (kn) Fixed side n d a D a a d D C C P d min. Fixed side Fee side qty min. max. max DC491AVW DC491VW DC4912AVW DC4912VW DC4914AVW DC4914VW DC4916AVW DC4916VW DC4918AVW DC4918VW DC492AVW DC492VW DC4922AVW DC4922VW DC4924AVW DC4924VW DC4926AVW DC4926VW DC4928AVW DC4928VW DC483AVW DC483VW DC493AVW DC493VW DC4832AVW DC4832VW DC4932AVW DC4932VW DC4834AVW DC4834VW DC4934AVW DC4934VW DC4836AVW DC4836VW DC4936AVW DC4936VW DC4838AVW DC4838VW DC4938AVW DC4938VW DC484AVW DC484VW DC494AVW DC494VW [Note] 1) Effective movement of the beaing on the fee side in an axial diection. C 77 C 78

40 Full complement type cylindical olle beaings fo cane sheaves open type d mm P S n u d a a u D u d u D a u d a Fixed side Fee side ounday dimensions asic load atings eaing No. Lubication hole Mounting dimensions S 1) (kn) Fixed side n d a D a a d D C C P d min. Fixed side Fee side qty min. max. max DC4844AVW DC4844VW DC4944AVW DC4944VW DC4848AVW DC4848VW DC4948AVW DC4948VW DC4852AVW DC4852VW DC4952AVW DC4952VW DC4856AVW DC4856VW DC4956AVW DC4956VW DC486AVW DC486VW DC496AVW DC496VW DC4864AVW DC4864VW DC4964AVW DC4964VW DC4868AVW DC4868VW DC4968AVW DC4968VW DC4872AVW DC4872VW DC4972AVW DC4972VW DC4876AVW DC4876VW DC4976AVW DC4976VW DC498AVW DC498VW DC4984AVW DC4984VW DC4988AVW DC4988VW [Note] 1) Effective movement of the beaing on the fee side in an axial diection. C 79 C 8

41 Rolling mill oll neck beaings Fou-ow cylindical olle beaings Rolling mill oll neck fou-ow cylindical olle beaings and tapeed olle beaings ae designed to achieve the maximum load ating capacity in a limited space. Fou-ow cylindical olle beaings Suitable fo high-speed otation. Thin section designs ae also available. The inne ing aceway suface and the oll can be finished simultaneously afte the inne ing is mounted on the oll neck. This featue is useful in impoving olling mill accuacy. Fou-ow tapeed olle beaings Suitable fo low- and medium-speed otation. Available in both metic and inch seies. The intenal cleaance is peadjusted, facilitating mounting. Moe sealed type fou-ow tapeed olle beaings ae being used cuently. Cylindical boe oe diamete 1 5 mm Fou-ow tapeed olle beaings Open type oe diamete 65 5 mm Sealed type oe diamete 75 8 mm Fou-ow cylindical olle beaings Fou-ow tapeed olle beaings Toleances As specified in JIS (efe to Table 7-3 on pp. A 54-A 57.) Metic seies : as specified in AS 12. (efe to Table 7-6 on p. A 63.) Inch seies : as specified in AMA Section 19. (efe to Table 7-7 on pp. A 64, 65.) Special seies (47T, 4TR ) : Special allowances ae applied to these seies. Fo details, consult with JTEKT. Recommended fits Refe to Table 1. Metic seies : efe to Table 2. Inch seies : efe to Table 3. Intenal cleaance Refe to Table 1-8 on pp. A 1, 11. Refe to Table 1-1 on p. A 14. (JTEKT should be consulted to detemine the cleaance accoding to application conditions.) Equivalent load Dynamic equivalent adial load : P = F Static equivalent adial load : P = F Dynamic equivalent adial load : when F a e P = F + Y 2 F F a [Note] Fo axial load facto Y 2, Y 3 and Y, and the constant e, use values listed in the specification table. C 81 C 82 F when a F > e P =.67F + Y 3 F a Static equivalent adial load : P = F + Y F a

