SINCE 1972 S Y I. Needle Bearings NEEDLE ROLLER BEARINGS. Universal product. opyright 2005

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2 SINCE 1972 S Y I Needle Bearings Universal product C NEELE ROLLER BEARINGS opyright The contents of this catalogue are not the copyright of the publisher and might not be reproduced unless permission is granted. Even care has been taken to ensure the accuracy of the information contained in this catalogue, and no liability can be accepted for any errors or omissions. Catalogue Printed in Spain and designed by Gaes S.A.

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4 NEELE ROLLER BEARINGS TECHNICAL INFORMATION Pages For Refer ~31 1. Bearing materials 2. Bearing tolerances ~11 3. Bearing fits ~ 4. Bearing internal clearance 1 5. Lubrication 1~21 6. Load rating and life ~2 7. Bearing handling 29~31

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8 TECHNICAL INFORMATION 1. Bearing materials 1.1 Raceway and rolling element materials High/mid carbon alloy steel In general, steel varieties which can be hardened not just on the surface but also deep hardened by the socalled "through hardening method" are used for the raceways and rolling elements of bearings. Foremost among these is high carbon chromium bearing steel, which is widely used Midcarbon chromium steel Midcarbon chromium steel incorporating silicone and manganese, which gives it hardening properties comparable to high carbon chromium steel. 1.2 Cage materials Bearing cage materials must have the strength to with stand rotational vibrations and shock loads. These materials must also have a low friction coefficient, be light weight, and be able to with stand bearing operation temperatures Pressed cages For small and medium sized bearings, pressed cages of cold or hot rolled steel with a low carbon content of approx..1% are used. However, depending on the application, austenitic stainless steel is also used Plastic cages Injection molded plastic cages are now widely used: most are made from fiber glass reinforced heat resistant polyamide resin. Plastic cages are light weight, corrosion resistant and have excellent dampening and sliding properties. Heat resistant polyamide resins now enable the production of cages that perform well in applications ranging between 4 C C. However, they are not recoended for use at temperatures exceeding C. 2. Bearing tolerances 2.1 Standard of tolerances Ball bearing"tolerances" or dimensional accuracy and running accuracy, are regulated by ISO and JIS standards (rolling bearing tolerances). For dimensional accuracy, these standards prescribe the tolerances necessary when installing bearings on shafts or in housings. Running accuracy is defined as the allowable limits for bearing runout during operation. Table 2.1 Bearings types and applicable tolerance Bearing type Applicable standard Applicable tolerance class Applicable table Needle roller bearing class change class 6 class 5 class 4 Table 3.2 Complex bearing Needle roller bearing with doubledirection thrustf roller bearing Thrust roller bearings Radial bearing Thrust bearing Radial bearing Thrust bearing JIS B ISO 492 ( standard) class class class class 6 class 6 class 6 class 5 class 5 class 5 class 5 class 5 class 4 class 4 class 4 class 4 Table 3.2 Table 3.3 Table 3.2 Table 3.3 Table 3.3 Roller follower/cam follower class Table 3.2 Note: JIS B and ISO 492 have the same specification level.

9 TECHNICAL INFORMATION Table 2.2 Tolerance for radial bearings Table Inner rings Nominal bore diameter over d 2 incl Single plane mean bore diameter deviation Single radial plane bore diameter variation Mean single plane bore diameter variation Inner ring radial runout dmp Vdp Vdmp Kia class class class class class class class class class class class class class 6 class 5 class high low high low high low high low max. max. max class Note: 1 The dimensional difference ds of the bore diameter to be applied for class 4 is the same as the tolerance of dimensional difference dmp of the average bore diameter 2 Nominal bore diameter of bearings of 2.5 is included in this dimensional division. (Unit: m) Nominal bore diameter over Note: d 2 3 incl class Face runout with bore Sd class 6 max class Inner ring axial runout (with side) class To be applied for deep groove ball bearing. Sia 3 class 6 max class Inner ring width deviation class,6 high low Bs class 5,4 high low class Inner ring width variation VBs class class 6 5 max. Symbols: dmp: deviation of the mean bore diameter from the nominal ( dmp = dmp d). Vdp: bore diameter variation; difference between the largest and smallest single bore diameters in one plane. Vdmp: mean bore diameter variation; difference between the largest and smallest mean bore diameters of one ring or washer. Kia: radial runout of assembled bearing inner ring and assembled bearing outer ring, respectively. Sd: side face runout with reference to bore (of inner ring). Sia: side face runout of assembled bearing inner ring and assembled bearing outer ring, respectively. Bs: deviation of single inner ring width or single outer ring width from the nominal ( Bs = Bs Betc.) Vbs: ring width variation; difference between the largest and smallest single widths of inner ring and of outer ring, respectively class

10 TECHNICAL INFORMATION Table Outer rings Nominal outside diameter Single plane mean outside diameter deviation Single radial plane outside diameter variation Mean single plane outside diameter variation Outer ring radial runout over incl mp Vp Vmp Kea class class class class class class class class class class class class class 6 class 5 class high low high low high low high low max. max. max class Note: 4 The dimensional difference s of the outer diameter to be applied for class 4 is the same as the tolerance of dimensional difference mp of the average outer diameter. 5 Nominal outer diameter of bearings of 6 is included in this dimensional division. (Unit: m) Nominal outside diameter Outside surface inclination Outside ring axial runout Outer ring width deviation Outer ring width variation over incl class 5 9 Sd max. class Sia 6 class 5 max class Cs all type Identical to Bs of inner ring of same bearing VCs class,6 class 5 max. 5 Identical to 5 Bs and Vbs 5 of inner 6 ring of same class bearing Note: 6 To be applied for deep groove ball bearings. Symbols: mp: deviation of the mean outside diameter from the nominal ( mp=mp ). Vp: outside diameter variation; difference between the largest and smallest single outside diameters in one plane. Vdmp: mean bore diameter variation; difference between the largest and smallest mean bore diameters of one ring or washer. Kea: radial runout of assembled bearing inner ring and assembled bearing outer ring, respectively. Sd: side face runout with reference to bore (of inner ring). Sia: side face runout of assembled bearing inner ring and assembled bearing outer ring, respectively. Cs: deviation of single inner ring width or single outer ring width from the nominal ( Bs = Bs Betc.) Vcs: ring width variation; difference between the largest and smallest single widths of inner ring and of outer ring, respectively. 1

11 TECHNICAL INFORMATION Table 2.3 Tolerance of thrust roller bearings Table Inner rings (Unit: m) Nominal outer diameter Single plane mean bore diameter deviation Single radial plane bore diameter variation Thrust bearing shaft washer raceway (or center washer raceway) thickness variation d over incl. 1 dmp Vdp Si class,6,5 class 4 high low high low 7 class,6,5 6 max. class 4 5 class 1 class 6 5 max. class 5 3 class Table Outer rings (Unit: m) Nominal outside diameter over incl high Single plane mean outside diameter deviation class,6,5 low Single radial plane outside diameter variation mp Vp Se class 4 high low class,6, max. class class Thrust bearing housing washer raceway thickness variation class 6 max. class 5 According to the tolerance Si d d2 of against " " or " " of the same bearings Symbols: dmp: deviation of the mean bore diameter from the nominal ( dmp = dmp d). Vdp: bore diameter variation; difference between the largest and smallest single bore diameters in one plane. Si: thickness variation, measured from middle of raceway to back (seating) face of shaft washer and of housing washer, respectively (axial runout). mp: deviation of the mean outside diameter from the nominal ( mp=mp ). Vp: outside diameter variation; difference between the largest and smallest single outside diameters in one plane. Se: thickness variation, measured from middle of raceway to back (seating) face of shaft washer and of housing washer, respectively (axial runout). class 4 11

12 TECHNICAL INFORMATION 3. Bearing fits 3.1 Interference For rolling bearings, inner and outer rings are fixed on the shaft or in the housing so that relative movement does not occur between fitted surfaces during operation or under load. This relative movement (referred to as "creep") between the fitted surfaces of the bearing and the shaft or housing can occur in a radial direction, an axial direction, or in the direction of rotation. To help prevent this creeping movement, bearing rings and the shaft or housing are installed with one of three interference fits, a "tight fit" (also called shrink fit), "transition fit, " or "loose fit" (also called clearance fit), and the degree of interference between their fitted surfaces varies. The most effective way to fix the fitted surfaces between a bearing's raceway and shaft or housing is to apply a "tight fit." The advantage of this tight fit for thin walled bearings is that it provides uniform load support over the entire ring circumference without any loss of load carrying capacity. However, with a tight fit, ease of installation and disassembly is lost; and when using a nonseparable bearing as the floatingside bearing, axial displacement is not possible. For this reason, a tight fit cannot be recoended in all cases. 3.2 The necessity of a proper fit In some cases, improper fit may lead to damage and shorten bearing life, therefore it is necessary to make a careful analysis in selecting a proper fit. Some of the negative conditions caused by improper fit are listed below. Raceway cracking, early peeling and displacement of raceway Raceway cracking, early peeling and displacement of raceway Raceway and shaft or housing abrasion caused by creeping and fretting corrosion Seizing caused by loss of internal clearances Increased noise and lowered rotational accuracy due to raceway groove deformation 3.3 Fit selection Selection of a proper fit is dependent upon thorough analysis of bearing operating conditions, including consideration of: Shaft and housing material, wall thickness, finished surface accuracy, etc. Machinery operating conditions ( nature and magnitude of load, rotational speed, temperature, etc. ) "Tight fit," "transition fit," or "loose fit" For raceways under rotating loads, a tight fit is necessary. (Refer to Table 3.1) "Raceways under rotating loads" refers to raceways receiving loads rotating relative to their radial direction. For raceways under static loads, on the other hand, a loose fit is sufficient. ( Example ) Rotating inner ring load the direction of the radial load on the inner ring is rotating relatively For nonseparable bearings, such as deep groove ball bearings, it is generally recoended that either the inner ring or outer ring be given a loose fit.

13 TECHNICAL INFORMATION Table 3.1 Radial load and bearing Static load Illustration Bearing rotation Ring load Fit Inner ring: Rotating Outer ring: Stationary Rotating inner ring load Inner ring: Tight fit Imbalanced load Inner ring: Stationary Outer ring: Rotating Static outer ring load Outer ring: Loose fit Static load Inner ring: Stationary Outer ring: Rotating Static inner ring load Inner ring: Loose fit Imbalanced load Inner ring: Rotating Outer ring: Stationary Rotating outer ring load Outer ring: Tight fit Recoended Fits The system of limits and fits define the tolerances of the outside diameter of the shaft or the bore diameter of a housing ( the shaft or housing to which a metric bearing is installed). Bearing fit is governed by the selection of tolerances for the shaft outside diameter and housing bore diameter. Fig. 3.1 suarizes the interrelations between shaft outside diameter and bearing bore diameter, and between housing bore diameter and shaft outside diameter. Table 3.2 provides the recoended fits for coon radial needle roller bearings (machined ring needle roller bearings with inner ring), relative to dimensions and loading conditions. Table 3.3 is a table of the numerical value of fits Interference minimum and maximum values The following points should be considered when it is necessary to calculate the interference for an application: In calculating the minimum required amount of interference keep in mind that: 1) interference is reduced by radial loads 2) interference is reduced by differences between bearing temperature and ambient temperature 3) interference is reduced by variation of fitted surfaces Maximum interference should be no more than 1:1 of the shaft diameter or outer diameter. Required interference calculations are shown below Fitted surface variation and required interference Interference between fitted surfaces is reduced by roughness and other slight variations of these surfaces which are flattened in the fitting process. The degree of reduced interference depends upon the finish treatment of these surfaces, but in general it is necessary to assume the following interference reductions. For ground shafts: 1. ~ 2.5 For lathed shafts : 5. ~ 7. m m

14 TECHNICAL INFORMATION Maximum interference When bearing rings are installed with an interference fit, tension or compression stress may occur along their raceways. If interference is too great, this may cause damage to the rings and reduce bearing life. For these reasons, maximum interference should not exceed the previously mentioned ratio of 1:1, of the shaft or outside diameter. Class mp G6 G7 H6 H7 H Loose fit Housing J6 J7 K6 K7 M6 M7 N6 N7 P6 P7 Transition fit Types of fits Tight fit Transition fit Shaft Tight fit n5 n6 m5 m6 Class k5 k6 J5 J6 dmp h5 h6 g5 g6 p6 Table 3.2 General standards for needle roller bearing fits Table Shaft fits Fig. 4.1 Nature of load Indeterminate direction load Rotating inner ring load Static inner ring load Fit Tight fit/ Transition fit Transition fit Load condition, magnitude Light load Normal load Heavy load or shock load Inner ring axial displacement possible Inner ring axial displacement unnecessary Shaft diameter over incl ~ 5 5 ~ 1 1 ~ 2 ~ 5 5 ~ 1 1 ~ ~ 2 2 ~ ~ ~ All shaft diameters Tolerance class js6 k6 m6 k5 m5 m6 n6 p6 n6 p6 r6 g6 h6 Remarks When greater accuracy is required m5 may be substituted for m6. When greater accuracy is required m5 may be substituted for m6. When greater accuracy is required use g5. For large bearings, f6 may be used. When greater accuracy is required use h5. Centric axial load only Transition fit All loads All shaft diameters js6 General; depending on the fit, shaft and inner rings are not fixed. 1 Standards for light loads, normal loads, and heavy loads Light loads : equivalent radial load.6 Cr Normal loads:.6 Cr equivalent radial load. Cr Heavy loads :. Cr equivalent radial load Note: All values and fits listed in the above tables are for solid steel shafts.

15 TECHNICAL INFORMATION Table Housing fits (Housing of the drawn cup needle roller bearing.) Nature of load Housing Fit Load condition, magnitude Tolerance class Outer ring axial displacement 2 Remarks Rotating outer ring load or static outer ring load Solid housing or split housing Loose fit Transition or loose fit Light 1 All loads to normal load High rotation accuracy required with light to normal loads J7 H7 K6 isplacement possible isplacement possible isplacement not possible(in principle) G7 also acceptable for large type bearings as well as outer rings and housings with large temperature differences Applies primarily to roller bearings irection indeterminate load Inner ring static load or outer ring rotating load Solid housing Tight to transition fit Tight fit Light to normal load Normal to heavy load Heavy shock load Light or variable load Normal to heavy load Heavy load (thin wall housing)or heavy shock load J7 K7 M7 M7 N7 P7 isplacement possible isplacement not possible(in principle) isplacement not possible isplacement not possible isplacement not possible isplacement not possible When greater accuracy is required substitute j6 for J7 and K6 for K7. Centered axial load only Loose fit Loose fit Select a tolerance class that will provide clearance between outer ring and housing. 1 2 Standards for light loads, normal loads, and heavy loads Light loads: equivalent radial load.6 Cr Normal loads:.6 Cr equivalent radial load. Cr Heavy loads:. Cr equivalent radial load Indicates whether or not outer ring axial displacement is possible with nonseparable type bearings. Note 1 : All values and fits listed in the above tables are for cast iron or steel housings. 2 : In cases where only a centered axial load acts on the bearing, select a tolerance class that will provide clearance in the axial direction for the outer ring.

