Thrust Needle Roller Bearings Thrust Roller Bearings. Structures of Thrust Bearings. Needle roller. Cage. Cylindrical roller. Cage.

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eele Roller Bearins Roller Bearins Structure an Features Bearins consist of a precisely mae cae an rollers They have hih riiity an hih loa

types of raceway rins are available, an suitable bearins can be selecte accorin to the operatin conitions When the bearin mountin surfaces of a

are most suite to applications where hih accuracy is require at hih spees an uner fluctuatin heavy loas, such as rivin mechanisms for automobiles,

1 eele Roller Bearins Roller Bearins Structure an Features Bearins consist of a precisely mae cae an rollers They have hih riiity an hih loa capacities an can be use in small spaces eele Roller Bearins incorporate neele rollers, while Roller Bearins incorporate cylinrical rollers Various types of raceway rins are available, an suitable bearins can be selecte accorin to the operatin conitions When the bearin mountin surfaces of a machine are heat-treate an finishe by rinin as raceways, Bearins can be use without raceway rins allowin the machine to be mae more compact They are most suite to applications where hih accuracy is require at hih spees an uner fluctuatin heavy loas, such as rivin mechanisms for automobiles, machine tools, an hih-pressure pumps Structures of Bearins eele roller ae ylinrical roller ae Inner rin ylinrical roller ae Outer rin Inner rin Outer rin washer F F

2 Types Ientification umber Accuracy In Bearins, the types shown in Table are available The ientification number of Bearins consists of a moel coe, imensions an a classification symbol Some examples are shown below The accuracy of Bearins is base on JIS B as shown in Table Table Type of bearin Type neele roller bearins roller bearins Without inner an outer rins With inner an outer rins Moel coe TB AZK AZ Table Type of bearin rin Type Inner rin Outer rin eele Roller Bearins washer Moel coe WS GS AS Examples of ientification number Example (In case of TB or AS) Type of bearin Moel coe imensions TB Table Tolerances Type of bearin neele roller bearins roller bearins Item TB AZK AZ imension With With Heiht imension symbol w c c w T Tolerance E c Equivalent to JIS B 6 lass w w As per Table As per Table unit m Equivalent to JIS B 6 lass Equivalent to JIS B 6 lass These bearins consist of a cae mae from a steel plate, which is precisely press forme an surfaceharene, an neele rollers with a iameter variation within m They have a rii structure an a hih lubricant-retainin capacity As they have the lowest sectional heiht compare with other thrust bearins, they can be use instea of conventional thrust washers an can withstan hih-spee rotations with a low coefficient of friction Specially esine thin inner rins (WS) an outer rins (GS), an especially thin ( thick) thrust washers (AS), are available for use in various applications These bearins are enerally use by utilizin their inner surface as the uie surface Roller Bearins Example (In case of AZ or AZK) Type of bearin Bearin heiht Accuracy class lass Moel coe imensions lassification symbol AZ P Inner rins Outer rins washers WS GS AS Table Tolerances of bore an outsie iameters for AZK series ominal imension Over c ae bore iameter eviation With With With unit m c ae outsie iameter eviation Incl Hih Low Hih Low B B s As per Table b h B As per Table h E e Table Tolerances of heiht for AZ series ominal bearin bore ia Over Ts eviation of an actual bearin heiht Incl Hih Low unit m In this series, the cae cylinrical rollers AZK an the complete bearins AZ in which AZK are combine with an inner rin (WS) an an outer rin (GS) are available The cae has a special precise structure which is hihly rii, an cylinrical rollers are outwarly arrane an uie by the cae with exact precision to enable them to withstan heavy loas even at hih spees Owin to the hih accuracy of the bearin heiht T, they are suitable for use in machine tools, ultra-hih pressure pumps, etc These bearins are enerally use by utilizin their inner surface as the uie surface Example (In case of WS or GS) Type of bearin rin Accuracy class lass Moel coe imensions lassification symbol WS P ote ot applicable to the moel AZK F =kf=lbs =inch F