42 Nominal boe diamete d Table 1 Roll neck fou-ow cylindical olle beaing ecommended fits Unit : μm Inne ing and oll neck (shaft) Single plane mean boe diamete deviation 3 dmp Roll neck diamete deviation Nominal outside diamete D Oute ing and chock (housing) Single plane mean outside diamete deviation 3 Dmp Chock boe diamete deviation ove up to uppe lowe uppe lowe ove up to uppe lowe uppe lowe (p6) (6) (6) (6) + 31 (s6) (s6) (s6) [Note] The table above shows geneal values. JTEKT detemines ecommended fit on a case by case basis accoding to beaing mateials and opeating conditions to pevent the inne ing fom ceeping. Consult with JTEKT when efeing to this table (H7) (H7) + 18 (G7) (G7) (F7) (F7) (F7) (F7) (E7) Table 3 Roll neck inch seies fou-ow tapeed olle beaing ecommended fits Unit : μm Double inne ing and oll neck (shaft) Nominal boe diamete d (1/25.4) Single plane mean boe diamete deviation 3 dmp Roll neck diamete deviation Nominal outside diamete D (1/25.4) Oute ing and chock (housing) Single plane mean outside diamete deviation 3 Dmp Chock boe diamete deviation 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.) 23.2 (8.) 34.8 (12.) 69.6 (24.) (24.) (36.) (36.) (48.) (48.) (36.) (48.) (48.) (6.) (6.) Table 2 Roll neck metic seies fou-ow tapeed olle beaing ecommended fits Unit : μm Double inne ing and oll neck (shaft) Nominal boe diamete d Single plane mean boe diamete deviation 3 dmp Roll neck diamete deviation Nominal outside diamete D Oute ing and chock (housing) Single plane mean outside diamete deviation 3 Dmp Chock boe diamete deviation ove up to uppe lowe uppe lowe ove up to uppe lowe uppe lowe C 83 C 84

43 Fou-ow cylindical olle beaings d 1 (16) mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC FC FC Design 2-5P Design 2-6P FC FC CR FC FC FC FC FC19119W FC FC FC FC FC FC FC2215A Design 3-1 Design 3-2P Design 3-1P FC ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 85 C 86

44 Fou-ow cylindical olle beaings d (16) 19 mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC FC2317A FC FC2318A FC2412W FC Design 2-5P Design 2-6P FC FC24156A FC FC FC FC FC FC FC25156A W FC FC FC FC FC2717A FC FC [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. ud a Design 3-1 Design 3-2P Design 3-1P ud a C 87 C 88

45 Fou-ow cylindical olle beaings d mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC FC28152W FC Design 2-5P Design 2-6P FC FC2819A FC FC FC FC FC FC FC315W A FC31192W FC31225A FC FC FC3418A Design 3-1 Design 3-2P Design 3-1P A FC ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 89 C 9

46 Fou-ow cylindical olle beaings d 237 (28) mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC /1YD FC FC3322W Design 2-5P Design 2-6P FC3325W FC FC FC FC FC36192W FC FC3623CW FC3623D FC FC37268W A FC FC37234A FC FC Design 3-1 Design 3-2P Design 3-1P FC3817W A ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 91 C 92

47 Fou-ow cylindical olle beaings d (28) (32) mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max C D FC FC FC39275J FC P Design 2-5P Design 2-6P FC FC418W FC FC FC43A FC FC CR3 3-2P FC423DW FC423L-2 2-6P FC423W FC FC FC FC4423/ CR FC Design 3-1 Design 3-2P Design 3-1P FC4524CW FC4634A ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 93 C 94

48 Fou-ow cylindical olle beaings d (32) 37 mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC P A 2-6P FC442AW FC442W FC Design 2-5P Design 2-6P FC FC4638W FC4525W FC4525W SP FC SP FC4835D 3-2P FC4835L 3-2P SP FC4835N 2-6P FC FC493A FC46254W FC P FC FC FC FC P Design 3-1 Design 3-2P Design 3-1P FC P FC524W FC544A ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 95 C 96

49 Fou-ow cylindical olle beaings d 375 (42) mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC P FC FC FC P Design 2-5P Design 2-6P FC5434W FC P FC P FC544W 2-6P FC544DW 3-2P SP FC554AW FC5225W FC P CR4 3-2P FC P FC P FC613W FC FC P FC641A 2-6P FC P Design 3-1 Design 3-2P Design 3-1P FC FC ud a ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 97 C 98

50 Fou-ow cylindical olle beaings d (42) (48) mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC CR42A 3-1P FC P FC P FC5942A Design 2-5P Design 2-6P FC P FC5927W CR44 3-1P FC6245AW 2-6P FC P FC P FC P CR P FC6345A SP FC CR46C 3-1P FC624W 1-6P FC624D FC6547W 1-6P CR46 3-1P FC P CR46D 3-1P FC P ud a Design 3-1 Design 3-2P Design 3-1P ud a [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. C 99 C 1