16 TECHNICAL INFORMATION Table 3.3 Numeric value table of fitting for radial bearing of class Table Fitting against shaft Nominal bore diameter of bearing d Single plane mean bore diameter deviation dmp over incl. high low g5 g6 h5 h6 j5 js5 j6 bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft 4T ~ 9L 3T ~ 11L 2T ~ L 3T ~ L 3T ~ 2L 5T ~ 23L T ~ 27L 11T ~ L T ~ L 1T ~ 4L T ~ 43L T ~ 47L 4T ~ L 3T ~ L 2T ~ L 3T ~ 2L 3T~L 5T ~ 29L T ~ 34L 11 ~ T39L T ~ 44L 1T ~ 49L T ~ 54L T ~ 6L T ~ 5L T ~ 6L T ~ L 1T ~ 9L T ~ 11L T ~ L 2T ~ L T ~ 1L 3T ~ 2L T ~ 23L 4T ~ L T ~ 27L T ~ L T ~ 9L T ~ 11L 1T ~ L T ~ L T ~ 19L 2T ~ L T ~ L 3T ~ 29L T ~ L 4T ~ 36L T ~ 4L 11T~2L T ~ 2L T ~ 3L T ~ 4L 1ST ~ 5L 21T ~ 7L 26T ~ ^9L T ~ 11L 37T ~ L T ~ L 47T ~ 1L 52T ~ 2L 1.5T ~ 2.5L 11T ~ 3L T ~ 4L.5T ~ 4.5L.5T ~ 5.5L 21.5T ~ 6.5L 27.5T ~ 7.5L 34T ~ 9L 4T ~ 1L 46.5T ~ 11.5L 52.5T ~.5L 5.5T ~.5L T ~ 2L T ~ 2L T ~ 3L 19T ~ 4L 23T ~ 5L 27T ~ 7L 33T ~ 9L 39T ~ 11L 46T ~ L 51T ~ L 5T ~ 1L 65T ~ 2L Table FiTtting against housing Nominal outside diameter of bearing d Single plane mean outside diameter deviation mp over incl. high low Note: T = tight, L = loose G7 H6 H7 J6 J7 Js7 K6 housing bearing housing bearing housing bearing housing bearing housing bearing housing bearing housing bearing 5L ~ 2L 6L ~ L 7L ~ 37L 9L ~ L 1L ~ 53L L ~ 62L L ~ 72L L ~ 79L L ~ 91L L ~ L 1L ~ 1L 2L ~ L ~ L ~ 19L ~ L ~ 27L ~ L ~ 37L ~ 43L ~ 5L ~ 59L ~ 67L ~ 76L ~ 5L ~ 23L ~ 26L ~ 3L ~ 36L ~ 43L ~ 5L ~ 5L ~ 65L ~ 76L ~ 7L ~ 97L ~ 1L 4T ~ L 5T ~ L 5T ~ L 6T ~ 21L 6T ~ 26L 6T ~ 31L 7T ~ 36L 7T ~ 43L 7T ~ 52L 7T ~ 6L 7T ~ 69L 7T ~ 7L 7T ~ L T ~ 1L 9T ~ 21L 11T ~ L T ~ 31L T ~ 37L T ~ 44L T ~ 51L T ~ 6L T ~ 71L 1T ~ 79L 2T ~ L 7.5T ~.5L 9T ~ L 1.5T ~ 19.5L.5T ~ 23.5L T ~ 2L.5T ~.5L 2T ~ 3L 2T ~ L 23T ~ 53L 26T ~ 61L 2.5T ~ 6.5L 31.5T ~ 76.5L 7T ~ 1L 9T ~ 1L 11T ~ 11L T ~ L T ~ L 1T ~ 19L 21T ~ L 21T ~ 29L T ~ L 27T ~ 4L 29T ~ 47L T ~ 53L

17 TECHNICAL INFORMATION (Unit: m) js6 k5 k6 m5 m6 n6 p6 r6 bearing shaft T ~ 4L.5T ~ 4.5L.5T ~ 5.5L.5T ~ 6.5L 2T ~ L.5T ~ 9.5L 31T ~11L 37.5T ~.5L 44.5T ~.5L 51T ~ L 5T ~ 1L 65T ~ 2L bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft bearing shaft T ~ 1T T ~ 1T T ~ 1T 21T ~ 2T T ~ 2T 3T ~ 2T 3T ~ 3T 46T ~ 3T 54T ~ 4T 62T ~ 4T 69T ~ 4T 77T ~ 5T T ~ 1T 1T ~ 1T 2T ~ 1T T ~ 2T 3T ~ 2T 36T ~ 2T T ~ 2T 53T ~ 3T 63T ~ 4T 71T ~ 4T T ~ 4T 9T ~ 4T T ~ 4T 2T ~ 6T 23T ~ 7T 27T ~ T T ~ 9T 39T ~ 11T 4T ~ T 5T ~ T 67T ~ T 7T ~ 2T 6T ~ 21T 95T ~ 23T 2T ~ 4T 23T ~ 6T 26T ~ 7T 31T ~ T 37T ~ 9T T ~ 11T T ~ T 65T ~ T 76T ~ T 7T ~ 2T 97T ~ 21T 1T ~ 23T T ~ T 27T ~ 1T 31T ~ T 3T ~ T T ~ T 54T ~ 2T 65T ~ 23T 77T ~ 27T 9T ~ 31T 11T ~ 34T 1T ~ 37T 1T ~ 4T 2T ~ T T ~ T 37T ~ 1T T ~ T 54T ~ 26T 66T ~ T 79T ~ 37T 93T ~ 43T 19T ~ 5T 3T ~ 56T T ~ 62T 3T ~ 6T 1T ~ 63T 1T ~ 65T 11T~ 6T 6T ~ 77T 9T ~ T 3T ~ 4T 1T ~ 94T 5T ~ 9T T ~ 1T 19T ~ 1T 211T ~ 6T 2T ~ 1T Nominal bore diameter of bearing d over incl K7 1T ~ L T ~ L T ~ L 1T ~ 1L 21T ~ L T ~ L 2T ~ 3L 2T ~ 37L 33T ~ 43L 36T ~ 51L 4T ~ 57L T ~ 63L M7 housing bearing housing bearing housing bearing housing bearing T ~ L 1T ~ L 21T ~ 9L T ~ 11L 3T ~ L T ~ L 4T ~ 1L 4T ~ L 46T ~ 3L 52T ~ L 57T ~ 4L 63T ~ L N7 19T ~ 4L 23T ~ 3L 2T ~ 2L 33T ~ 3L 39T ~ 4L T ~ 5L 52T ~ 6L 52T ~ L 6T ~ L 66T ~ 21L 73T ~ L T ~ 2L P7 T ~ 1L 29T ~ 3L T ~ 5L T ~ 6L 52T ~ L 59T ~ 9L 6T ~ 1L 6T ~ 3L 79T ~ 3L ~1L 9~1L 1T ~ Nominal outside diameter of bearing d over incl (Unit: m)

18 TECHNICAL INFORMATION 4. Bearing internal clearance Table 4.1 Radial internal clearance of needle roller bearings (Unit: m) Nominal bore diameter d () C2 CN C3 C4 over incl. min. max. min. max. min. max. min. max I Lubrication 5.1 Lubrication of rolling bearings The purpose of bearing lubrication is to prevent direct metallic contact between the various rolling and sliding elements. This is accomplished through the formation of a thin oil (or grease ) film on the contact surfaces. However, for rolling bearings, lubrication has the following advantages: (1) Friction and wear reduction (2) Friction heat dissipation (3) Prolonged bearing life (4) Prevention of rust (5) Protection against harmful elements In order to achieve the above effects, the most effective lubrication method for the operating conditions must be selected. Also, a good quality, reliable lubricant must be selected. In addition, an effectively d&sign&d seating system that prevents the intrusion of damaging elements (ust, water, etc.) into the bearing interior, removes dust and other impurities from the lubricant, and prevents the lubricant from leaking to the outside, is also a requirement.almost all rolling bearings use either grease or oil lubrication methods, but in some special applications, a solid lubricant such as molybdenum disulfide or graphite may be used. 1

19 TECHNICAL INFORMATION 5.2 Lubrication methods and characteristics The lubrication methods come in two general methods: grease or oil, each with their own characteristics. These characteristics are shown in table 5.1 Table 5.1 Comparison of grease lubrication and oil lubrication characteristics Method Concern Handling Reliability Cooling effect Seal, s structure Power loss Environment contamination High speed rotation Grease lubrication Very good Good Poor Good Good Good Poor Oil lubrication Fair Very good Good (circulation necessary) Fair Good Fair Good 5.2 Grease lubrication Grease type lubricants are relatively easy to handle and require only the simplest sealing devices. For these reasons, grease is the most widely used lubricant for rolling bearings Types and characteristics of grease Lubricating grease are composed of either a mineral ol base or a synthetic oil base. To this base a thickener and other additives are added. The properties of all greases are mainly determined by the kind of base oil used and by the combination of thickening agent and various additives. Standard greases and their characteristics are listed in Table 5.2 as performance characteristics of even the same type of grease will vary widely from brand to brand, it is best to check the manufacturers' data when selecting a grease. Also, greases of different brands should not be mixed because of the different additives they contain. However, if different greases must be mixed, at least greases with the same base oil and thickening agent should be selected. But even when greases of the samel base oil and thickening agent are mixed, the quality of U grease may still change due to the difference in additives. For this reason, changes in consistency and other qualities should be checked before being applied. 19

20 TECHNICAL INFORMATION Table 5.2 Grease varieties and characteristics Grease name Lithium grease Sodium grease (Fiber grease) Thickener Li soap Na soap Base oil ropping point Operating temperature range C Mechanical stability Pressure resistance Water resistance Applications Mineral oil ~ 19 3 ~ + Excellent Good Good Widest range of applications. Grease used in all types of rolling bearings. iester oil ~ 19 5 ~ + Good Good Good Excellent low temperature and wear characteristics. Suitable for small sized and miniature bearings. Silicone oil 2 ~ 5 ~ + Good poor Good Suitable for high and low temperatures. Unsuitable for heavy load applications due to low oil film strength. Mineral oil ~ 1 2 ~ + Excellent ~ Good Good Good ~ poor Some emulsification when water is introduced. Excellent characteristics at relatively high temperatures. Calcium compound base grease Ca+Na soap Ca+Li soap Mineral oil ~ 1 2 ~ + Excellent ~ Good Excellent ~ Good Good ~ poor Excellent pressure resistance and mechanical stability. Suitable for bearings receiving shock loads. Grease name Thickener Base oil ropping point Operating temperature range C Mechanical stability Pressure resistance Water resistance Applications Aluminum grease Al soap Mineral oil 7~9 1 ~ + Good ~ poor Good Good Excellent viscosity characteristics. Suitable for bearings subject to vibrations. Nonsoap base grease Thickener Bentone, silica gel, urea, carbon black, fluorine compounds, etc. Mineral oil Synthetic oil or above or above 1 ~ + Good Good 5 ~ +2 Good Good Good Good Can be used in a wide range of low to high temperatures. Shows excellent heat resistance, cold resistance, chemical resistance, and other characteristics when matched with a suitable base oil and thickener. Grease used in all types of rolling bearings. Note: The figures given for operating temperature range are standard characteristic values, and are not guaranteed. 2

21 TECHNICAL INFORMATION Amount of grease The amount of grease used in any given situation will depend on many factors relating to the size and shaped the housing, space limitations, bearing's rotating speed and type of grease used. As a general rule, housings and bearings should be only filled from 5% to % of their capacities. Where speeds are high and temperature rises need to be kept to a minimum, a reduced amount of grease should be used. Excessive amounts of grease cause temperature rise which in turn causes the grease to soften and may allow leakage. With excessive grease fills oxidation and deterioration may cause lubricating efficiency to be lowered. Moreover, the standard bearing space can be found by below formula (5.1) V=K. W... Formula (5.1) where, V : Quantity of bearing space open type (approx.) cm K : Bearing space factor (Table 5.3) W : Mass of bearing kg (See bearing tables) Table 5.3 Bearings space ratio K 3 Bearing type Needle roller bearings Retainer type Pressed or Machined retainer K 21

22 TECHNICAL INFORMATION 6. Load rating and life 6.1 Bearing life Even in bearings operating under normal conditions, the surfaces of the raceway and rolling elements are constantly being subjected to repeated compressive stresses which causes flaking of these surfaces to occur. This flaking is due to material fatigue and will eventually cause the bearings to fail. The effective life of a bearing is usually defined in terms of the total number of revolutions a bearing can undergo before flaking of either the raceway surface or the rolling element surfaces occurs. Other causes of bearing failure are often attributed to problems such as seizing, abrasions, cracking, chipping, gnawing, rust, etc. However, these so called "causes" of bearing failure are usually themselves caused by improper installation, insufficient or improper lubrication, faulty sealing or inaccurate bearing selection. Since the above mentioned "causes" of bearing failure can be avoided by taking the proper precautions, and are not simply caused by material fatigue, they are considered separately from the flaking aspect. 6.2 Basic rated life and basic dynamic load rating A group of seemingly identical bearings when subjected to identical load and operating conditions will exhibit a wide diversity in their durability. This " life " disparity can be accounted for by the difference in the fatigue of the bearing material itself. This disparity is considered statistically when calculating bearing life, and the basic rated life is defined as follows. The basic rated life is based on a 9% statistical model which is expressed as the total number of revolutions 9% of the bearings in an identical group of bearings subjected to identical operating conditions will attain or surpass before flaking due to material fatigue occurs. For bearings operating at fixed constant speeds, the basic rated life (9% reliability) is expressed in the total number of hours of operation. The basic dynamic load rating is an expression of the load capacity of a bearing based on a constant load which the bearing can sustain for one million revolutions (the basic life rating). For radial bearings this rating applies to pure radial loads, and for thrust bearings it refers to pure axial loads. The basic dynamic load rating s given in the bearing tables of this catalog are for bearings constructed of standard bearing materials, using standard manufacturing techniques. Please consult Engineering for basic load ratings of bearings constructed of special materials or using special manufacturing techniques. The relationship between the basic rated life, the basic dynamic load rating and the bearing load is given in formula (6.1). L C 1 =( ) P... Formula (6.1) P where, P = 1/3... For needle roller bearings L 6 1 : Basic rating life 1 revolutions C : Basic dynamic rating load, N ( Cr: radial bearings, Ca: thrust bearings) P : Equivalent dynamic load, N ( Pr: radial bearings, Pa: thrust bearings)

23 TECHNICAL INFORMATION The basic rating life can also be expressed in terms of hours of operation (revolution), and is calculated as shown in formula (6.2). L p 1h = h 5 f... Formula (6.2) n r/min 6 4 Roller bearings.. fn L 1h n 6 f h f C h =fn P... Formula (6.3) 1/p f = ( 33.3 n )... Formula (6.4) n where, L1 : Basic rating life, h f h : Life factor f n : Speed factor n : Rotational speed, r/min Formula (6.2) can also be expressed as shown in formula (6.5). L 1h 1 = ( C P )... 6 P Formula (6.5) n 1.4 The relationship between Rotational speed n and speed factor fn as well as the relation between the basic rating life L1h and Fig. 7.1 Bearing life rating scale the life factor fn is shown in Fig When several bearings are incorporated in machines or equipment as complete units, all the bearings in the unit are considered as a whole whencomputing bearing life (see formula 6.6). The total bearing life of the unit is a life rating based on the viable lifetime of the unit before even one of the bearings fails due to rolling contact fatigue. L =... Formula (6.6) where, e = 9/...For roller bearings L = Total basic rating life or entire unit, h L, L...L : Basic rating life or individual bearings, 1, 2,... n, h 1 2 n 6 1 ( 1 L e ) 1/e 1 L e 2 L e n 6.3 Machine applications and requisite life When selecting a bearing, it is essential that the requisite life of the bearing be established in relation to the operating conditions. The requisite life of the bearing Is usually determined by the type of machine in which the bearing will be used, and duration of service and operational reliability requirements. A general guide to these requisite life criteria is shown in Table 6.1. When determining bearing size, the fatigue life of the bearing is an important factor; however, besides bearing life, the strength and rigidity of the shaft and housing must also be taken into consideration

24 TECHNICAL INFORMATION 6.4 Adjusted life rating factor The basic bearing life rating ( 9% reliability factor) can be calculated through the formula mentioned earlier in Section 6.2. However, in some applications a bearing life factor of over 9% reliability may be required. To meet these requirements, bearing life can be lengthened by the use of specially improved bearing materials or special construction techniques. Moreover, according to elastohydrodynamic lubrication theory, it is clear that the bearing operating conditions (lubrication, temperature, speed, etc.) all exert an effect on bearing life. L na P = a. a. a (C/P)... Formula (6.7) where, L : Adjusted life rating in millions of revolutions ( na )(adjusted for reliability, material and operating conditions) a1 : Reliability adjustment factor a2 : Material adjustment factor a : Operating condition adjustment factor Life adjustment factor for reliability a1 The values for the reliability adjustment factor as (for a reliability factor higher than 9%) can be found in Table 6.1. Table 6.1 Reliability adjustment factor values a 1 Reliability % Ln Reliability factor a L1 L5 L4 L3 L2 L