51 Fou-ow cylindical olle beaings d (48) 5 mm C 1 ud ud uf w Design 1-1 Design 1-2 Design 1-3 Design 1-4 Design 1-6P Design 2-1P Design 2-2 Design 2-2P Design 2-3 Design 2-4 ounday dimensions asic load atings Mounting dimensions (Refe.) (kn) eaing No. Design 1) d D C F 3) 3) 1 d w C C a D a 2) a 2) b min. min. min. max. min. max. max FC P FC P CR48 3-1P CR48 3-2P FC685A 2-6P Design 2-5P Design 2-6P SP SP FC SP FC6745A-3 2-6P FC P FC P FC6951A 3-2P FC P FC P FC P FC7253C 2-6P FC7253W 3-2P Design 3-1 Design 3-1P [Notes] 1) Design numbes indicate the following meanings with P... pin type cages without P... machined cages One inne ing Two inne ings Extended inne ing Oute ing with ib Oute ing with loose ib 1-1, 1-2, 1-3, P 2-1P, 2-2, 2-2P, 2-3, P, 2-6P 3-1, 3-1P, 3-2P 2) a indicates housing chamfe dimension coesponding to oute ing chamfe dimension. b indicates the shaft chamfe dimension coesponding to inne ing chamfe dimension 1. 3) SP indicates the specially chamfeed fom. Design 3-2P ud a ud a C 11 C 12

52 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T T T A T T T T T T231612A T T T L624549D/514/514D LM124449D/41/41D M224749D/71/71D D/2/2D D/22/22D [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 13 C 14

53 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T T T D/2/2D D/2/2D T T M231649D/61/61D T T D/2/21D D/2/21D T A T342418A T / [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 15 C 16

54 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) D/2/21D D/2/2D EE917D/112/113XD T T T T362818A T T M238849D/81/81D T TR D/6782/6782D M24648D/611/611D T T EE13282D/125/126D D/125/127D T [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 17 C 18

55 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) D/2/2D D/2/21D T412821A T LM742749D/714/714D T T T T T T443326A T T T T443129A M244249D/21/21D TR225A LM245149D/11/11D T D/2/2D T [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 19 C 11

56 Fou-ow tapeed olle beaings d 24 (26) mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) 2) Design 1) d D T W 1 d C C a D a S a 2) 3) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T /DP T T483631A SP T T484127A T483523A EE12797D/135/136D T LM247748D/71/71D EE12696D/15/151D EE22975D/1575/1576D T T T T513627A T T513627C M249748D/71/71D T523627A T T T [Notes] 1) While SP indicates metic seies the specially beaings chamfeed have minus fom. toleances fo boe and OD, inch seies have plus toleances. Refe 2) 3) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. 2) While to page metic C 82 seies fo details beaings of applicable have minus toleances standads. fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. C 111 C 112

57 Fou-ow tapeed olle beaings d (26) mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) HM252348D/31/31D T T D/2/2D T M252349D/31/31D T T T563927A T T LM654644D/61/61D T T563829A X T56429A T P T LM654648D/61/61D M255449D/41/41D [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 113 C 114

58 Fou-ow tapeed olle beaings d (32) mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) 2) Design 1) d D T W 1 d C C a D a S a 2) 3) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) EE33116D/166/167D T T T T T T64727A SP T P T64729C 1-P T HM256849D/81/81D T614428C M757448D/41/41D M257149D/11/11D T614838A 1-P EE724121D/195/196D M257248D/21/21D T624331A T6246A LM258649D/61/61D T644533J 1-P T644533L T [Notes] 1) While SP indicates metic seies the specially beaings chamfeed have minus fom. toleances fo boe and OD, inch seies have plus toleances. Refe 2) While to page metic C 82 seies fo details beaings of applicable have minus toleances standads. fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) 3) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 115 C 116

59 Fou-ow tapeed olle beaings d (32) (355.6) mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T T P T T P T P T T T T665131A T674634/DP HM26149D/1/1D 1-P A 1-P T T T T694625/DP HM262749D/1/1D M262449D/1/1D T T LM763449D/41/41D [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 117 C 118

60 Fou-ow tapeed olle beaings d (355.6) (38) mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) M263349D/31/31D 1-P T724838A T724838C T T T P T T T P T745238D T745238J 1-P HM26549D/1/1D 1-P T P T P T T T T P T765629A T765633A 1-P T T P T [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 119 C 12

61 Fou-ow tapeed olle beaings d (38) 43 mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T P HM266449D/41/41D 1-P T T785135A T T T85638A 1-P T P T8593A 1-P T T P T M267949D/91/91XD M667947D/911/911D T835943A 1-P T T T T865734C T [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 121 C 122

62 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) Design d D T W 1 d C C a D a S a 2) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T P LM769349D/31/31D EE93117D/25/251XD 1-P EE736173D/238/239D 1-P T P T P T P T P P A T M27749D/71/71D 1-P M27449D/1/1D 1-P T T91628A 1-P EE737179D/26/261D 1-P T T T P T T P T95637A [Notes] 1) While metic seies beaings have minus toleances fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 123 C 124