25 TECHNICAL INFORMATION Life adjustment factor for material a2 The life of a bearing is affected by the material type and quality as well as the manufacturing process. In this regard, the life is adjusted by the use of an a factor. The basic dynamic load ratings listed in the catalog are based on s standard material and process, therefore, the adjustment factor a2 =1. When special materials or processes are used the adjustment factor can be larger than 1. Bearings can generally be used up to C. If bearings are operated at a higher temperature, the bear ing must be specially heat treated (stabilized) so that inadmissible dimensional change does not occur due to chan ges in the microstructure. This special heat treatment might cause the reduction of bearing life because of a hardness change Life adjustment factor a3 for operating conditions The operating conditions life adjustment factor a3 is used to adjust for such conditions as lubrication,operating temperature, and other operation factors which have an effect on bearing life. Generally speaking, when lubricating conditions are satisfactory, the a3 factor has a value of one; and when lubricating conditions are exceptionally favorable, and all other operating conditions are normal, a3 can have a value greater than one. However, when lubricating conditions are particularly unfavorable and the oil film formation on the contact surfaces of the raceway and rolling elements is insufficient, the v alue of a3 becomes less than one.this insufficient oil film formation can be caused, for example, by the lubricating oil viscosity being too low for the operating temperature ( below 2/s for ball bearings ; below 2 2/s for roller bearings) ; or by exceptionally low rotational speed ( n r/min x dp less than 1,). For bearings used under special operating conditions, please consult Engineering. As the operating temperature of the bearing increases,the hardness of the bearing material decreases. Thus, the bearing life correspondingly decreases. The operating temperature adjustment values are shown in Fig Life of bearing with oscillating motion The life of a radial bearing with oscillating motion can be calculated according to formula (6.). Losc = LRot... Formula (6.) Operating temperature c where, Losc : life for oscillating bearing LRot : rating life at assumed number of rotations same as oscillation cycles : oscillation factor (Fig.6.3 indicates the relationship between half oscillation angle and ). Life adjustment value a Fig. 6.2 Life adjustment value for operating temperature

26 TECHNICAL INFORMATION Fig. 6.3 is valid only when the amplitude exceeds a certain degree (critical angle 2 c ). The critical angle is determined by the internal design of the bearing, in particular by the number of rolling elements in one row. Critical angle values are given in Table 6.3.When the magnitude of the oscillation is less than the critical angle, the life may be shorter than that calculated to be the value in Fig.6.3 It is safer to calculate life with the factor corresponding to the critical angle. For the critical angle of an individual bearing, please consult Engineering. Where the amplitude of the oscillation 2 is small, it is difficult for a complete lubricant film to form on the contact surfaces of the rings and rolling elements, and fretting corrosion may occur. Therefore it is necessary to 3 exercise extreme care in the selection of bearing type, 2 2 lubrication and lubricant. Table 6.3 Critical angle Number of rolling elements Half critical angle c Life of bearing with linear motion With a linear motion bearing such as a linear ball bearing or linear flat roller bearing, the relation among the axial travel distance, bearing load, and load rating is expressed by formulas (6.9) degrees Fig. 6.3 Relationship between half angle and factor When the rolling elements are rollers: 1 L = 1 X ( Cr ) 3...(6.9) P where, r L : Load rating km Cr : Basic dynamic load rating [kgf] Pr : Bearing load [kgf] Cr/Pr Fig. 6.4 suarizes the relation between Cr/Pr and L. Ball bearing Roller bearing Fig. 6.4 Life of bearing with axial motion L 1 km 26

27 TECHNICAL INFORMATION If the cycle and travel distance within a particular travel motion remain constant, the rating life of the bearing can be determined by formulas (6.1). L h 5X Cr 3 = ( )... Formula (6.1) 1.S Pr Where, Lh : Travel life, h S : Travel distance per minute, m/min. S =2. L. N L : Stroke length, m n : Stroke cycle, N{kgf} Basic static load rating When stationary rolling bearings are subjected to static loads, they suffer from partial permanent deformation of the contact surfaces at the contact point between the rolling elements and the raceway. The amount of deformity increases as the load increases, and if this increase in load exceeds certain limits, the subsequent smooth operation of the bearings is impaired. It has been found through experience that a permanent deformity of.1 times the diameter of the rolling element, occurring at the most heavily stressed contact point between the raceway and the rolling elements, can be tolerated without any impairment in running efficiency. The basic rated static load refers to a fixed static load limit at which a specified amount of permanent deformation occurs. It applies to pure radial loads for radial bearings and to pure axial loads for thrust bearings. The maximum applied load values for contact stress occurring at the rolling element and raceway contact points are given below. For roller bearings 4, Mpa 6. Allowable static equivalent load Generally the static equivalent load which can be permitted is limited by the basic static rated load as stated in Section 6.7. However, depending on requirements regarding friction and smooth operation, these limits may be greater or lesser than the basic static rated load. In the following formula (6.11) and Table 6.4the safety factor So can be determined considering the maximum static equivalent load. So = Co / Po... Formula (6.11) where, So : Safety factor Co : Basic static rated load, N (radial bearings: Cor, thrust bearings: Coa ) Po max : Maximum static equivalent load, N (radial: Por max, thrust: Coa max) 27

28 TECHNICAL INFORMATION Table 6.4 Minimum safety factor values So Operating conditions High rotational accuracy demand Normal rotating accuracy demand (Universal application) Slight rotational accuracy deterioration permitted (Low speed, heavy loading, etc.) Roller bearings Note 1 : For drawncup needle roller bearings, min. So value=3. 2 : When vibration and/or shock loads are present, a load factor based on the shock load needs to be included in the Po max value. 7. Bearing handling Bearings are precision parts and, in order to preserve their accuracy and reliability, care must be exercised in their handling. In particular, bearing cleanliness must be maintained, sharp impacts avoided, and rust prevented. 7.1 Bearing storage Most rolling bearings are coated with a rust preventative before being packed and shipped, and they should be stored at room temperature with a relative humidity of less than 6%. 7.2 Installation When bearings are being installed on shafts or in housings, the bearing rings should never be struck directly with a haer or a drift, as shown in Fig..1, because damage to the bearing may result. Any force applied to the bearing should always be evenly distributed over the entire bearing ring face Installation preparations Bearings should be fitted in a clean, dry work area. Specially for small and miniature bearings, a "clean room" should be provided as any contamination particles in the bearing will Fig..1 greatly affect bearing efficiency. Before installation, all fitting tools, shafts, housings, and related parts should be cleaned and any burrs or cutting chips removed if necessary. Shaft and housing fitting surfaces should also be checked for roughness, dimensional and design accuracy, and to ensure that they are within allowable tolerance limits. Bearings should not be unwrapped until just prior to installation. Normally, bearings to be usedwith grease lubricant can be installed as is, without removing the rust preventative. However, for bearings which will use oil lubricant, or in cases where mixing the grease and rust preventative would result in loss of lubrication efficiency, the rust preventative should be removed by washing with benzene or petroleum solvent and dried before installation. Bearings should also be washed and dried before installation if the package has been damaged or there are other chances that the bearings have been contaminated. ouble shielded bearings and sealed bearings, one way clutches should never be washed. 2

29 TECHNICAL INFORMATION Installing cylindrical bore bearings Bearings with relatively small interference fits can be press fit at room temperature by using a sleeve against the inner ring face as shown in Fig Usually, bearings are installed by striking the sleeve with a haer; however, when installing a large number of bearings, a mechanical or hydraulic press should be used. When installing nonseparable bearings on a shaft and in a housing simultaneously, a pad which distributesth fitting pressure evenly over the inner and outer rings is used as shown in Fig When fitting bearings which have a large inner ring interference fit, or when fitting bearings on shafts that have a large diameter, a con siderable amount of force is required to install the bearing at room temperature. Installation can be facilitated by heating and expanding the inner ring beforehand. The required relative temperature difference between the inner ring and the fitting surface depends on the amount of interference and the shaft fitting surface diameter. Fig. 7.4 shows the relation between the bearing inner bore diameter temperature differential and the amount of thermal expansion. In any event, bearings should never be heated above C. 2 2 Fig. 7.2 Fitting sleeve pressure against inner ring u m iametric expansion of inner ring bore Rise in temp difterence heating before/after bearing9 C k5 j5 C 7 C 6 C r6 p6 n6 m6 5 C 4 C 3 C inner ring Fig. 7.3 Temperature differential required for shrinkage fitofinnerring Removal pawl Fig. 7.4 Removal of inner ring using an induction heater 29

30 TECHNICAL INFORMATION The most coonly used method of heating bearings is to ierse them in hot oil. However, this method should not be used for prelubricated shielded and sealed bearings.to avoid overheating parts of the bearings they should never be brought into direct contact with the heat source, but instead should be suspended inside the heating tank orplacedonawire grid. If bearings are dryheated with a heating cabinet or hot plate, they can be mounted without drying. An induction heater can be used to quickly heat bearings in a dry state (always demagnetize). When heated bearings are installed on shafts, the inner rings must be held against the shaft abutment until the bearing has been cooled in order to prevent gaps from occurring between the ring and the abutment face Installation of outer ring Even for tight interference fits, the outer rings of small type bearings can be installed by driving them into housings at room temperature. For large type bearings, the housing can be heated before installing the bearing, or the bearing's outer ring can be cooled with dry ice, etc. Before installing. If dry ice or other cooling agent is used, atmospheric moisture will condense on bearing surfaces, and therefore appropriate rust preventative measures are necessary. 7.3 Post installation running test To in sure that the bearing has been properly in stalled, a running test is performed after installation is completed.the shaft or housing is first rotated by hand and if no problems are observed a low speed, no load power test is performed. If no abnormalities are observed, the load and speed are gradually increased to operating conditions. uring the test if any unusual noise, vibration, or temperature rise is observed the test should be stopped and the equipment examined. If necessary, the bearing should be disassembled for inspection. To check bearing running noise, the sound can be amplified and the type of noise ascertained with a listening instrument placed against the housing. A clear, smooth and continuous running sound is normal. A high, metallic or irregular sound indicates some error in function. Vibration can be accurately checked with a vibration measuring instrument, and the amplitude and frequency characteristics measured against a fixed standard. Usually the bearing temperature can be estimated from the housing surface temperature, However, if the bearing outer ring is accessible through oil inlets, etc., the temperature can e more accurately measured. Under normal conditions, bearing temperature rises with rotation time and then reaches a stable operating temperature after a certain period of time. If the temperature does not level off and continues to rise, or if there is a sudden temperature rise, or if the temperature is unusually high, the bearing should be inspected. 7.4 Bearing disassembly Bearings are often removed as part of periodic inspection procedures or during the replacement of other parts. However, the shaft and housing are almost always reinstalled, and in more than a few cases the bearings themselves are reused. These bearings, shafts, housings, and other related parts must be designed to prevent damage during disassembly procedures, and the proper disassembly tools must be employed. When removing inner and outer rings which have been installed with interference fits, the dismounting force should be applied to that ring only and not applied to other parts of the bearing, as this may cause internal damage to the bearing's raceway or rolling elements. 3

31 TECHNICAL INFORMATION isassembly of bearings with cylindrical bores For smal l type bearings, the pullers shown in Fig. 7.5 or the press method shown in Fig. 7.6 can be used for disassembly. When used properly, these methods can improve disassembly efficiency and prevent damage to bearings. To facilitate disassembly procedures, attention should be given to planning the designs of shafts and housings, such as providing extraction grooves on the shaft and housing for puller claws as shown Figs. 7.7 and 7..Threaded bolt holes should also be provided in housings to facilitate the pressing out of outer rings as shown in Fig Groove Groove Fig. 7.5 Puller disassembly Fig. 7.7 Extracting grooves Groove Fig. 7. Extraction groove for outer ring disassembly Fig. 7.6 press disassembly Fig. 7.9 Outer ring disassembly bolt 31

32

33

34

35 ,4,5,7,9,9,11,19,9,11,11,,26,2,34,36,,21,,31,27,34,44,66,2,27,3,34,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, Basic load ratings Boundary dimensions Fw Ew Bc dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm grease oil Bearing numbers Mass (approx.) kg K3X6X7 K4X7X7 K5XX K5XX1 K6X9X K6X9X1 K6X1X K7X1X K7X1X1 KX11X KX11X1 KX11X KXX1 KXX KXX K9XX1 K9XX K1XX1 K1XX K1XX K1XX1 K1XX K1XX K11XX1 KXX9 KXX KXX KXX Ew Fw Bc NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K

36 Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg KXX KX1X KXX1 KX1X1 KX1X11 KX1X KX1X KX19X KX2X KX2X KX1X KX19X KX2X KX21X KX21X21 KX2X1 KX2X11 KK2X KXX KXX KXX2 KX21X KX21X KXX2 KX23X K1XX1 K1XX K1XX Basic load ratings Bearing numbers Cr Cor Cr Cor Ew Fw Bc grease oil (approx.) Cage and roller type needle roller bearings series K NEELE ROLLER BEARINGS,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, ,75,4,33,46,53,63,1,,95,,6,9,,,,57,61,71,1,,

37 K1XX K1XX K1XX2 K1XX K1XX K19X23X K19X23X K2XX11 K2X26X K2X2X K21XX K21XX KX26X KX27X2 KX2X KX3X K23X2X KX2X KX2X KX29X KX3X KX29X1 KX29X KX3X KX31X KX31X KX31X KX31X21 Ew Fw Bc Cage and roller type needle roller bearings series K NEELE ROLLER BEARINGS Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) 37 37,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, ,,,19,19,,2,11,72,,37,9,,94, ,2,,23,1,,,,3,1,,,1,,26

38 K26X3X K26X3X K26X34X K2XX K2XX21 K2X33X K2X33X27 K2X34X K2X34X K2XX K2XX1 K29X34X27 K3X37X K3X37X1 K3X3X1 KX37X KX3X26 KX39X KX39X1 KX4X KX4X KX41X KX41X KXX KXX1 KXX2 KXX3 K37XX Ew Fw Bc Cage and roller type needle roller bearings series K NEELE ROLLER BEARINGS Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) 3 3,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, ,11,,41,,2,,,2,,29,31,33,29,34,36,1,41,34,37,19,,26,27,,39,41,62,21

39 Ew Fw Bc K37X44X1 K3X43X K3X43X27 K3X46X K4XX K4XX K4XX21 K4XX27 K4X46X K4X47X1 K4X47X2 K4X4X2 K4X4X KX47X KX47X27 KX4X KX5X2 K43X4X K43X4X27 K43X5X1 KX49X19 KX5X27 KX52X1 KX52X21 KX53X2 KX53X K47X52X K47X52X27 NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) 39 39,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, ,43,73,,27,37,44,3,,4,52,65,2,47,36,54,29,46,49,27,5,51,61,62,77,33,51,,26

40 Ew Fw Bc K5XX2 K5XX27 K5XX3 K5X57X1 K5X5X2 K5X5X K52X5X19 KX6X KX6X2 KX6X3 KX61X19 KX61X2 KX61X3 KX62X1 KX63X2 KX63X KX63X K5X64X19 K6X65X2 K6X65X3 K6X66X19 K6X66X2 K6X66X3 K6X6X K6X6X2 K6X6X23 K4X54X19 K5XX.5 NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) ,,53,59,53,65,1,4,43,,69,51,54,1,54,73,,1,52,51,71,53,56,4,5,77,92,44,23

41 Ew Fw Bc K6X6X K6X6X27 K61X66X2 K61X66X3 K63X7X21 K64X7X K65X7X2 K65X7X3 K65X73X23 K65X73X3 K6X74X2 K6X74X3 K6X75X21 K7X76X2 K7X76X3 K7X77X21 K7X7X23 K7X7X3 K72X79X21 K73X79X3 K75X1X3 K75X2X21 K75X3X23 K75X3X3 KX6X2 KX6X3 KXX23 KXX26 NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) 41 41,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2, ,54,73,75,53,,3,1,6,65,97,77,7,1,,,6,5,,1,,1,7,77,11,1,1,97,9

42 Ew Fw Bc KXX3 K5X92X3 K5X93X27 K5X93X3 K9X97X2 K9X97X3 K9X9X26 K9X9X27 K9X9X3 K95XX21 K95XX31 K95XX27 K95XX3 K1XX21 K1XX31 K1X1X27 K1X1X3 KX1X21 KX1X31 KX1X3 K11X1X K11X1X34 K11X11X3 K1X3X27 K1X1X34 KX7X KX7X34 K1X3X NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.),2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,2,,65,65,65,65,65,65,65,65,65,65,65,65,65,65, ,7,2,1,,,1,,,2,1,2,9,5,,3,6,19,,6,19,1,,2,2 3,,2,275

43 Ew Fw Bc K1X1X34 KX7X KX7X34 K1X3X K1XX3 K1X3X26 K1X3X2 K1X3X36 KXX46 K5X3X26 K5X3X36 KXX46 K5X3X26 K5X3X K5X3X36 KX1X46 K5XX KX195X37 K195XX37 K21XX KX23X KXX K265X2X5 K25X3X5 Boundary dimensions Fw Ew Bc dynamic static dynamic static N kgf Limiting speeds rpm Mass kg Basic load ratings Bearing numbers Cr Cor Cr Cor grease oil (approx.) NEELE ROLLER BEARINGS Cage and roller type needle roller bearings series K,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65,65, ,,,59,,2,,27,57, ,62 6,56,62,74,79,5 1,1 1,97

44

45

46

47

48 rawn cup needle roller bearings series HK.., BK.. Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm grease oil Bearing numbers Mass (approx.) kg BK36 BK4 BK59 BK69 BK79 BK1 BK91 BK9 BK11 BK1 BK1 BK1 BK Bk C C1 max HK36 HK4 HK59 Hk69 HK79 HK1 HK91 HK9 HK11 HK1 HK1 HK1 HK HK Open end design Closed end design Appropriate inner ring (as a reference) NEELE ROLLER BEARINGS C Fw C Fw C1 Type HK Type BK , 1,6 1,6 1,6 1,6 1,6 1,6 1,6 1,6 1,6 1,6 1,6 2,7 2, ,6,7,,1,19,21,,,,27,,34,,39,,,3,,,5,56,62,46,52,91,1,1,11 6,5 6,5,, 9, 9, 1, 1, 11, 11,,,,,,,,,,,,,,, 1, 1, 19, 19,,2 IR 5XX IR 5XX IR 6X9X IR 6X9X IR 6X9X IR 6X9X IR 7X1X IR 7X1X IR 7X1X IR 7X1X IR 7X1X IR 7X1X IR XX IR XX IR XX,5 IR XX,5 IR1XX,5 IR1XX,5

49 Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm grease oil Bearing numbers Mass (approx.) kg C C1 max Open end design Closed end design Appropriate inner ring (as a reference) BK BK BK BK BK BK BK BK1 BK1 BK2 BK2 BK BK BK HK HK HK HK HK HK HK HK1 HK1 HK2 HK2 HK HK HK rawn cup needle roller bearings series HK.., BK.. NEELE ROLLER BEARINGS C Fw C Fw C1 Type HK Type BK,2 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7,11,,,,11,,,,,,,1,,,,,1,2,,,19,,,27,,,21, IR1XX IR1XX IRXX,5 IRXX,5 IRXX,5 IRXX,5 IRXX IRXX IRX1X,5 IRX1X,5 IRX1X,5 IRX1X,5 IRX2X IRX2X IRX2X,5 IRX2X,5 IRX2X2,5 IRX2X2,5 IRXX IRXX IRXX1 IRXX1 IRXX2 IRXX2 2,7 2,7

50 Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm grease oil Bearing numbers Mass (approx.) kg C C1 max Open end design Closed end design Appropriate inner ring (as a reference) BK2 BK BK BK2 BK26 BK2 BK22 BK3 BK3 Bk BK6 BK BK Bk HK2 Hk HK HK2 HK26 HK2 HK22 HK3 HK3 HK HK6 HK HK HK2 C Fw C Fw C1 Type HK Type BK rawn cup needle roller bearings series HK.., BK.. NEELE ROLLER BEARINGS 5 5,2 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7 2,7,26,3,21,23,27,31,34,39,,49,3,34,3,43,,2,,37,4,47,53,59,2,33,37,44,46, IRXX2,5 IRXX2,5 IR2XX,5 IR2XX,5 IR2XX IR2XX IR2XX2,5 IR2XX2,5 IR2XX26,5 IR2XX26,5 IRX2X IRX2X IRX2X2,5 IRX2X2,5 IRX3X,5 IRX3X,5 IRX3X IRX3X IRX3X2,5 IRX3X2,5 IRX3X26,5 IRX3X26,5

51 NEELE ROLLER BEARINGS rawn cup needle roller bearings series HK.., BK.. C C C1 Fw Fw Type HK Type BK Boundary dimensions Fw 4 C 47,2 C1 max Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Limiting speeds rpm grease oil Bearing numbers Open end design HK4 Closed end design Mass kg (approx.),31 Appropriate inner ring (as a reference) IR X4X, , BK4,3 IR X4X, HK4,41 IR X4X , BK4,51 IR X4X HK,52 IR X4X2, , BK,64 IR X4X2, HK,46 IR 4XX 52 2, BK,5 IR 4XX HK2,5 IR 4XX2, , BK2,72 IR 4XX2, HK52,72 IR 4X5X , BK52,7 IR 4X5X HK5,9 IR X5X, , BK5,19 IR X5X,5 51

52 NEE2RSE RO2RS2RSER BEARINGS rawn cup needle roller bearings sealed type series HK..RS, HK..2RS, BK..RS C1 C2 C1 C3 Fw Fw Fw Type HK..RS (Open end, single seal) Type HK..2RS (Open end,single seal) Type BK..RS (Closed end,single seal) Fw Boundary dimensions 1 C1,2 C2,2 C3 max 2,7 Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Limiting speeds rpm grease 1. open end single seal HKRS Bearing numbers oen end double seal HK 2RS closed end single seal BKRS 2 2, HKRS HK 2RS BKRS 21 2, HKRS HK 2RS BKRS 2, HKRS HK 2RS BKRS 1 2, HK1RS HK1 2RS BK1RS HK2 2RS , HK21RS HK 2RS BK21RS HK 2RS , HK1RS HK2 2RS BK1RS HK 2RS 1 2 2, HK1RS HK2 2RS BK1RS HK22 2RS HK3 2RS , HK31RS HK 2RS BK31RS HK 2RS 1 2 2, HK1RS HK2 2RS BK1RS HK4 2RS ,7 2,7 2, HK41RS HK1RS HK5RS HK 2RS HK2 2RS HK5 2RS BK41RS BK1RS BK5RS 52

53 NEELE ROLLER BEARINGS rawn cup needle roller bearings sealed type series HK..RS, HK..2RS, BK..RS C1 C2 C1 C3 Fw Fw Fw Type HK..L (Open end, single seal) Type HK..LL (Open end,single seal) Type BK..L (Closed end,single seal) single seal IR 9 Appropriate inner ring (as a reference) double seal open end single seal HKRS Bearing numbers oen end double seal HK 2RS closed end single seal BKRS open end single seal 11 Mass kg (approx.) oen end double seal, closed end single seal IR 1 IR 1 2 HKRS HK 2RS BKRS, IR,5 IR,5 HKRS HK 2RS BKRS, IR IR 1 IR 2 IR 1,5 HKRS HK1RS HK 2RS HK1 2RS BKRS BK1RS,, IR 2 1 HK2 2RS,19 IR 2 2 IR 2 2,5 IR 1 HK21RS HK 2RS HK 2RS BK21RS 21,,2 IR 2 5 IR 23 HK1RS HK2 2RS BK1RS,26 27 IR 2 1 HK 2RS,27 IR 2 2 IR 2 23 HK1RS HK2 2RS BK1RS 31,33 IR 2 23 HK22 2RS,37 IR 3 2 IR 4 2 IR 4 2 IR 5 IR 3 1 IR 3 23 IR 4 IR 5,5 HK31RS HK1RS HK41RS HK1RS HK5RS HK3 2RS HK 2RS HK 2RS HK2 2RS HK4 2RS HK 2RS HK2 2RS HK5 2RS BK31RS BK1RS BK41RS BK1RS BK5RS ,27,39,36,4,41,5,57,

54

55

56

57

58 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA r C r r C r s d F d F Type 49 ( d 9 ) Boundary dimensions Type NA 49..R ( d 1) Type NA 59 Type NA 69..R ( d 3 ) Limiting speeds rpm Bearing numbers d 5 C 1 rs min 1), F 7 s 2) grease 23. oil 34. NA , 21.. NA , NA , NA NA499 1,5.. NA49, NA491 1,. 23. NA ,5. 2. NA ,5. 2. NA ,. 2. NA692 3,5. 1. NA ,5. 1. NA ,. 1. NA , 11.. NA , 11.. NA , 11.. NA , 9.5. NA49/ , 9.5. NA59/ , NA69/ 3,.5. NA ,.5. NA ,.5. NA695 2,.5. NA49/2 2 23,.5. NA59/ ,.5. NA69/2 3 47, NA , NA596 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 2) These values are the possible axial displacement of the inner ring against outer ring. 5

59 Bearing numbers Abutment dimensions da a ras min max max Mass (approx.) kg Basic load ratings N Cr Cor kgf Cr Cor ra a da ra a da ra ra ra a da dynamic static dynamic static NA495 NA496 NA497 NA49 NA499 NA49 NA491 NA691 NA492 NA592 NA692 NA493 NA593 NA693 NA494 NA594 NA694 NA49/ NA59/ NA69/ NA495 NA595 NA695 NA49/2 NA59/2 NA69/2 NA496 NA596 NEELE ROLLER BEARINGS ,2, 9, 1, 11,,,,,,, 19, 19, 19,,,,,,, 27, 27, 27, 3, 3, 3,,,,5 9,5,, 2,,, 26, 26, 26, 2, 2, 2,,,, 37, 37, 37, 4, 4, 4, 43, 43, 43,,,,,,,7,9,1,,,,26,46,36,52,64,56,37,69,74,1,1,,4,4,,9,2,9,2,9,11, Machinedring needle roller bearings with inner ring series NA

60 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA r C r r C r s d F a d F Type NA 49..R ( d 1) Type NA 59 Type NA 69..R ( d 3 ) Boundary dimensions Type NA 69..R ( d ) Limiting speeds rpm Bearing numbers d 3 47 C 3 rs min 1) F s 2) 1, grease 7.5 oil 11. NA ,6 4, NA49/ 52 27,6 4, NA59/ 52 36,6 4, NA69/ 2,6, NA497 27,6, NA597 36,6, NA ,6 4 1, NA ,6 4 1, NA ,6 4, NA69 6,6 52 1, NA ,6 52 1, NA ,6 52, NA ,6 5 1, NA ,6 5 1, NA ,6 5, NA691 1, NA , NA5911 1, NA , NA , NA , NA , NA , NA , NA , NA , NA , 1, NA69 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 2) These values are the possible axial displacement of the inner ring against outer ring. 6

61 ra a da ra ra ra a da NA696 NA49/ NA59/ NA69/ NA497 NA597 NA697 NA49 NA59 NA69 NA499 NA599 NA699 NA491 NA591 NA691 NA4911 NA5911 NA6911 NA49 NA59 NA69 NA49 NA59 NA69 NA49 NA59 NA69 NEELE ROLLER BEARINGS Bearing numbers Abutment dimensions da a ras min max max Mass (approx.) kg Basic load ratings N Cr Cor kgf Cr Cor dynamic static dynamic static , 36, 36, 36, 39, 39, 39, 44, 44, 44, 49, 49, 49, 54, 54, 54, 6, 6, 6, 65, 65, 65, 7, 7, 7, 75, 75, 75,, 4, 4, 4, 51, 51, 51, 5, 5, 5 64, 64, 64, 6, 6, 6, 75, 75, 75,,,, 5, 5, 5, 95, 95, 95,,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,,,7,1,26,1,6 1,2 4,6,27 96,437,276,49,529 96,9,726,7,6,75,4,6,779,727 1,6 1,34 Machinedring needle roller bearings with inner ring series NA

62 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA r C r r C r s d F a d F Type NA 4 Type NA 49..R ( d Type NA 59 1) Type NA 69..R ( d ) Boundary dimensions Limiting speeds rpm Bearing numbers d C rs min 1) F s 2) grease oil , 1, 1, 1, 1, 1, 1,1 1,1 1,1 1,1 1,1 1,1 1,1 1,1 1,1 1,1 1,1 1, 1,1 1,1 1, 1,1 1,1 1,1 1, , 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,, 2, 2,, 2, 2, 1, 1, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 2) These values are the possible axial displacement of the inner ring against outer ring NA49 NA59 NA69 NA49 NA59 NA69 NA49 NA59 NA69 NA491 NA591 NA691 NA4919 NA5919 NA6919 NA492 NA592 NA4 NA49 NA59 NA4 NA49 NA59 NA6 NA4926 NA5926 NA NA492

63 NEELE ROLLER BEARINGS ra a da ra ra ra a da NA49 NA59 NA69 NA49 NA59 NA69 NA49 NA59 NA69 NA491 NA591 NA691 NA4919 NA5919 NA6919 NA492 NA592 NA4 NA49 NA59 NA4 NA49 NA59 NA6 NA4926 NA5926 NA NA492 Bearing numbers Abutment dimensions da a ras min max max Mass (approx.) kg Basic load ratings N Cr Cor kgf Cr Cor dynamic static dynamic static ,, 5, 5, ,5 96,5 1 1,5 1, 1, 6,5 6,5, 6,5,, 5, 9 96,5 1,5 6,5, 1, 1, 1,,,, 1,5 1,5 1, ,5 3,5 3,5 3,5 3,5 1, 3,5 3,5 1,,5,5,5 2, 2,,5 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,,776 1, 1,,2 1, 3 1, 1,76 2, 1,31 1,4 2,44 1,36 1,9 2,63 1,93 2,5 1,11 2, 2,9 1, 2,4 3,92 1,6 3,9 5,6 1,2 4,5 Machinedring needle roller bearings with inner ring series NA

64 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA r C r s d F Type NA 4 Type NA 49..R ( d Type NA 59 1) Boundary dimensions Limiting speeds rpm Bearing numbers d C rs min 1) F s 2) grease oil ,1 2, 1,1 2, 1,1 2, 1,1 2, 2, 2,1 2,1 2, 2,1 2, 2,1 2, 2,1 2,1 3, 2,1 3, 2,1 3, 2, , 2, 2, 2, 2,5 2,5 2, 2, 2, 2, 2, 2, 2, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 2) These values are the possible axial displacement of the inner ring against outer ring NA592 NA43 NA493 NA4 NA49 NA434 NA4934 NA436 NA4936 NA43 NA493 NA44 NA494 NA444 NA4944 NA44 NA494 NA2 NA4952 NA6 NA4956 NA46 NA496 NA464 NA4964 NA46 NA496 NA472

65 NA592 NA43 NA493 NA4 NA49 NA434 NA4934 NA436 NA4936 NA43 NA493 NA44 NA494 NA444 NA4944 NA44 NA494 NA2 NA4952 NA6 NA4956 NA46 NA496 NA464 NA4964 NA46 NA496 NA472 ra a da ra NEELE ROLLER BEARINGS Bearing numbers Abutment dimensions da a ras min max max Mass (approx.) kg Basic load ratings N Cr Cor kgf Cr Cor dynamic static dynamic static ,5 9, 6,5 9, 6,5 9, 16,5 19, 19, 199, 2, 211,, 231, 9, 1, 269, 271, 29, 291, 311, 3, 331, 333, 1, 3, 371,, 12,,5 21, 193,5 211, 2,5 1, 2 1, 2, 1, 2, 269, 262, 29, 291, 39, 311, 349, 341, 369, 369, 47, 39, 7, 49, 447, 9, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,5 2, 2,5 2, 2,5 2, 6,1 2,72 5,33 2,9 5,6 3,99 5,7 4,19,5 5,62,6 5,4,2 6,37,5 1,,7 1,,9,5 27,5,,5 23,2,2,1 47,3,7 Machinedring needle roller bearings with inner ring series NA

66 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA r C r s d F Boundary dimensions Limiting speeds rpm Bearing numbers d C rs min 1) F s 2) grease oil , 2,1 4, 4, 4, 4, , 2, 2, 2,5 2,5 2,5 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 2) These values are the possible axial displacement of the inner ring against outer ring NA4972 NA476 NA4976 NA49 NA494 NA49 66

67 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NA ra ra a da dynamic N Cr 1.2. Basic load ratings static dynamic kgf Cor Cr static Cor Abutment dimensions da a ras min max max 467 2,5 Bearing numbers NA4972 Mass kg (approx.) 49, , NA476 44, , NA , , NA49 76, , NA494 9, , NA49 3, 67

68 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring sealed type series NA49..RS, 2RS r B C r r B C r ra ra d F d F b da a Type NA 49..L ( With single seal ) Type NA 49..LL ( With double seal ) Boundary dimensions d 1 B C F rs min 1) Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Limiting speeds rpm 1. da max Abutment dimensions a max b max 2 ras max Bearing numbers NA49RS NA49 2RS Mass kg (approx.), NA491RS NA491 2RS, NA492RS NA492 2RS, NA493RS NA493 2RS, NA494RS NA494 2RS, NA495RS NA495 2RS, NA496RS NA496 2RS, 21 2, ,6 NA497RS NA497 2RS, , ,6 NA49RS NA49 2RS, , ,6 NA499RS NA499 2RS, , ,6 NA491RS NA491 2RS,295 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 6