63 Fou-ow tapeed olle beaings d mm T Fo oil mist lubication S a 1 W ud ud uda ud a Design 1 Design 1-P Design 2 Design 2-P ounday dimensions asic load atings Mounting dimensions (kn) eaing No. 1) 2) Design 1) d D T W 1 d C C a D a S a 2) 3) b min. min. max. max. min. min. max. max. Constant Axial load factos e Y 2 Y 3 Y (Refe.) T P M272749D/71/71D 1-P P T P T96742C T P TR19A 1-P TR19 1-P TR19D T T976542A 2-P M272647D/61/61D 1-P T EE64193D/26/261D 1-P EE243193D/25/251D LM772749D/71/71D T986339A T TR5M 2-P TR5 1-P SP /5 1-P TR5T TR5J 1-P TR5Q 1-P [Notes] 1) While SP indicates metic seies the specially beaings chamfeed have minus fom. toleances fo boe and OD, inch seies have plus toleances. Refe 2) While to page metic C 82 seies fo details beaings of applicable have minus toleances standads. fo boe and OD, inch seies have plus toleances. Refe to page C 82 fo details of applicable toleance standads. 2) 3) b indicates the shaft chamfe dimension coesponding to cone chamfe dimension 1. C 125 C 126

64 Sealed type fou-ow tapeed olle beaings d mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C 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 indicates the specially chamfeed fom. C 127 C 128

65 Sealed type fou-ow tapeed olle beaings d 24 (28) mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C 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 SP TS563829A [Note] 1) SP indicates the specially chamfeed fom. C 129 C 13

66 Sealed type fou-ow tapeed olle beaings d (28) mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C e Y 2 Y 3 (Refe.) TS TS56434A TS TS TS TS TS573824A TS TS58442C TS TS TS TS TS TS614428C TS TS P TS614127D TS TS624335A SP TS TS TS [Note] 1) SP indicates the specially chamfeed fom. C 131 C 132

67 Sealed type fou-ow tapeed olle beaings d mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C e Y 2 Y 3 (Refe.) TS TS P TS P TS TS674634A TS TS P TS694625D SP TS TS SP DS74842C 1-P TS TS P TS724838A TS75526A SP TS P TS795536A TS815529D-2 2-P TS815533A 2-P TS815536A TS [Note] 1) SP indicates the specially chamfeed fom. C 133 C 134

68 Sealed type fou-ow tapeed olle beaings d mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C 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 TS91628D 2-P TS P TS P SP TS P TS P TRS19 1-P TRS19C TRS19D 2-P TS P TS TS TS976542A 1-P [Note] 1) SP indicates the specially chamfeed fom. C 135 C 136

69 Sealed type fou-ow tapeed olle beaings d mm 1 T W ud ud Design 1 Design 1-P Design 2 Design 2-P ounday dimensions d D T W 1) 1) 1 mm 1/25.4 mm 1/25.4 mm 1/25.4 mm 1/25.4 min. min. asic load atings (kn) eaing No. Design Constant Axial load factos C C 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 TRS8 1-P [Note] 1) SP indicates the specially chamfeed fom. C 137 C 138

70 eaings fo ailway olling stock axle jounals Cylindical olle beaings eaings used to suppot olling stock axle jounals ae equied to be vey stong and, at the same time, to be small because of limited space. Double-ow beaings that ae lage in width than geneal beaings ae popula in that they ae compact and have high load atings. Cylindical olle beaings Featue good high-speed pefomance, and can be maintained and inspected easily because of thei sepaable stuctue. Most commonly used beaing. Those with a ib next to the inne ing ae able to suppot not only adial load but also a cetain degee of axial load, so that a ball beaing is not equied to accommodate the axial load. Sealed type cylindical olle beaing units and tapeed olle beaing units Maintenance-fee : pe-lubicated with gease and povided with oil seals. Can be used with a simplified axle box, o with an adapte instead. The inch seies axle beaing units (AU) ae as specified in the "association of ameican ail-oads". oe diamete mm Sealed type cylindical olle beaing units oe diamete mm Sealed type tapeed olle beaing units(au) oe diamete mm C 139 C 14

71 Toleances Cylindical olle and axial load suppot ball beaings : as specified in JIS , class (Table 7-3 on pp. A 54 A 57). The toleances fo cylindical olle beaing width and oveall width ae as shown in Table 1. Metic seies AU beaings: efe to Table 2. Inch seies AU beaings : efe to Table 3. Recommended fits Refe to Table 4. Radial intenal cleaance Cylindical olle beaings : class C 3 UIC* standad cylindical olle beaings : class C 4 (efe to Table 1-8 on p. A 1.) Axial load suppot ball beaings : class C 5 Howeve, the cleaance class should be adjusted accoding to the axle box stuctue. Consult with JTEKT fo futhe infomation. AU beaings : class C 3 (efe to Table 1-1 on p. A 14) *Denotes that the beaings ae compatible with axle jounals and axle boxes standadized by the UIC. Table 1 Cylindical olle beaings fo axle jounals : toleances fo inne ing width, oute ing width and oveall width C 1 Nominal boe diamete d Nominal boe diamete d Table 2 Metic seies AU beaing toleances Unit : μm Single plane mean boe diamete deviation 3 dmp Single plane mean outside diamete deviation 3 Dmp Single oute ing width deviation 3 Cs Actual oveall width of inne ings deviation 3 1s uppe lowe uppe lowe uppe lowe uppe lowe Table 3 Inch seies AU beaing toleances Unit : μm Single plane mean boe diamete deviation 3 dmp Single plane mean outside diamete deviation 3 Dmp Single oute ing width deviation 3 Cs Actual oveall width of inne ings deviation 3 1s uppe lowe uppe lowe uppe lowe uppe lowe 11.6to u D C 1 u d (1) Toleances fo inne ing width and inne ing oveall width Unit : μm eaing type Inne ing one-piece type, Inne ing with a ib and loose ib Two inne ings and space Design 1-1, , Nominal boe diamete 3 s o 3 1s d ove up to uppe lowe (2) Toleances fo oute ing width and oute ing oveall width Unit : μm C 1 C 1 eaing type Cylindical olle beaing Tapeed olle beaing Axial load suppot deep goove ball beaing Table 4 Axle jounal beaing ecommended fits Axle jounal diamete Axle jounal ove up to toleance class 5 1 (m 6), n n p 6 All diametes k 5 Axle box boe toleance class H 7 Cleaance fit (cleaance of appox..2 to.6 mm) eaing type Design Nominal boe diamete d 3 Cs o 3 C1s ove up to uppe lowe C 1 Oute ing one-piece type Oute ing and two loose ibs C Two oute ings 2-1 1) Two oute ings and space , [Note] 1) (2-1) means that space shown in Design 2-1 is emoved C 141 C 142

72 Cylindical olle beaings fo ailway olling stock axle jounals d 85 (12) mm d (12) 133 mm C C C C C u D 1 u du F w u D 1 u d u F w u D 1 u d u F w 1 u D u d u F w 1 u D u du F w Design 1 Design 2 Design 3 Design 4 Design 5 ounday dimensions 1) d D C F 1 w min. min. asic load atings (kn) C C eaing No. 2) Design 3) (Refe.) ounday dimensions 1) d D C F 1 w min. min. asic load atings (kn) C C eaing No. 2) Design 3) (Refe.) (7) U2217SC CR9D (1) UJ (7) CR95A UJ (1) UJ (1) UJ (7) DC1913/ (7) CR (1) DC (7) JC (7) JC (7) CR (7) JC1A (7) DC2314/ (7) JC2A (7) CR12A UJ (2CR2624A) (1) UJ13A (2CR2624) (26NJ/NJP258) (1) JC (7) CR13A NJ/NUJ2686 (2) (3) JC21 (1) (15) JC (15) JC (15) JC [Notes] 1) Values in ( ) indicate axial chamfe dimension. 2) eaings indicated in ( ) ae in accodance with UIC standads. 3) (1) means that the inne ing (ib side) shown in Design 1 has a special fom. (2) means that loose ib shown in Design 2 is eplaced with thust colla (7) CR (7) UJ (1) JC (1) JC (3) JC27X (1) (24NJ/NJP248) (1) JC (7) JC [Notes] 1) Values in ( ) indicate axial chamfe dimension. 2) eaings indicated in ( ) ae in accodance with UIC standads. 3) (1) means that the inne ing (ib side) shown in Design 1 has a special fom. (2) means that loose ib shown in Design 2 is eplaced with thust colla. C 143 C 144

73 Sealed type cylindical olle beaings fo ailway olling stock axle jounals d mm S 3 C R E Q S R Q 3 E C S R Q 3 E C S R Q 3 E C S R Q 3 E C S R Q 3 E C u M K u d u D u d 3 F G H u d u D u d 3 F G H u M K u d u D u d 3 F G H u M K u d u D u d 3 F G H u P u M u d u D u d 3 LK F G H u M K u d u D u d 3 F G H Design 1 Design 2 Design 3 Design 4 Design 5 Design 6 Shaft ounday dimensions asic load atings dia. Unit No. Design eaing No. (kn) d d D C 3 d 3 E F G H K L M P Q R S C C g. (Refe.) Unit S R Q 3 E C 95 J M RDC1914/ J RDC215/ J M S-JC u Pu M u d u D u d 3 L K F G H 12 J M RDC2215/ J138D M JC Design 7 J M JC J M JC S 3 C R E J M RDC2416/192A u M K u d u D u d 3 F G H Design 8 C 145 C 146