69 NEELE ROLLER BEARINGS Machinedring needle roller bearings without inner ring sealed type series RNA49..RS, 2RS C r r C r ra Fw Fw b a Type RNA 49..L ( With single seal ) Type RNA 49..LL ( With double seal ) Boundary dimensions Fw +,27 +, C rs min 1) Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Limiting speeds rpm 1. Abutment dimensions a max b max 2 ras max Bearing numbers RNA49RS RNA49 2RS Mass kg (approx.), +,27 +, RNA491RS RNA491 2RS, ,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,41 +, +,41 +, +,41 +, +,49 +,3 +,49 +, ,6,6,6, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r ,6,6,6,6 RNA492RS RNA493RS RNA494RS RNA495RS RNA496RS RNA497RS RNA49RS RNA499RS RNA491RS RNA492 2RS RNA493 2RS RNA494 2RS RNA495 2RS RNA496 2RS RNA497 2RS RNA49 2RS RNA499 2RS RNA491 2RS,,,,63,72,1,4,7, 69

70 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA C r C r Fw Fw Type RNA 49 ( Fw ) Type RNA 49..R ( Fw ) Type RNA 59 Type RNA 69..R (Fw ) Boundary dimensions Limiting speeds rpm Bearing numbers Fw 7 +, +, C 1 rs min 1), grease 23. oil 34. RNA495 +, +, 1, 21.. RNA , +, 1, RNA , +, 19 11, RNA49 +,27 +, RNA499 +,27 +,.. RNA49 +,27 +,. 23. RNA491 +,27 +,. 23. RNA ,33 +, RNA ,33 +, RNA ,33 +, RNA692 +,33 +, RNA493 +,33 +, RNA593 +,33 +, RNA693 +,33 +, RNA494 +,33 +, RNA594 +,33 +, RNA ,33 +, RNA49/ 2 +,33 +, RNA59/ 2 +,33 +, RNA69/ 3 +,33 +,2.5. RNA ,33 +, RNA ,33 +, RNA695 +,41 +,.5. RNA49/2 +,41 +, RNA59/2 +,41 +, 3.5. RNA69/2 +,41 +, RNA496 +,41 +, RNA596 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 7

71 Basic load ratings Cr Cor Cr Cor N kgf Bearing numbers Mass (approx.) kg Abutment dimensions max max dynamic static dynamic static a ra a ra a ras RNA495 RNA496 RNA497 RNA49 RNA499 RNA49 RNA491 RNA691 RNA492 RNA592 RNA692 RNA493 RNA593 RNA693 RNA494 RNA594 RNA694 RNA49/ RNA59/ RNA69/ RNA495 RNA595 RNA695 RNA49/2 RNA59/2 RNA69/2 RNA496 RNA596 NEELE ROLLER BEARINGS ,5 9,5,, 2,,, 26, 26, 2, 2,,, 37, 37, 4, 4, 43, 43,, 26, 2,, 37, 4, 43,,,,,,,,73,95,,,,,31,,4,,,52,1,5,1,61,1,73,1,69,33,,4,92,11,1,1 Machinedring needle roller bearings with inner ring series RNA

72 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA C r C r Fw Fw Type RNA 49..R ( Fw Type RNA 59 Type RNA 69..R (Fw ) ) Type RNA 69..Type R ( Fw 4) Boundary dimensions Limiting speeds rpm Bearing numbers Fw +,41 +, C rs min 1) 47 3 grease 7.5 oil 11. RNA ,41 +, 52 2, RNA49/ 4 +,41 +, 52 27, RNA59/ 4 +,41 +, 52 36, RNA69/ +,41 +, 2, RNA497 +,41 +, 27, RNA597 +,41 +, 36, RNA ,41 +, 62, RNA49 4 +,41 +, 62 3, RNA59 4 +,41 +, 62 4, RNA ,49 +,3 6, RNA ,49 +,3 6 3, RNA ,49 +,3 6 4, RNA ,49 +,3 72, RNA ,49 +,3 72 3, RNA ,49 +,3 72 4, RNA ,49 +,3 1, RNA ,49 +,3 34 1, RNA ,49 +,3 1, RNA ,49 +,3 5 1, RNA49 6 +,49 +, , RNA59 6 +,49 +,3 5 1, RNA ,49 +,3 9 1, RNA ,49 +, , RNA ,49 +,3 9 1, RNA69 +,49 +, , RNA49 +,49 +, , RNA59 +,49 +, , RNA69 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 72

73 ra a a ra RNA696 RNA49/ RNA59/ RNA69/ RNA497 RNA597 RNA697 RNA49 RNA59 RNA69 RNA499 RNA599 RNA699 RNA491 RNA591 RNA691 RNA4911 RNA5911 RNA6911 RNA49 RNA59 RNA69 RNA49 RNA59 RNA69 RNA49 RNA59 RNA69 NEELE ROLLER BEARINGS Basic load ratings N kgf Bearing numbers Mass kg Abutment dimensions dynamic static dynamic static Cr Cor Cr Cor (approx.) max max a ras ,6,9,9,2,,6,193,,2,6,12,2,273,3,29 2,5 67,47,275,4,4,462,52,46,76,57,6,6,6,6 1, 1, 1, 1, 1, 1, 1, 1,,6,6,6,6,6,6,6,6,6,6,6 1, 1, 1, 1, Machinedring needle roller bearings with inner ring series RNA

74 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA C r C r Fw Fw Type RNA 4 Type RNA 49..R ( Fw Type RNA 59 ) Type RNA 69..Type R ( Fw 4) Boundary dimensions Limiting speeds rpm Bearing numbers 5 Fw +,5 +,36 C rs min 1) 3 1, grease 3.1 oil 4.7 RNA49 5 +,5 +,36 4 1, RNA59 5 +,5 +, , RNA69 9 +,5 +, , RNA49 9 +,5 +, , RNA59 9 +,5 +, , RNA69 1 +,5 +,36 1, RNA49 1 +,5 +, , RNA59 1 +,5 +, , RNA69 +,5 +,36 1 1, RNA491 +,5 +, , RNA591 +,5 +, , RNA ,5 +,36 1, RNA ,5 +, , RNA ,5 +, , RNA ,5 +,36 4 1, RNA ,5 +, , RNA592 +,5 +,36 3 1, RNA4 1 +,6 +,43 4 1, RNA49 1 +,6 +, , RNA59 +,6 +,43 3 1, RNA4 1 +,6 +,43 5 1, RNA49 1 +,6 +, , RNA59 1 +,6 +,43 5 1, RNA6 +,6 +, RNA4926 +,6 +, RNA ,6 +,43 5 1, RNA +,6 +, RNA492 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 74

75 ra a a ra RNA49 RNA59 RNA69 RNA49 RNA59 RNA69 RNA49 RNA59 RNA69 RNA491 RNA591 RNA691 RNA4919 RNA5919 RNA6919 RNA492 RNA592 RNA4 RNA49 RNA59 RNA4 RNA49 RNA59 RNA6 RNA4926 RNA5926 RNA RNA492 NEELE ROLLER BEARINGS Basic load ratings N kgf Bearing numbers Mass kg Abutment dimensions dynamic static dynamic static Cr Cor Cr Cor (approx.) max max a ras , 1, 1,,,, 1,5 1,5 1, ,5 3,5 3,5 3,5 3,5 1, 3,5 3,5 1,,5,5,5 2, 2,,5 12,,49,7,9,5,77,97,657 1, 1,2,697 1,4 1,33,719 1, 1,46 1, 1,76,67 1, 1,9,73 1,6 2,67,95 2,21 3,21 1,2 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, Machinedring needle roller bearings with inner ring series RNA

76 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA C r Fw Type RNA 4 Type RNA 49..R ( Fw Type RNA 59 ) Boundary dimensions Limiting speeds rpm Bearing numbers Fw +,6 +,43 C rs min 1) grease 1.7 oil 2.5 RNA ,6 +, , RNA43 +,6 +, , RNA ,6 +, , RNA4 1 +,6 +,43 6 2, RNA49 +,79 +,5 2 1, RNA ,79 +, , RNA ,79 +,5 2 1, RNA436 +,79 +,5 69 2, RNA ,79 +, RNA43 2 +,79 +, , RNA43 +,79 +, RNA41 2 +,79 +,5 2 2, RNA494 +,79 +, RNA ,79 +,5 3 2, RNA , +, , RNA , +,56 2, RNA , +,56 6 2, RNA2 29 +, +, , RNA4952 +, +, , RNA6 31 +, +, , RNA ,9 +,62 3 2,1 1.2 RNA ,9 +, , 1.2 RNA496 +,9 +,62 4 2, RNA ,9 +, , RNA ,9 +,62 2, RNA46 3 +,9 +, , RNA ,9 +, , RNA472 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 76

77 RNA592 RNA43 RNA493 RNA4 RNA49 RNA434 RNA4934 RNA436 RNA4936 RNA43 RNA43 RNA41 RNA494 RNA444 RNA4944 RNA44 RNA494 RNA2 RNA4952 RNA6 RNA4956 RNA46 RNA496 RNA464 RNA4964 RNA46 RNA496 RNA472 a ra NEELE ROLLER BEARINGS Basic load ratings N kgf Bearing numbers Mass kg Abutment dimensions dynamic static dynamic static Cr Cor Cr Cor (approx.) max max a ras ,,5 21, 193,5 211, 2,5 1, 2 1, 2, 1, 2, 269, 262, 29, 291, 39, 311, 349, 341, 369, 369, 47, 39, 7, 49, 447, 9, 3,4 1,6 2,9 1,7 3,1 2,54 3, 2,6 4,4 3,21 4,53 3, 7,2 3,62 7,1 5,4,4 5,,9 9,3,7,7,,4,2, 26,5, 1, 2, 1, 2, 1, 2, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,5 2, 2,5 2, 2,5 2, Machinedring needle roller bearings with inner ring series RNA

78 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA C r Fw Type RNA 4 Type RNA 49..R ( Fw ) Boundary dimensions Limiting speeds rpm Bearing numbers 4 Fw +,1 +,6 C rs min 1) , grease 65 oil 1. RNA ,1 +, , RNA ,1 +,6 52 4, RNA4976 +,1 +,6 54 4, 6 9 RNA ,1 +,6 56 4, 5 RNA ,1 +,6 6 4, RNA49 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 7

79 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series RNA ra a Basic load ratings Abutment dimensions Bearing numbers Mass dynamic static dynamic static N kgf kg Cr Cor Cr Cor a ras max max (approx.) ,5 3, 3, 3, 3, 3, RNA4972 RNA476 RNA4976 RNA49 RNA494 RNA49 2,2 26, 3,6 4,1 51,6 66,9 79

80 Machinedring needle roller bearings without inner ring series NK r C Fw Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm grease oil Bearing numbers Mass (approx.) kg C Aboutment dimensions rs min 1) NK5/1 NK5/ NK6/1 NK6/ NK7/1 NK7/ NK/ NK/ NK9/ NK9/ NK1/ NK1/ NK/ NK/ NK/ NK/2 NK/ NK/2 NK/ NK/2 NK/ NK/2 NK1/ NK1/2 NK19/ NK19/2 NK2/ NK2/2 Type NK ( Fw ) Type NK..R ( Fw ) r C Fw a ra a ra a ras max max Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension. r NEELE ROLLER BEARINGS,,,, ,5 6,5 7,5 7,5,5,5 9,5 9,5 1 1,5,5 2, 2, 21, 21,,, 23, 23,,,,, 26, 26,,,,,,31,37,47,57,69,2,7,,1,,1,,,,21,26,,27,,2,,3,,31,26,,27,34 +,1 +,1 +,33 +,2 +,1 +,1 +,1 +,1 +,1 +,1 +, +, +, +, +, +, +, +, +, +, +, +, +, +, +, +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,33 +,2 +,33 +,2 +,33 +,2

81 Type NK..R ( Fw ) r C Fw Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm Bearing numbers Mass kg C Aboutment dimensions rs min 1) NK21/ NK21/2 NK/ NK/2 NK/ NK/2 NK/ NK/2 NK26/ NK26/2 NK2/2 NK2/3 NK29/2 NK29/3 NK3/2 NK3/3 NK/2 NK/3 NK/2 NK/3 NK37/2 NK37/3 NK3/2 NK3/3 NK4/2 NK4/3 NK/2 NK/ a ra grease oil (approx.) max max a ras Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension. r NEELE ROLLER BEARINGS 1 1 +,41 +, +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, ,2,,34,37,,4,33,,34,,52,2,54,4,65,9,6,,74,1,77,,79,,3,1,6, Machinedring needle roller bearings without inner ring series NK

82 Basic load ratings Boundary dimensions Fw dynamic static dynamic static Cr Cor Cr Cor N kgf Limiting speeds rpm Bearing numbers Mass kg C Aboutment dimensions rs min 1) grease oil (approx.) max max a ras NK43/2 NK43/3 NK/2 NK/3 NK47/2 NK47/3 NK5/ NK5/ NK/ NK/ NK6/ NK6/ NK65/ NK65/ NK6/ NK6/ NK7/ NK7/ NK73/ NK73/ NK75/ NK75/ NK/ NK/ NK5/ NK5/ NK9/ NK9/ a ra r C Fw Type NK..R ( Fw ) Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension. r NEELE ROLLER BEARINGS +,5 +,36 +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,5 +,36 +,5 +,36 +,5 +,36,6,6,6,6,6,6,6,6 1,,6,6,6,6,6,6,6 1, 1, 1, 1, 1, 1, ,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6 1, 1, 1, 1, 1, 1,,6,3,92,9,95,2,,1,193,267,,,1 1,1 3, ,,492 1,4,44,5,6,64 Machinedring needle roller bearings without inner ring series NK

83 NEELE ROLLER BEARINGS Machinedring needle roller bearings without inner ring series NK C r ra Fw a Type NK..R ( Fw ) Boundary dimensions Basic load ratings Limiting speeds dynamic static dynamic static N kgf rpm Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. Bearing numbers Aboutment dimensions a ras max max Fw C rs min 1) Cr Cor Cr Cor grease oil (approx.) +,5 95 +,36 +,5 95 +,36 +,5 1 +,36 +,5 1 +,36 +,5 +,36 +,5 +,36 +,5 11 +,36 +,5 11 +,36 +,5 +,36 +,6 +,43 +,6 1 +,43 +,6 1 +,43 +,6 5 +,43 +,6 5 +,43 +,6 5 +,43 +, , 1, 1, 1, 1, 1, 1,1 1,1 1,1 1, NK95/26 NK95/36 NK1/26 NK1/36 NK/26 NK/36 NK11/3 NK11/4 NK/4 NK/4 NK1/ NK1/ NK5/ NK5/ NK5/ NK5/ 11, 11, 1, 1,,, 3,5 3,5 3,5 3,5 2,5 2,5 2, 2, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 64,652,47,679,56,7,6,3,91,9 1, 1,49 1,2 9 1, 1,66 +,43 Mass kg 3

84 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NKI r B r d F Boundary dimensions Basic load ratings dynamic static N Limiting speed rpm Bearing numbers Mass kg d F B rs min 1) Cr Cor oil (approx.) NKI5/TN, NKI5/TN, NKI6/TN, NKI6/TN, NKI7/TN, NKI7/TN, NKI9/, NKI9/, NKI1/, NKI1/2, NKI/, NKI/2, NKI/, NKI/2, NKI/, NKI/2, NKI2/, NKI2/2, NKI/, NKI/2, NKI/2, NKI/3, NKI2/2, NKI2/3, NKI3/2, NKI3/3, NKI/2, NKI/3,1 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 4

85 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NKI r B r d F Boundary dimensions Basic load ratings dynamic static N Limiting speed rpm Bearing numbers Mass kg d B F rs min 1) Cr Cor oil 11. NKI/2 (approx.), NKI/3, NKI3/2, NKI3/3, NKI4/2, NKI4/3, NKI/2, NKI/3, 5 62, NKI/, , NKI/ 2 5 6, NKI5/,27 5 6, NKI5/ 6 72, NKI/, , NKI/ 6 6 2, NKI6/, , NKI6/, , NKI65/, , NKI65/, , NKI7/, , NKI7/, , NKI75/, , NKI75/, , NKI/, , NKI/, , NKI5/26, , NKI5/ , NKI9/26, , NKI9/36 1,1 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 5

86 NEELE ROLLER BEARINGS Machinedring needle roller bearings with inner ring series NKI r B r d F Boundary dimensions Basic load ratings dynamic static N Limiting speed rpm Bearing numbers Mass kg d B 95 F rs min 1) Cr Cor , oil 4.4 NKI95/26 (approx.), , NKI95/36 1, , NKI1/3 1, , NKI1/4 1, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 6