74 Sealed type tapeed olle beaings fo ailway olling stock axle jounals (AU beaing) K d mm mm L M N S R Q J F u d C u D E 1 G u d1 H Q The shape of the backing ing used fo J124P, J125P and J126P. S R Q C u d F u D G 1 J1486 u d 1 H S R C u d u D F G 1 J145 Q u d1 H Dynamic equivalent load (when F a /F = < e) P=F + Y 2 F a (when F a /F > e) P=.67F + Y 3 F a Static equivalent load P =F + Y F a Class Axle size Unit No. Dimensions atings stant factos asic load Con- Axial load ounday dimensions Dimensions of adapte (Refe.) Adapte olt No. size eaing No. (kn) d 1) D 1 C d 1 E F G H Q R S J K L M N p C C e Y 2 Y 3 Y g. Axle 1) Unit Adapte 4 1 / 4 8 J J /4-1 UNC C 5 9 J J /8-9 UNC D 5 1 / 2 1 J J /8-9 UNC J J UNC E 6 11 F 6 1 / 2 12 J124P J J J / 8-7 UNC J125P G 7 12 J126P J J76 2) UNC 1 1 / 8-7 UNC 1 1 / 4-7 UNC 61.9 HM12848/ HM12817XD 76.2 HM124646/ HM124618XD 88.9 HM127446/ HM127415XD 98.4 HM129848/ HM129814XD 98.4 HM129848/ HM129814XD 18. HM133444/ HM133416XD 18. HM133444/ HM133416XD HM136948/ HM136916XD J J M22 75 JT J M22 75 JT J J M22 75 JT J M22 75 JT J J6332) M22 89 JT [Notes] 1) Uppe figues : max. value ; lowe : min.value 2) J76 and J633 indicate the specifications of wide adaptes. Othes indicate naow adaptes (shown in figues above). C 147 C 148

75 Linea ball beaings Linea ball beaings have an oute cylinde and a cage with thee o moe elliptic aceways inside. alls ae aligned on these aceways. all complement boe diamete SDM seies SDMF, SDMK seies SDE seies Standad type Cleaance adjustable type Open type Suitable fo a wide ange of applications and widely used in pactice. The uppe-class type is used fo geneal puposes. The pecision-class type is used when the beaing is equied to be highly accuate. The oute cylinde and side plate ae slit axially so that the cleaance between the beaing and shaft can be adjusted. Togethe with the use of a boeadjustable housing, a no-cleaance state o lightpeloaded state can be ealized without fitting. The oute cylinde and side plate each have a slit which is equivalent in size to a eciculating ball ow aceway, so that the beaing does not intefee with a shaft stut duing opeation. This type is suitable fo use with vey long shafts. The boe diamete is adjustable. Flanged type eaing numbeing system SDM 35 UU AJ Seies code all complement boe diamete numbe Seal code Shape code Mateial code Toleance code Can be fit quickly, and helps make equipment smalle and lighte in weight. Helps educe cost. Sealed type One o both side(s) is/ae sealed with special synthetic ubbe so that foeign mateial cannot ente the beaing while the gease is kept fom leaking. This sealing can be povided on all beaings of the standad, cleaance adjustable, open, and flanged types. all complement boe diamete numbe Mateial code Seies code Metic seies Seal code Inch seies Shape code Oute cylinde and balls Cage Toleance code SDM : metic seies SDMF : metic seies (flanged type) SDMK : metic seies (flanged type) SDE : metic seies (popula ones in euope) SD : inch seies 35 : ball complement boe diamete 35 mm 4 : ball complement boe diamete 4/16 = 1/4 inch UU : both sides sealed U : single side sealed Not specified : not sealed Not specified : standad type AJ : cleaance adjustable type OP : open type Not specified : high cabon chome beaing steel Not specified : cold olled steel sheet MG : synthetic esin Not specified : uppe-class P : pecision-class C 149 C 15