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90 9 9 B Bearing numbers Thrust needle roller bearings series AXK, AS, WS, GS Boundary dimensions Eb c c1 w Ea S d w,1 p e c1 E11 c C p1 E S 2),5 d d1,2,5 1 rs min 1) thrust needle roller and cage assembly (consistant with cylindrical) Washer Inner ring Outer ring AXK11 AXK111 AXK1 AXK1 AXK1 AXK1 AXK1 AXK1 AXK11 AXK119 AXK111 AXK1111 AXK11 AXK11 AXK11 AXK11 AXK11 AXK11 AXK111 AXK1 AXK12 AXK AXK AXK1 AXK1 AXK11 WS11 WS111 WS1 WS1 WS1 WS1 WS1 WS1 WS11 WS119 WS111 WS1111 WS11 WS11 WS11 WS11 WS11 WS11 WS111 WS1 WS12 WS WS WS1 WS1 AS11 AS11 AS111 AS1 AS1 AS1 AS1 AS1 AS1 AS11 AS119 AS111 AS1111 AS11 AS11 AS11 AS11 AS11 AS11 AS111 AS1 AS12 AS AS AS1 AS1 AS11 GS11 GS111 GS1 GS1 GS1 GS1 GS1 GS1 GS11 GS119 GS111 GS1111 GS11 GS11 GS11 GS11 GS11 GS11 GS111 GS1 GS12 GS GS GS1 GS1 GS11 Type AXK Type AS Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension 2) Measured axial load is more than 2kgf. r. NEELE ROLLER BEARINGS 2,75 2,75 2,75 2,75 2,75 3, 3, 3,5 3,5 4, 4, 5, 4,75 5, 5, 5,75 5,75 5,75 6,5 7, 7, 7, 9, 9,5 9,5 9,5,9,6,6,6,6,6,6,6,75,75,75,75,75,75,75,75,75,75,75,9,9,9,9,9,9,9,6,6,6,6,6,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,,2,5

91 91 91 B rs 1 B rs d Basic load ratings dynamic static dynamic static Ca Coa Ca Coa N kgf Limiting speeds rpm grease oil Reference dimensions Eb Ea Mass (approx.) kg AXK11 WS11 GS11 AS Type WS Type GS Thrust needle roller bearings series AXK, AS, WS, GS NEELE ROLLER BEARINGS ,2,3,,4,5,7,,1,,,2,3,39,4,6,61,63,66,6,1,2,1,,219,2,6,3,33,,3,51,7,,91,3,6,,19,3,239,4,27,,31,3,,549,592,74,79,4,9,,9,1,11,,21,,33,44,,6,95,11,1,4,5,3,5, 5 5,4,663,749,796,

92 92 92 Limiting speed n1grease min 1 Thrust needle roller bearings series LS Boundary dimensions Roll path size Eb Ea Bearing numbers LS619 LS21 LS4 LS26 LS2 LS3 LS2 LS LS347 LS52 LS46 LS65 LS57 LS7 LS65 LS69 LS795 LS751 LS LS511 LS9 LS11 LS111 d B a min. B d a Basic load ratings Cr Cor N dynamic static NEELE ROLLER BEARINGS ,75 2,75 2,75 2,75 2,75 2,75 2,75 3, 3, 3,5 3,5 4, 4, 5, 4,75 5, 5, 5,75 5,75 5,75 6,5 7, 7,,6,6,6,6,6,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1,

93 NEELE ROLLER BEARINGS Thrust needle roller bearings series K11 w c c1 Eb Ea Boundary dimensions Reference Basic load ratings dimensions dynamic static dynamic static N kgf c1 1) c w E11,,1 Eb Ea Cr Cor Cr Cor ,5 3,5 3,5 3,5 4,5 5, 5, 5, 6, 6, 6, 6, 7,5 7,5 7,5 7,5 7,5 7,5 9, Notes: 1) The dimensional tolerance for a bearing with a T2 suffix is E. Limiting speeds grease rpm oil Bearing numbers thrust needle roller and cage assembly Inner ring K11 K111 K1 K1 K1 K1 K1 K1 K11 K119 K111 K1111 K11 K11 K11 K11 K11 K11 K111 Outer ring WS11 GS11 WS111 GS111 WS1 GS1 WS1 GS1 WS1 GS1 WS1 GS1 WS1 GS1 WS1 GS1 WS11 GS11 WS119 GS119 WS111 GS111 WS1111 GS1111 WS11 GS11 WS11 GS11 WS11 GS11 WS11 GS11 WS11 GS11 WS11 GS11 WS111 GS111 Mass kg (approx.),,4,6,,,1,2,,,4,,6,3,9,97,1,119,1, 93

94 NEELE ROLLER BEARINGS Thrust needle roller bearings series K w c c1 Eb Ea Boundary dimensions c1 1) E11 c, w,1 Reference dimensions Eb Ea ,5 7,5 9, 9, 9, 11, 11, 11, 11, 11, 11, Notes: 1) The dimensional tolerance for a bearing with a T2 suffix is E. Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Limiting speeds grease rpm oil Bearing numbers Mass kg thrust needle roller and cage assembly Inner ring Outer ring (approx.) K6 WS6 GS6,5 K7 WS7 GS7,65 K WS GS,5 K9 WS9 GS9,1 K1 WS1 GS1, K11 WS11 GS11,19 K WS GS,2 K WS GS,2 K WS GS,2 K WS Gs, K WS WS, 94

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98 NEELE ROLLER BEARINGS Needle roller bearings with thrust ball bearings series NKX, NKX..Z C C1 C2 r r 1 dw Fw 2 a Type NKX (Open type) Type NKX..Z (With cover) 1 +, +, 1 +,4 +, 19 Boundary dimensions, C C1 a Fw dw 1 2 C2, 23,2 9 6,5 19,7 rs min 1) Basic load ratings dynamic static dynamic static N kgf Radial Cr Cor Cr Cor Bearing numbers NKX1T2 NKX1T2Z ,27 +, +,27 +, +,27 +, +,33 +,2 +,33 +,2 +,33 +,2 +,41 +, +,41 +, +,41 +, +,41 +, +,49 +,3 +,49 +, ,5 +, +,5 +, +,5 +, +,61 +,4 +,61 +,4 +,61 +,4 +,75 +,5 +,75 +,5 +,75 +,5 +,75 +,5 +,9 +,6 +,9 +, , 29, 31, 36, 43, 4, 53, 61, 66,5 7 6,5 96, ,5 6,5, 9,5 9,5 9, 1, 9, 1,, 11, 21,7 23,7,7 3,7 37,7,7 47,7,7 6,5 65,5,5 9,5,6,6,6,6,6,6 1, 1, NKXT2 NKXT2 NKXT2 NKX2T2 NKXT2 NKX3T2 NKXT2 NKX4 NKX NKX5 NKX6 NKX7 NKXT2Z NKXT2Z NKXT2Z NKX2T2Z NKXT2Z NKX3T2Z NKXT2Z NKX4Z NKXZ NKX5Z NKX6Z NKX7Z Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r, 9

99 NEELE ROLLER BEARINGS Needle roller bearings with thrust ball bearings series NKX, NKX..Z ra da Basic load ratings dynamic static dynamic static N kgf Axial Ca Coa Ca Coa Abutment dimensions da min 1 ras max Limiting speeds rpm grease oil Bearing numbers NKX1T2 NKX1T2Z Type NKX,37 Mass kg (approx.) Type NKX,,Z, NKXT2 NKXT2Z,, NKXT2 NKXT2Z,44, NKXT2 NKXT2Z,51, NKX2T2 NKX2T2Z,5, , NKXT2 NKXT2Z,1, , NKX3T2 NKX3T2Z,, , NKXT2 NKXT2Z,7, , NKX4 NKX4Z,2, , NKX NKXZ,2, , NKX5 NKX5Z , NKX6 NKX6Z,465, , NKX7 NKX7Z,6,6 99

100 NEELE ROLLER BEARINGS Needle roller bearings with thrust cylindrical roller bearings series NKXR, NKXR..Z C C1 C2 r r 1 a dw Fw 2 a +,27 +, +,5 +, Boundary dimensions 2 29, C C1 a Fw dw 1 2 C2, 23,2 9 6,5 23,7 rs min 1) Basic load ratings dynamic static dynamic static N kgf Radial Cr Cor Cr Cor Bearing numbers NKXRT2 NKXRT2Z ,27 +, +,33 +,2 +,33 +,2 +,33 +,2 +,41 +, +,41 +, +,41 +, +,41 +, ,5 +, +,61 +,4 +,61 +,4 +,61 +,4 +,75 +,5 +,75 +,5 +,75 +,5 +,75 +, , 36, 43, 4, 53, 61, 66, , 9,5 9,5 9, 1, 9, 1,,7 3,7 37,7,7 47,7,7 6,5 65,5,6,6,6,6,6, NKXRT2 NKXR2T2 NKXRT2 NKXR3T2 NKXRT2 NKXR4T2 NKXRT2 NKXR5T2 NKXRT2Z NKXR2T2Z NKXRT2Z NKXR3T2Z NKXRT2Z NKXR4T2Z NKXRT2Z NKXR5T2Z Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. 1

101 NEELE ROLLER BEARINGS Needle roller bearings with thrust cylindrical roller bearings series NKXR, NKXR..Z ra da Basic load ratings dynamic static dynamic static N kgf Axial Ca Coa Ca Coa Abutment dimensions da min ras max Limiting speeds rpm grease oil Bearing numbers NKXRT2 NKXRT2Z Type NKXR,4 Mass kg (approx.) Type NKXR,,Z, NKXRT2 NKXRT2Z,5, NKXR2T2 NKXR2T2Z,9, , NKXRT2 NKXRT2Z,, , NKXR3T2 NKXR3T2Z,2, , NKXRT2 NKXRT2Z,, , NKXR4T2 NKXR4T2Z,6, , NKXRT2 NKXRT2Z,267, , NKXR5T2 NKXR5T2Z

102 NEELE ROLLER BEARINGS Needle roller bearings with angular contact ball bearings series NKIA 59 r C r F d Boundary dimensions Basic load ratings dynamic static dynamic static dynamic static dynamic static N kgf N kgf Radial Axiall d C F rs min 1) Cr Cor Cr Cor Ca Coa Ca Coa ,6,6,6,6 1, 1, 1, 1, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. Bearing numbers NKIA592 NKIA593 NKIA594 NKIA59/ NKIA595 NKIA596 NKIA597 NKIA59 NKIA599 NKIA591 NKIA5911 NKIA59 NKIA59 NKIA59

103 Limiting speeds rpm grease oil Abutment dimensions Mass (approx.) kg,5,56,111,,,7,3 47,41,41,59,6,7 Bearing numbers NKIA592 NKIA593 NKIA594 NKIA59/ NKIA595 NKIA596 NKIA597 NKIA59 NKIA599 NKIA591 NKIA5911 NKIA59 NKIA59 NKIA59 da min,5 19,5,5,5 27,5,5 4,, 5,, 61, 66, 71, 76, a max,, 2, 31, 33, 3,, 51, 5, 63, 66,5 7 7,5 4, max,5 27,5 34,5 36,5 39,5 44,5 5, 57, 63, 67, 74, 79, 4, 94, ras max,6,6,6,6 1, 1, 1, 1, b a ra b da NEELE ROLLER BEARINGS Needle roller bearings with angular contact ball bearings series NKIA 59

104 TECHNICAL INFORMATION Needle roller bearings with threepoint contact ball bearings series NKIB 59 B C r r F d Boundary dimensions d B C F rs min 1) ,6,6,6,6 1, 1, 1, 1, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. Basic load ratings dynamic static dynamic static dynamic static dynamic static N kgf N kgf Radial Axiall Cr Cor Cr Cor Ca Coa Ca Coa

105 TECHNICAL INFORMATION Needle roller bearings with threepoint contact ball bearings series NKIB 59 ra a da da a Limiting speeds Abutment dimensions Bearing numbers Mass rpm kg grease. oil 2. da min,5 a max,5 ras max NKIB592R (approx.), ,5 27,5 NKIB593R,5 11..,5 34,5 NKIB594R, 9.5.,5 36,5 NKIB59/R, ,5 39,5 NKIB595R, ,5 44,5 NKIB596R, , 5,,6 NKIB597R, , 57,,6 NKIB59R , 63,,6 NKIB599R , 67,,6 NKIB591R , 74, 1, NKIB5911R, , 79, 1, NKIB59R, , 4, 1, NKIB59R, , 94, 1, NKIB59R,95

106 SINCE 1972 NEELE ROLLER BEARINGS Using applications Expand all sectors Power transmission and electrical engineering Construction, building materials and mining machinery, offshore engineering, civil engineering Precision engineering and medical equipment Conveying trucks, conveying and warehousing equipment Rubber and plastics processing machinery, machinery for the chemical industry Hydraulic and pneumatic engineering Agricultural machinery Assembly, handling and industrial robots Passenger and estate cars, automotive supplier industry Power tools Rail vehicles Toys, pedal cycles and sports equipment Iron and steel industry Internal combustion engines for gardening and forestry equipment, outboard motors Machine tools and production systems Electrical household appliances

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112 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NATR B C R=5 d Fw e,5 B,1 Boundary dimensions C 11 d 5 e Fw, Basic load ratings dynamic static dynamic static N kgf Cr 3.5 Cor 3.95 Cr 395 Cor 4 Bearing numbers NATR5 NATR5 2RS 19, , NATR6 NATR6 2RS,1 19, NATR NATR 2RS 3,1 1 23, NATR1 NATR1 2RS,1, NATR NATR 2RS 19, , NATR NATR 2RS 4 21,21 2, NATR NATR 2RS 47, , NATR2 NATR2 2RS 52,21 3, NATR NATR 2RS 62 29, , NATR3 NATR3 2RS 72 29, , NATR NATR 2RS, , NATR4 NATR4 2RS 5, 3 71, NATR NATR 2RS 9, , NATR5 NATR5 2RS 1

113 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NATR B C R=5 d Fw e Load ratings of truck Limiting speeds Bearing numbers Mass Spherical outer ring N Cylindrical outer ring Spherical outer ring kgf Cylindrical outer ring rpm grease oil kg (approx.) NATR5 NATR5 2RS, NATR6 NATR6 2RS, NATR NATR 2RS, NATR1 NATR1 2RS, NATR NATR 2RS, NATR NATR 2RS, NATR NATR 2RS, NATR2 NATR2 2RS, NATR NATR 2RS, NATR3 NATR3 2RS, NATR NATR 2RS, NATR4 NATR4 2RS, NATR NATR 2RS, NATR5 NATR5 2RS,96 Notes: Limiting speed of sealed type bearings marked with is approximately 1 rpm. 1

114 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NATV B C R=5 d Fw e Type NATV (Full complement type),5 B,1 Boundary dimensions C 11 d 5 e Fw, Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Bearing numbers NATV5 NATV5 2RS 19, , NATV6 NATV6 2RS,1 19, NATV NATV 2RS 3,1 1 23, NATV1 NATV1 2RS,1, NATV NATV 2RS 19, , NATV NATV 2RS 4 21,21 2, NATV NATV 2RS 47, , NATV2 NATV2 2RS 52,21 3, NATV NATV 2RS 62 29, , NATV3 NATV3 2RS 72 29, , NATV NATV 2RS, , NATV4 NATV4 2RS 9, , NATV5 NATV5 2RS 1

115 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NATV B C R=5 d Fw e Type NATV (Full complement type) Load ratings of truck Limiting speeds Bearing numbers Mass Spherical outer ring N Cylindrical outer ring Spherical outer ring kgf Cylindrical outer ring rpm grease oil kg (approx.) NATV5 NATV52RS, NATV6 NATV62RS, NATV NATV2RS, NATV1 NATVRS, NATV NATV2RS, NATV NATV2RS, NATV NATV2RS, NATV2 NATVRS, NATV NATV2RS, NATV3 NATVRS, NATV NATV2RS, NATV4 NATVRS, NATV5 NATV52RS,99 Notes: Limiting speed of sealed type bearings marked with is approximately 1 rpm. 1

116 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NUTR B C R=5 d Fw e,5 B,21 Boundary dimensions C , 4 21,21 19, ,21 47,21 52,21 52,21 62, , , ,21 29,21, 5, 9, 9, 1, 11, , 2,5,5 3, 3,,, ,5 52,5 47,5 57, 52,5 57,,6,6,6,6,6,6,6,6 Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. d e Fw rs min 1) Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Bearing numbers NUTR NUTR23 NUTR NUTR33 NUTR NUTR34 NUTR NUTR NUTR26 NUTR36 NUTR27 NUTR37 NUTR2 NUTR29 NUTR3 NUTR21 NUTR39 NUTR31 1

117 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers series NUTR B C R=5 d Fw e Load ratings of truck Limiting speeds Bearing numbers Mass Spherical outer ring 3.2 N Cylindrical outer ring 11.9 Spherical outer ring 3 kgf Cylindrical outer ring 1. rpm grease 5.5 NUTR kg (approx.), NUTR23, NUTR, NUTR33, NUTR, NUTR NUTR, NUTR, NUTR26, NUTR36, NUTR27, NUTR37, NUTR2, NUTR29, NUTR3 1, NUTR21, NUTR39 1, NUTR31 1,69 1

118 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers sealed type series NA..2RS, RNA..2RS B C C r r e R=5 d F e R=5 d F Type NA..2RS (With inner ring) Type RNA..2RS (Without inner ring) Boundary dimensions Basic load ratings dynamic static dynamic static N kgf B C d Fw e F rs min 1),5 Cr Cor Cr Cor +, 19 11, 6 1 +, ,27 11, +, ,27 3, 1 +, ,27, +, ,33, 2 +, ,33 4, +, , , 2 +, , , 3 +, , , 3 +, , ,7 +, 5, ,41 23, , 57 4, , ,7 52 +, , , , ,3 6 5, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. Bearing numbers NA/6 2RS RNA/6 2RS NA/ 2RS RNA/ 2RS NA 2RS RNA 2RS NA1 2RS RNA1 2RS NA2 2RS RNA2 2RS NA3 2RS RNA3 2RS NA4 2RS RNA4 2RS NA2 2RS RNA2 2RS NA6 2RS RNA6 2RS NA7 2RS RNA7 2RS NA 2RS RNA 2RS NA9 2RS RNA9 2RS NA1 2RS RNA1 2RS 11

119 NEELE ROLLER BEARINGS Roller followers yoke type truck rollers sealed type series NA..2RS, RNA..2RS B C C r r e R=5 d F e R=5 d F Type NA..2RS (With inner ring) Type RNA..2RS (Without inner ring) Spherical outer ring 1.3 N Load ratings of truck Cylindrical outer ring 4.4 Spherical outer ring 1 Kgf Cylindrical outer ring 4 Limiting speeds rpm grease 1. Bearing numbers NA/6LL RNA/6LL Type NA..2RS,23 Mass kg (approx.) Type RNA..2RS, NA/LL RNA/LL,, NALL RNALL,6, NA1LL RNA1LL,67, NA2LL RNA2LL,75, NA3LL RNA3LL,1, NA4LL RNA4LL,6, NA2LL RNA2LL,29, NA6LL RNA6LL, NA7LL RNA7LL,56, NALL RNALL,623, NA9LL RNA9LL,63, NA1LL RNA1LL,62,

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124 4 4 Cam followers stud type truck rollers series KR Bearing numbers KR1 KR Kr KR KR19 KR KR26 KR3 KR KR KR4 KR47 KR52 KR62 KR72 KR KR5 KR9 Boundary dimensions, C Fw 4, 4, 5,75, 1,,,,, 1,,,, 3, 3, 3, 3, 3, B B2 9, 11,,, 2, 23, 23,,,,5 36,5 4,5 4,5 49,5 49,5 63, 63, 63, G M3X,5 M4X,7 M5X, M6X1 MX1, M1X1, M1X1, MX1, MX1, MX M1X M2X M2X MX MX M3X M3X M3X G1 5, 6, 7,5, 1,,,,,, 19, 21, 21,,,,,, C1,5,5,5,6,6,6,6,6,6,,,,,, 1, 1, 1, e 7,,5 9,5,,,, 23, 23, 27,, 37, 37, 44, 44, 53, 53, 53, h 2,5 2, ) 3) 3) n ) 2) d ,1,,,,,,,1,1,1,1,21,21,21,21,21,21,21 B a e d1 a n G G1 B2 C1 B1 B3 C n Fw R=5 h NEELE ROLLER BEARINGS

125 NEELE ROLLER BEARINGS Cam followers stud type truck rollers series KR C B3 a h Fw n R=5 d1 e G1 n G C1 B2 B1 Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Spherical outer ring Notes: Limiting speed of sealed type bearings marked with Load ratings of truck N Cylindrical outer ring Spherical outer ring kgf is approximately 1 rpm. Limiting speeds rpm Cylindrical outer ring grease oil Maximum tightening torque N.m,5 1, 2, 3,,,,,, 5, 7,,,,,,,, Kgf.m,5,1,2, 2,2 2,2 5,,7,,,,,,, Bearing numbers KR1 KR KR KR KR19 KR KR26 KR3 KR KR KR4 KR47 KR52 KR62 KR72 KR KR5 KR9 Mass kg (approx.),5,,1,19,31,46,59,7,97,9, 6,461,79 1,4 5 1,74 1,95 Stud diameter

126 Cam followers stud type truck rollers series KRV Bearing numbers KRV1 KRV KRV KRV KRV19 KRV KRV26 KRV3 KRV KRV KRV4 KRV47 KRV52 KRV62 KRV72 KRV KRV9 Boundary dimensions Fw d1 B1 B2 C1 n a,5 C h e G1 G , 4, 5,75, 1,,,,, 1,,,, 3, 3, 3, 3, , 11,,, 2, 23, 23,,,,5 36,5 4,5 4,5 49,5 49,5 63, 63, M3X,5 M4X,7 M5X, M6X1 MX1, M1X1, M1X1, MX MX MX M1X M2X M2X MX MX M3X M3X 5, 6, 7,5, 1,,,,,, 19, 21, 21,,,,,,5,5,5,6,6,6,6,6,6,,,,,, 1, 1, 7,,5 9,5,,,, 23, 23, 27,, 37, 37, 44, 44, 53, 53, 2,5 2,5 3, 3, 4, 4, 4, 6, 6, 6, 6,,,,,,, 3) 3) 3) ) 2) B ,1,,,,,,,1,1,1,1,21,21,21,21,21, e d1 a n G G1 B2 C1 B1 B3 C n Fw R=5 h NEELE ROLLER BEARINGS 6 6

127 NEELE ROLLER BEARINGS Cam followers stud type truck rollers series KRV C B3 a h Fw n R=5 d1 e G1 n G C1 B2 B1 Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Spherical outer ring Load ratings of truck 56 N Cylindrical outer ring 1.36 Spherical outer ring 57 kgf Cylindrical outer ring 9 Limiting speeds Maximum tightening rpm torque N.m Kgf.m grease oil..,5,5 Bearing numbers KRV1 Mass kg (approx.),5 Stud diameter ,,1 KRV, ,,2 KRV, , KRV, ,, KRV19, , KRV, , KRV26, , 2,2 KRV3, , 2,2 KRV, , 5, KRV, ,,7 KRV4, ,, KRV ,, KRV52, ,, KRV62, ,, KRV ,, KRV ,, KRV9 1,97 3 Notes: Limiting speed of sealed type bearings marked with is approximately 1 rpm. 7

128 NEELE ROLLER BEARINGS Cam followers stud type truck rollers (Multirow cylindrical roller bearings) series NUKR C B3 a h Fw n R=5 d1 e G1 n G C1 B2 Type NUKR( <1 ) B1 ouble row type full ( complement with seal) Boundary dimensions d1 Fw B1 B2 G G1 B3,5 C 1,1 19, 52,5 MX C1 n m a, 6 3 e 21 h 6 Bearing numbers NUKR 4 2 1, ,5 M1X 19, NUKR4 47 2,21,5 66 4,5 M2X 21, NUKR ,21 3, 66 4,5 M2X 21, NUKR ,21, 49,5 MX, NUKR , ,5 MX, NUKR72 3,21 47,5 1 63, M3X 1, 4 51 NUKR 9 3,21 47,5 1 63, M3X 1, 4 51 NUKR9

129 NEELE ROLLER BEARINGS Cam followers stud type truck rollers (Multirow cylindrical roller bearings) series NUKR C B3 a h Fw n R=5 d1 e G1 n G C1 B2 Type NUKR( <1 ) B1 ouble row type full ( complement with seal) Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Spherical outer ring Load ratings of truck N Cylindrical outer ring Spherical outer ring kgf Cylindrical outer ring Limiting speeds rpm grease Maximum tightening torque N,m Kgf,m 5 7 5,,7,,,,,, Bearing numbers NUKR NUKR4 NUKR47 NUKR52 NUKR62 NUKR72 NUKR NUKR9 Mass kg (approx.),5,2,,795 1,1 4 1,96 Stud diameter

130

131

132

133 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass d F 1) 7,6,6,6,6 9,6 9,6 1,6 1,6 1,6 9,6 1,6 1,6 1,6, 1,6,,,,,,,,,,,,, B 1,,, 1,,, 1,,, 1,,,, 11, 1,,,5, 11,,,,,5,,, rs min 2),,,, t IR5X7X1 IR5XX IR5XX IR6XX1 IR6X9X IR6X9X IR6X1X1 IR6X1X IR6X1X IR7X9X1 IR7X1X IR7X1X IR7X1X IR7XX IRX1X11 IRXX1 IRXX IRX 2X IRXX,5 IRXX IR9XX11 IR9XX IR9XX IR9XX IR1XX,5 IR1XX IR1XX IR1XX Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. 3 da min 6,2 7, 7, 7,2,,,,,,2 9, 9, 9, 9, 9,2 1, 1, 1, 1, 1, 11, 11, 11, 11,,,,, ras max,,,, kg (approx.),,2,3,,,43,37,46,5,19,31,36,49,93,,4,5,57,59,,41,,61,,52,73,74,

134 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max,,,,,,,,,,,,,, 2,,5 2,5,,,5,,5,5,,, 1, 1, 1, 1, 1, 1, 1, IR1XX IR1XX2 IR1XX,5 IR1XX2,5 IR1XX IRXX IRXX,5 IRXX IRXX,5 IRXX,5 IRXX IRXX IRXX ,,, 2,,,, 2,5,,5,,,,,,5,,,,5,,5, 2,5,,5,9,,9 2, IRXX IRXX2 IRXX IRXX2,5 IRXX,5 IRX1X IRXX IRX1X,5 IRX1X IRX1X,5 IRX1X,5 IRX1X2,5 IRX1X,5 IRX19X IRX19X2 d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. 4 kg (approx.),92,,,,,5,61,7,,11,79,7,95,11,,,19,,1,95,72,93,96,1,,,,

135 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max d B min,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,,, 1, 2,5 23, 26, 3,5 2,,,5 2, 2,5 3,5, 2,,,, 1, 2,5 23, 26,, 2,, 2, 2,5,6,6 1, IRX2X IRX2X IRX2X IRX2X1 IRX2X2,5 IRX2X23 IRX2X26 IRX2X3,5 IRXX2 IRX2X IRX2X,5 IRX2X2 IRX2X2,5 IRX2X3,5 IRX21X IRX21X2 IRXX IRXX IRXX IRXX1 IRXX2,5 IRXX23 IRXX26 IRXX IRXX2 IR2XX IR2XX2 IR2XX2,5 Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r ,6,6 kg (approx.),,,,19,21,,27,,,11,11,,,21,,1,,,19,21,,27,3,36,34,,21,3

136 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max d B min,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,9,5,,5, 1, 2, 2,5 23, 26, 26,5 3,, 3,5 2,, 2,, 2, 2,5 23, 3, 2, 3,,5,,5, 1,,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, IR2XX,5 IR2XX IR2XX,5 IR2XX IR2XX1 IR2XX2 IR2XX2,5 IR2XX23 IR2XX26 IR2XX26,5 IR2XX3 IR2XX IR2XX3,5 IR2X2X2 IRX26X IRX26X2 IRX2X IRX2X2 IRX2X2,5 IRX2X23 IRX2X3 IRX29X2 IRX29X3 IRX3X,5 IRX3X IRX3X,5 IRX3X IRX3X1 Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring, 2) These values are the allowable minimum dimensions of the chamfer dimension r ,6 kg (approx.),,21,,,,27,2,31,34,36,41,41,53,,,,3,,36,,54,26,39,2,,26,27,3

137 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max d B min,9,9,9,9,9,9,9,9 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 +,,2 2, 2,5 23, 26, 26,5 3,, 3,5, 3,5, 2, 23, 3,,,5,,,5, 1, 2, 2,5 23, 26, 3,, 1,,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,3 1, 1, 1, 1, 1, 1, 1, IRX3X2 IRX3X2,5 IRX3X23 IRX3X26 IRX3X26,5 IRX3X3 IRX3X IRX3X3,5 IRXX IRXX3,5 IR2XX IR2XX2 IR2XX23 IR2XX3 IR29XX IR3XX,5 IR3XX IR3XX IR3XX,5 IR3XX IR3XX1 IR3XX2 IR3XX2,5 IR3XX23 IR3XX26 IR3XX3 IR3XX IR3X37X1 Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r ,6,6 kg (approx.),33,34,3,41,43,5,54,64,52,72,,2,34,44,,,,31,,,,3,39,44,5,59,63,5

138 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max d B min +,,2 +,,2,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11, 2, 2, 3,, 2, 27, 36,,,5,5, 2, 2,5 3, 34, 4, 2, 21, 23, 27, 36,, 2, 3,,5, 2,,6,6,6,6,6,6,6,6,6,6,6 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 2, 2, 2, 1, 2, 2, 2, IR3X37X IR3X3X2 IRX37X2 IRX37X3 IRX3X IRX4X2 IRX4X27 IRX4X36 IR33X37X IRX4X,5 IRX4X,5 IRX4X IRX4X2 IRX4X2,5 IRX4X3 IRX4X34 IRX4X4 IRXX2 IRXX21 IRXX23 IRXX27 IRXX36 IRX43X IR3X43X2 IR3X43X3 IR4XX,5 IR4XX IR4XX2 Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r ,6,6,6,6,6,6,6,6,6,6,6 kg (approx.),61,65,4,63,2,6,92,4,,27,37,3,44,46,6,79,91,64,6,74,,1,1,4,74,,43,51

139 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max d B min,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11,11 +,,4 +,,4 +,,4 +,,4 +,,4 +,,4 +,,4 +,,4 +,,4 2,5 26,5 3, 34, 4,, 23, 3, 4, 2,, 2, 3, 2,,,5,, 4,, 23, 3, 4, 2,, 4, 2,,,6,6,6,6 1,,6,6,6,6,6,6,6,6 1,,6,6,6 2, 2, 2, 2, 2, 2, 2,, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, IR4XX2,5 IR4XX26,5 IR4XX3 IR4XX34 IR4XX4 IR4X4X IR4X4X23 IR4X4X3 IR4X4X4 IR4X4X2 IR4X5X IRX47X2 IRX47X3 IRX5X2 IRX5X IRX5X,5 IRX5X IRX5X IRX5X4 IRX52X IRX52X23 IRX52X3 IRX52X4 IRXX2 IRXX IRXX4 IR5XX2 IR5XX Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r ,6,6,6,6 1,,6,6,6,6,6,6,6,6 1,,6,6,6 kg (approx.),53,6,77,,,92,97,3,,,11,53,,57,71,74,92,11,1,,93,3,4,1,,3,63,7 7

140 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max +,,4,6 2, IR5XX 54,,6 +,,4 4,6 2, IR5XX4 54,,6 +, 5,4,6 2, IR5X5X 54,,6 +, 5,4 23,6 IR5X5X23 54,,6 +, 5,4 3,6 2, IR5X5X3 54,,6 +, 5,4 4,6 2, IR5X5X4 54,,6 +, 6,4 2 1, 2, IR5X6X2, 1, +, 6,4 1, 2, IR5X6X, 1, +, 6,4 2 1,1 2, IR5X6X2 56,5 1, +, 6,4 4 1, 2, IR5X6X4, 1, 6,,6 2,2 IRX6X 59,,6 6,,6 2, IRX6X 59,,6 63, 1, 2, IRX63X 6, 1, 63, 34 1, 2,2 IRX63X34 6, 1, 63, 1, 2,2 IRX63X 6, 1, 65, 2 1,1 2,2 IRX65X2 6 1, 65, 3 1, 2,2 IRX65X3 6, 1, 65, 6 1, IRX65X6 6, 1, 6, 1, 2,2 IR6X6X 65, 1, 6, 34 1, 2,2 IR6X6X34 65, 1, 6,,6 2,2 IR6X6X 64,,6 6, 1, 2,2 IR6X6X 65, 1, 7, 1, 2,2 IR6X7X 65, 1, 7, 2 1,1 2,2 IR6X7X2 66,5 1, 7, 3 1, 2,2 IR6X7X3 65, 1, 7, 6 1, 2,2 IR6X7X6 65, 1, 72, 1, 2,2 IR65X72X 7, 1, 72, 34 1, 2,2 IR65X72X34 7, 1, d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. kg (approx.),1,,1,119,9,29,9,3,,262,6,1,1,192,6,26,,44,2,26,2,27,195,2,2,463,2,193