76 Linea ball beaing sevice life Linea ball beaing sevice life efes to the distance that the beaing tavels until the oute cylinde, balls o shaft become damaged because of olling contact fatigue fom epeated stess. The basic dynamic load ating efes to the magnitude of a constant load which makes a beaing's sevice life end afte it tavels a distance of 5 km. The linea ball beaing sevice life and the basic dynamic load ating bea the elation shown below : 3 C L = 5 ( P ) whee : L : sevice life km P : adial load on the beaing C : beaing basic dynamic load ating (efe to the specification table.) Shaft suface hadness is closely elated to unning pefomance. In geneal, it is best fo the hadness to be 6 thu 64 HRC. If the hadness is 6 HRC o lowe, the basic dynamic load ating (C) should be coected by multiplying it by the appopiate hadness coefficient selected fom Table 1. Table 1 Shaft hadness HRC N N Hadness coefficients Hadness coefficient f H all ow aangement and load ating The basic load atings given in the specification table ae those measued when a load is applied diectly above a ball ow (Q 1 ). When the load is applied between two ball ows, the load atings become lage (Q 2 ). Table 2 lists the atios of Q 2 atings to Q 1 atings. Table 2 Numbe of ball ows all ow aangement and the compaison of load atings When a load is applied diectly above a ow (Q 1 ) When a load is applied between two ows (Q 2 ) 3 [Note] When thee ae only thee ows, Q 2 / Q 1 = 1 Ratios of Q 2 to Q Recommended fits fo linea ball beaings Table 3 lists the ecommended fits fo linea ball beaings. When a beaing is mounted with a housing, the nomal cleaance fit should be selected. When the application is highly pecise o special, the tansition fit should be selected. Linea ball beaing cleaance Linea ball beaings povide linea motion smoothly with little wea when the cleaance is.3 to.12 mm. Howeve, when cleaance incease due to wea is consideed citical, e.g. when the beaing is povided to pess die sets, pecision machine tools o pecision testes; when the beaing becomes unable to slide because of moment; o when smooth beaing opeation is needed with no cleaance povided, the cleaance is adjusted to zeo o negative. In such a case, shafts geneally need to be mounted by "selective fitting." They should be handled caefully so as not to be peloaded excessively. As Fig. 1 shows, the cleaance of beaings with numbes SDM 6 thu SDM 1 can be easily set to Fo the cleaance adjustable and open type beaings, it is best fo the shaft diamete to be smalle than the ball complement boe diamete lowe deviation, and fo the housing boe diamete to be lage than the beaing outside diamete uppe deviation. Table 3 Linea ball beaing ecommended fits Shaft toleance class Housing boe toleance class eaing Toleance Nomal cleaance Close cleaance Cleaance fit Tansition fit Uppe-class f 6, g 6 h 6 H 7 JS 7 (J 7) SDM, SD Pecision-class f 5, g 5 h 5 H 6 JS 6 (J 6) SDE h 6 js 6 (j 6) H 7 JS 7 (J 7) zeo o negative, by adjusting one of the thee ball ows with a bolt. Consult with JTEKT on the gauging of linea ball beaings and shafts which should be mounted by "selective fitting," as well as on the whole design of shafts. Fig. 1 Cleaance adjustment eaing numbe SDM 6, 8 1, 12, 13, , 3 35, 38, 4, , 12 Table 4 SDM seies linea ball beaing toleances Unit : μm all complement boe diamete (F w ) deviation Outside diamete (D) deviation Oveall length (L) deviation deviation Eccenticity uppe lowe uppe lowe uppe lowe uppe lowe uppe lowe max Pecisionclass Uppeclass Pecisionclass Uppeclass eaing numbe SDE 5, 8 1, , 3 4, Table 5 SDE seies linea ball beaing toleances Unit : μm all complement boe diamete (F w ) deviation Outside diamete (D) deviation Oveall length (L) deviation deviation Eccenticity uppe lowe uppe lowe uppe lowe uppe lowe max C 151 C 152

77 Linea ball beaings d 5 (2) mm W L W h θ h 1 u D u D 1 u d F W F W F W Cleaance SDM, SDE Standad type adjustable type Open type SDM...MD (...AJ) (...OP) Shaft dia. Dimensions eaing No. 1) No. of ball ows asic load atings (Refe.) (N) d F w D L W D 1 h h 1 θ Standad type Cleaance adjustable type Open type Standad type Cleaanece adjustable type Open type C C (g) Standad type SDE SDM6 SDM6AJ SDM6MG SDM6AJMG SDM8S SDM8SAJ SDM8SMG SDM8SAJMG SDM8 SDM8AJ SDM8MG SDM8AJMG SDE8 SDE8AJ SDE8MG SDE8AJMG SDM1 SDM1AJ SDM1OP SDM1MG SDM8AJMG SDE1 SDE1AJ SDE1OP SDE1MG SDE1AJMG SDM12 SDM12AJ SDM12OP SDM12MG SDM12AJMG SDE12 SDE12AJ SDE12OP SDE12MG SDM12AJMG SDM13 SDM13AJ SDM13OP SDM13MG SDM13AJMG SDE16 SDE16AJ SDE16OP SDE16MG SDE16AJMG SDM16 SDM16AJ SDM16OP SDM16MG SDM16AJMG SDM2 SDM2AJ SDM2OP SDM2MG SDM2AJMG [Note] 1) JTEKT also manufactues sealed types, which ae identified by U (one side sealed) o UU (both sides sealed) afte ball complement boe diamete numbe. C 153 C 154