141 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max 72, 1, 2,2 IR65X72X 7, 1, 73,,6 2,2 IR65X73X 69,,6 73,,6 2,2 IR65X73X 69,,6 75, 2 1,1 2,2 IR65X75X2 7 1, 75, 3 1, 2,2 IR65X75X3 7, 1, 75, 6 1, 2,2 IR65X75X6 7, 1,, 1, 2,2 IR7XX 75, 1,, 2 1,1 2,2 IR7XX2 76,5 1,, 3 1, 2,2 IR7XX3 75, 1,, 1, 2,2 IR7XX 75, 1,, 4 1, 2,2 IR7XX4 75, 1,, 54 1, 2,2 IR7XX54 75, 1,, 56 1, 2,2 IR7XX56 75, 1,, 6 1, 2,2 IR7XX6 75, 1, 5, 1, 2,2 IR75X5X, 1, 5, 3 1, 2,2 IR75X5X3, 1, 5, 1, 2,2 IR75X5X, 1, 5, 4 1, 2,2 IR75X5X4, 1, 5, 54 1, 2,2 IR75X5X54, 1, 9, 1,1 2,2 IR75X9X 1, 9, 1, 2,2 IRX9X 5, 1, 9, 3 1, 2,2 IRX9X3 5, 1, 9, 1, 2,2 IRX9X 5, 1, 9, 4 1, 2,2 IRX9X4 5, 1, 9, 54 1, 2,2 IRX9X54 5, 1, 95, 1,1 2,2 IRX95X 6,5 1, 95, 26 1, 2,5 IR5X95X26 9, 1, 95, 3 1, 2,5 IR5X95X3 9, 1, d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. 1 kg (approx.),9,4,2,,6,5,4,,267 5,43,52,54,23, ,5,4,4 4,4,543,51,2 23

142 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max 95, 36 1, 2,5 IR5X95X36 9, 1 1, 1,1 2,5 IR5X1X 9 1 1, 1,1 2,5 IR5X1X 9 1 1, 46 1,1 2,5 IR5X1X , 63 1,1 2,5 IR5X1X , 26 1, 2,5 IR9X1X26 95, 1 1, 3 1, 2,5 IR9X1X3 95, 1 1, 36 1, 2,5 IR9X1X36 95, 1, 1,1 2,5 IR9XX 96,5 1, 1,1 2,5 IR9XX 96,5 1, 46 1,1 2,5 IR9XX46 96,5 1, 63 1,1 2,5 IR9XX63 96,5 1, 26 1, 2,5 IR95XX26 1, 1, 36 1, 2,5 IR95XX36 1, 1 11, 1,1 2,5 IR95X11X , 1,1 2,5 IR95X11X , 46 1,1 2,5 IR95X11X , 63 1,1 2,5 IR95X11X , 3 1,1 2,5 IR1X11X3,5 1 11, 4 1,1 2,5 IR1X11X4,5 1 1, 1,1 2,5 IR1X1X,5 1 1, 4 1,1 2,5 IR1X1X4,5 1 1, 54 1,1 2,5 IR1X1X54,5 1, 3 1, 2,5 IR11XX3 1, 1, 4 1,1 2,5 IR11XX4 1 1,1 4 1,1 2,5 IR11X1X4 1 1,1 54 1,1 2,5 IR11X1X54 1,1 3 1, 2,2 IRXX3 1, 1 d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. 2 kg (approx.) 9,53,5,76,294 4,46,56,61, 1,11,43,59,64,5 1, 75,,62,775 1,9,44,5,4 1,,44

143 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max,1 4 1,1 2,5 IRXX4 6,5 1, 1,1 4 2, 2,5 IRX1X4 9, 2, 1,1 1,1 2,5 IRX1X 6,5 1, 1,1 6 1,1 2,5 IRX1X6 6,5 1, 1,1 3, IRX1X, 1,1 1,1 3, IRX1X 6,5 1, 1,1 3, IRX1X,,1 5 3, IRXX5,,1 52 2, 3, IRXX52 9, 2,,1 67 3, IRXX67, 5,1 3, IRX5X, 5,1 1,1 3, IRX5X 6,5 1, 5,1 3, IRX5X,,1 5 3, IRXX5,,1 52 2, 3, IRXX52 9, 2,,1 67 3, IRXX67,, 5, 3, IRX5X,, 5, 4 1,1 3, IRX5X4 6,5 1,, 5, 3, IRX5X,,, 52 2, 3, IRXX52 9, 2,,, 6 2, 3, IRXX6 9, 2,, 5, 4 1,1 3, IRX5X4 6,5 1,, 1, 6 2, 3, IRX1X6 9, 2,,,43 1,1 3, IRXX 6,5 1,, 19,43 6 2, 3, IRX19X6 9, 2,, 195,43 1,1 3, IR1X195X 16,5 1,,, , 3, IR1XX69 19, 2,,2 21,5 5 3,5 IR19X21X5 19, d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. 3 kg (approx.),59,7,9 1,,7, 1,69 1,75 2,,4,9 1,1 1,7 1,7 2,3,9 1, 1,1 2, 2, 1,2 2,5 1, 2,65 1 4,1 2,41

144 NEELE ROLLER BEARINGS Inner rings series IR r t B ra F d da Boundary dimensions Bearing numbers Abutment dimensions Mass da ras F 1) rs min 2) t max,2 2,5 69 2, 3,5 IR19X2X ,,2,5 5 3,5 IR2XX5 2,2 2,5 2,1 3,5 IR2XX 211 2,,33,63 5 3,5 IRXX5,33 2,63 2,1 3,5 IRX2X 231 2,,37 265,69 6 2, 3,5 IRX265X6 9 2,,37 265,69 2,1 3,5 IRX265X 1 2,,64 25,92 6 2, 4, IR26X25X ,,64 29,92 1 2,1 4, IR26X29X ,,64, , 4, IR2XX ,,64 31,92 1 2,1 4, IR2X31X ,,62 33,9 2,1 4, IR3X33X 311 2,,62 34,9 11 3, 4, IR3X34X11 3 2,5,62,9 2,1 5, IRXX 331 2,,62 36,9 11 3, 5, IRX36X ,5,62 37,9 2,1 5, IR34X37X 1 2,,62 3,9 11 3, 5, IR34X3X11 3 2,5,9 39,6 2,1 5, IR36X39X 371 2,,9 4,6 11 3, 5, IR36X4X ,5, 4, 1 2,1 5, IR3X4X ,, 43, 4, 5, IR3X43X 396 3,,, 4, 5, IR4XX 4 3,, 47,1 4, 5, IRX47X 436 3,, 49,1 4, 5, IR44X49X 6 3, d B min Notes: 1) The tolerance for this dimension provides regular clearance when an inner ring is combined with a needle roller bearing that lacks an inner ring. 2) These values are the allowable minimum dimensions of the chamfer dimension r. kg (approx.) 4,1 2,49 5,1 2,75 5,7 4,6 6,3 4,9 1, 6,2 1, 9,3 9, 2, 1,1, 1,9,, 36,5 3,2 46,5 4

145

146

147 NEELE ROLLER BEARINGS Oneway clutch miniature type series HF C Fw Boundary dimensions Torque capacity Part number by radial load Bearing numbers Mass Md N m kgf m needle roller oil retaining kg Fw C bearing bearing (approx.) 6 1 1,76,1 HK69T2 BS6 HF6,3 3, 2 HK1 BS HF, 1 5,3,54 HK11 BS1 HF1,4 1,2 1, HK BS HF,1 2,3 1,76 HK BS HF, 2,5 2,9 HK BS HF, 1,1 2,46 HK1 BS1 HF1, ,5 2,91 HK2 BS219 HF2, 2 66, 6,73 HK BS11 HF2, , 9,1 HK3 BS319 HF,36 2 1,,3 HK BS7 HF2,4 7

148 NEELE ROLLER BEARINGS rawn cup needle clutch series HFL C r s F w Boundary dimensions Basic load ratings dynamic static N Limiting speed rpm Rotation torque Nm Bearing numbers Fw C 4 Cr 1.27 Cor 1.74 n 34. nl**. 4 HFL ,76 HFL , HFL ,3 HFL ,2 HFL ,3 HFL ,5 HFL ,1 HFL ,5 HFL , HFL , HFL , HFL3

149

150

151

152 Machinedring needle roller bearings, separable series RNAO Boundary dimensions Basic load ratings dynamic static dynamic static N kgf Cr Cor Cr Cor Bearing numbers RNAO5X1X RNAO6XX RNAO7XX RNAOXX1 RNAO1XX1 RNAO1X2X RNAOX19X,5 RNAOXX RNAOXX RNAOX26X RNAOX23X RNAOXX RNAOX2X RNAOXX RNAO1X26X RNAO1X3X RNAO2X2X RNAO2X X RNAOX3X RNAOXX RNAOXX RNAOX37X RNAO26X39X RNAO2X4X RNAO3X4X RNAO3XX RNAOXX RNAOXX , Fw,,, 1, 1,,,5,,,,,,,,,,,,,,,,,,,,, C E +,1 +,1 +,1 +,1 +, +, +, +, +, +, +, +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,27 +, +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,33 +,2 +,41 +, +,41 +, E r Fw C rs min 1) Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension, r NEELE ROLLER BEARINGS 2 2

153 Limiting speeds rpm grease oil Bearing numbers Abutment dimensions,3,6,6,,1,1,,19,1,29,2,21,,,,,,3,27,59,53,6,6,61,6,69,49,53 Mass kg (approx.) 7,7,7 9,7 1,7,7,7,7,6,6 19,6 1,6 19,6 21,6 2,6 21,6 23,6 23,6,6,6 2,4 2,4 31,4 29,4 34,4 34,4 36,4 36,4 39,4, 11,,,, 1,, 2, 2,, 21,, 26, 23,, 2, 26, 3, 2, 33, 33,, 37, 3, 3, 4, 4, 43, 5,3 6,3 7,3,3 1 1,3,3,4,4,4,4,4,4 1,4 1,4 2,4 2,4,4,4,6,6 26,6 2,6 3,6 3,6,6,6, b min max a db min max ra b ra db a ra RNAO5X1X RNAO6XX RNAO7XX RNAOXX1 RNAO1XX1 RNAO1X2X RNAOX19X,5 RNAOXX RNAOXX RNAOX26X RNAOX23X RNAOXX RNAOX2X RNAOXX RNAO1X26X RNAO1X3X RNAO2X2X RNAO2X X RNAOX3X RNAOXX RNAOXX RNAOX37X RNAO26X39X RNAO2X4X RNAO3X4X RNAO3XX RNAOXX RNAOXX Machinedring needle roller bearings, separable series RNAO NEELE ROLLER BEARINGS 3 3

154 NEELE ROLLER BEARINGS Machinedring needle roller bearings, separable series RNAO C r E Fw Boundary dimensions Basic load ratings dynamic static dynamic static N kgf Bearing numbers Fw C E +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,41 +, +,49 +,6 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,49 +,3 +,5 +,36 +,5 +,36 +,5 +,36 +,5 +,36 +,5 +,36 +,5 +, rs min 1) Cr Cor Cr Cor , , , , , , , , , , , , , , , Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r, RNAOXX RNAOX47X RNAOX47X1 RNAO37X47X RNAO37X52X1 RNAO4X5X RNAO4XX2 RNAOXX RNAOX62X2 RNAO5X62X2 RNAO5X65X2 RNAOX6X2 RNAOX6X RNAOX72X2 RNAO6X7X2 RNAO65X5X3 RNAO7X9X3 RNAO75X95X3 RNAOX95X3 RNAOX1X3 RNAO5XX RNAO5XX3 RNAO9XX26 RNAO9X11X3 RNAO95X1X3 RNAO1XX3 4

155 ,69,7,9,56,1,74,1,3,5,,,6,2,2,5,464,199,52,,5,9, 73,61,64, ,6,6,6 37,6 37,6 4,6 4,6,6,6 5,6 5,6,,, 6, 66, 71, 76, 1, 1, 6, 6, 91, 91, 96, 11,,6,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, RNAOXX RNAOX47X RNAOX47X1 RNAO37X47X RNAO37X52X1 RNAO4X5X RNAO4XX2 RNAOXX RNAOX62X2 RNAO5X62X2 RNAO5X65X2 RNAOX6X2 RNAOX6X RNAOX72X2 RNAO6X7X2 RNAO65X5X3 RNAO7X9X3 RNAO75X95X3 RNAOX95X3 RNAOX1X3 RNAO5XX RNAO5XX3 RNAO9XX26 RNAO9X11X3 RNAO95X1X3 RNAO1XX3 39,4 41,4 41,4 41,4 43,4 44,4 46,2 49,2 52,2 54,2 57,2 59,4 62,4 62,4 67,2 72,2 77,2 2,2 5,2 7,2 92,2 92,2 97,2 97,2,2,2 b ra db a ra 5 5 Machinedring needle roller bearings, separable series RNAO NEELE ROLLER BEARINGS Limiting speeds rpm grease oil Bearing numbers Abutment dimensions Mass kg b min max a db min max ra (approx.)

156 Machinedring needle roller bearings, separable series NAO Basic load ratings Boundary dimensions d dynamic static dynamic static N kgf Bearing numbers Cr Cor Cr Cor NAO6XX1 NAO7X2X NAO9XX NAO1XX NAO1X26X NAOXX NAOX2X NAOX2X NAOXX NAOX3X NAOXX NAO2XX NAO2X37X NAOX4X NAOXX NAO29XX NAO3XX NAO3XX NAO3X47X NAO3X47X1 NAO3X52X1 NAO33X47X NAOX5X NAOXX2 NAO4XX NAO4X62X2 NAO4X65X2 NAOX62X C F E d F C r E r rs min 1) Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension, r NEELE ROLLER BEARINGS 6 6

157 Bearing numbers Abutment dimensions,,,,26,36,3,4,29,5,,7,76,2,,6,62,77,,19,119,7,5,1,19,7,23,279,192,7,7,6,6 19,6 19,6 21,6 23,6,6,6 2,4 2,4 31,4 34,4 36,4 36,4 39,4 39,4 41,4 41,4 43,4 41,4 44,4 46,2 49,2 52,2 57,2 54,2 db max a 1 1,3,4,4,4,4 2,4 2,4,4,4,6,6 3,6 3,6,6,6,6,6,6 37,6 37,6 4,6 4,6,6,6 5,6 5,6 b min da min Limiting speeds rpm grease oil NAO6XX1 NAO7X2X NAO9XX NAO1XX NAO1X26X NAOXX NAOX2X NAOX2X NAOXX NAOX3X NAOXX NAO2XX NAO2X37X NAOX4X NAOXX NAO29XX NAO3XX NAO3XX NAO3X47X NAO3X47X1 NAO3X52X1 NAO33X47X NAOX5X NAOXX2 NAO4XX NAO4X62X2 NAO4X65X2 NAOX62X2 ra da b ra Mass kg (approx) ras ra a db ra Machinedring needle roller bearings, separable series NAO NEELE ROLLER BEARINGS 7 7

158 NEELE ROLLER BEARINGS Machinedring needle roller bearings, separable series NAO r C r E d F Boundary dimensions Basic load ratings dynamic static dynamic static N kgf Bearing numbers d C rs min 1) F E ,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, Notes: 1) These values are the allowable minimum dimensions of the chamfer dimension r. Cr Cor Cr Cor NAOX72X2 NAO5X6X2 NAO5X7X2 NAOX5X3 NAO6X9X3 NAO65X95X3 NAO7X95X3 NAO7X1X3 NAO75XX NAO75XX3 NAOX11X3 NAO5X1X3 NAO9XX3

159 Bearing numbers Abutment dimensions db max a b min da min Limiting speeds rpm grease oil Mass kg ras,23,41,6,72,77,675,5,7,,92,96 1,4 62,4 59,4 67,2 72,2 77,2 2,2 5,2 7,2 92,2 92,2 97,2,2, ,, 6, 66, 71, 76, 1, 1, 6, 6, 91, 96, 11, ,6,6 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, NAOX72X2 NAO5X6X2 NAO5X7X2 NAOX5X3 NAO6X9X3 NAO65X95X3 NAO7X95X3 NAO7X1X3 NAO75XX NAO75XX3 NAOX11X3 NAO5X1X3 NAO9XX3 ra a db ra da b ra Machinedring needle roller bearings, separable series NAO NEELE ROLLER BEARINGS 9 9 (approx)

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