78 Linea ball beaings d (2) 8 mm W L W h θ h 1 u D u D 1 u d F W F W F W Cleaance SDM, SDE Standad type adjustable type Open type SDM...MD (...AJ) (...OP) Shaft dia. Dimensions eaing No. 1) No. of ball ows asic load atings (Refe.) (N) d F w D L W D 1 h h 1 θ Standad type Cleaance adjustable type (g) Standad type SDE2 SDE2AJ SDE2OP SDE2MG SDE2AJMG SDE25 SDE25AJ SDE25OP SDE25MG SDE25AJMG SDM25 SDM25AJ SDM25OP SDM25MG SDM25AJMG SDM3 SDM3AJ SDM3OP SDM3MG SDM3AJMG SDE3 SDE3AJ SDE3OP SDE3MG SDE3AJMG SDM35 SDM35AJ SDM35OP SDM35MG SDM35AJMG SDM38 SDM38AJ SDM38OP SDM4 SDM4AJ SDM4OP SDM4MG SDM4AJMG SDE4 SDE4AJ SDE4OP SDE4MG SDE4AJMG SDE5 SDE5AJ SDE5OP SDM5 SDM5AJ SDM5OP SDM6 SDM6AJ SDM6OP SDE6 SDE6AJ SDE6OP SDM8 SDM8AJ SDM8OP SDE8 SDE8AJ SDE8OP Open type Standad type Cleaanece adjustable type Open type C C [Note] 1) JTEKT also manufactues sealed types, which ae identified by U (one side sealed) o UU (both sides sealed) afte ball complement boe diamete numbe. C 155 C 156

79 Linea ball beaings d 1 12 mm W L W h θ h 1 u D u D 1 u d F W F W F W Cleaance SDM, SDE Standad type adjustable type Open type SDM...MD (...AJ) (...OP) Shaft dia. Dimensions eaing No. 1) No. of ball ows asic load atings (Refe.) (N) d F w D L W D 1 h h 1 θ Standad type Cleaance adjustable type (g) Standad type SDM1 SDM1AJ SDM1OP SDM12 SDM12AJ SDM12OP Open type Standad type Cleaanece adjustable type Open type C C [Note] 1) JTEKT also manufactues sealed types, which ae identified by U (one side sealed) o UU (both sides sealed) afte ball complement boe diamete numbe. C 157 C 158

80 Linea ball beaings flanged type d 6 5 mm L t Mounting bolt F W F W u D u d u P u D f K SDMF...MG SDMF, SDMK Round-flanged Squae-flanged (Synthetic esin) Round-flanged Squae-flanged SDMK...MG Shaft dia. Dimensions eaing No. asic load atings olt No. of (N) size Round-flanged Squae-flanged ball ows d F w D L D f K t P C type type C (Refe.) (g) Round-flanged type M3 SDMF6 SDMK M3 SDMF6MG SDMK6MG M3 SDMF8 SDMK M3 SDMF8MG SDMK8MG M4 SDMF1 SDMK M4 SDMF1MG SDMK1MG M4 SDMF12 SDMK M4 SDMF12MG SDMK12MG M4 SDMF13 SDMK M4 SDMF13MG SDMK13MG M4 SDMF16 SDMK M4 SDMF16MG SDMK16MG M5 SDMF2 SDMK M5 SDMF2MG SDMK2MG M5 SDMF25 SDMK M5 SDMF25MG SDMK25MG M6 SDMF3 SDMK M6 SDMF3MG SDMK3MG M6 SDMF35 SDMK M6 SDMF35MG SDMK35MG M8 SDMF4 SDMK M8 SDMF4MG SDMK4MG M8 SDMF5 SDMK C 159 C 16

81 Linea ball beaings flanged type d 6 8 mm L t Mounting bolt F W F W u D u d u P u D f K SDMF...MG SDMF, SDMK Round-flanged Squae-flanged (Synthetic esin) Round-flanged Squae-flanged SDMK...MG Shaft dia. Dimensions eaing No. asic load atings olt No. of (N) size Round-flanged Squae-flanged ball ows d F w D L D f K t P C type type C (Refe.) (g) Round-flanged type M1 SDMF6 SDMK M1 SDMF8 SDMK C 161 C 162

82 Locknuts, lockwashes & lock plates Locknuts eaings ae often fit to a shaft with an adapte sleeve, locknut, lockwashe o lock plate. These accessoies make it easy to attach and emove beaings. They ae standadized in JIS. Locknuts ae standadized such that they can be used with eithe adapte sleeves, withdawal sleeves o shafts. Lockwashes and lock plates ae used as locks on locknuts. Lockwashes ae used with beaings of boe diamete numbe 4 o lowe. Lock plates ae used with those of boe diamete 44 o highe. AN (ANL) 2 1 HN (HNL) Lockwashes and lock plates AW (AWL) 4(X) AL (ALL) 44 1 C 163 C 164