3 Table Tolerances an allowable values for WS an GS or ominal bearin bore ia or outsie ia mp Inner rin Sinle plane mean bore iameter eviation V sp variation in a sinle raial plane mp Outer rin Sinle plane mean outsie iameter eviation V sp variation in a sinle raial plane unit m Inner rin or outer rin S i or S e Bearin rin thickness variation lass lass 6 lass Over Incl Hih Low Max Hih Low Max Max otes for mp an V p, an for mp an V p, respectively for thickness variations of inner an outer rins i for thickness variations of rins for AX(l) an BX(l) Fit The recoene fits for Bearins are shown in Table Table Recoene fits Type of bearin neele roller bearins roller bearins Inner rins Outer rins washers TB AZK AZ WS GS AS Tolerance class Housin bore h(h) h6(h) h6(h) h(h) H(H) H(H) Mountin When mountin Bearins, the followin items shoul be consiere When inner an outer rins are not use, the harness of the raceway surfaces shoul be 6HR, the effective harenin epth shoul be aequate, an the surface rouhness shoul be less than mr a When mountin inner an outer rins to shaft an housin bore, imensions relate to mountin shoul be base on the imension tables Also, the mountin surfaces shoul be finishe at riht anles to the center axis an they shoul be sufficiently rii To avoi elastic eformation, the thrust washer AS must be seate uniformly on its matin surface A small warp in an AS washer will be correcte automatically when an axial loa is applie Roller Bearins are combinations of a copper alloy component an cylinrical rollers When hanlin the AZK itself, care shoul be taken to prevent eformations, blemishes, etc Table Permissible limit values for chamfer imension r s min r s max (Raial irection) Sie surface of inner rin or outer rin r s min Bearin bore or bearin outsie surface r s min r s max r s min 6 (Axial irection) Raial an axial irections r s max 6 unit Fi Mountin examples F =kf=lbs =inch F6

4 THRUST BEARIGS eele Roller Bearins ia TB AS WS GS ia neele roller bearin TB washer AS Ientification number Inner rin WS Outer rin GS w s B r smin Bounary imensions i e Basic ynamic loa ratin loa ratin spee TB 6 AS 6 WS 6 GS TB AS WS GS 6 6 TB 6 AS 6 6 WS 6 GS 6 6 TB AS WS GS TB AS WS GS TB 6 AS WS GS 6 TB AS 6 WS GS 6 6 TB AS WS GS 6 6 TB 6 AS WS GS 6 6 TB 6 AS 6 WS 6 GS TB 6 AS 6 WS 6 GS TB 6 AS WS GS TB AS WS GS TB 6 AS 6 WS 6 GS TB 6 AS 6 WS 6 GS 6 6 TB 6 AS WS GS TB 6 AS 6 WS GS 6 6 TB 6 AS WS GS 6 6 TB AS WS GS 6 otes( ) Minimum allowable value of chamfer imension r ( ) spee applies to oil lubrication For rease lubrication, a maximum of % of this value is allowable F =kf=lbs =inch F

5 THRUST BEARIGS eele Roller Bearins ia TB AS WS GS ia neele roller bearin TB washer AS Ientification number Inner rin WS Outer rin GS Bounary imensions 6 w s B r smin i e 6 6 Basic ynamic loa ratin 6 loa ratin spee TB AS WS GS TB WS GS TB WS GS 6 TB WS GS 66 6 otes( ) Minimum allowable value of chamfer imension r ( ) spee applies to oil lubrication For rease lubrication, a maximum of % of this value is allowable F =kf=lbs =inch F

6 THRUST BEARIGS Roller Bearins ia 6 AZ AZK WS GS ia roller bearin AZ 6 roller bearin AZK Ientification number 6 Inner rin Outer rin WS GS Bounary imensions T c c w B r smin i e 6 Stanar mountin imensions a Min a Max Basic ynamic loa ratin loa ratin spee AZ 6 6 AZK 6 WS 6 GS AZ AZK WS GS 6 AZ AZK WS GS 6 6 AZ AZK WS GS 6 AZ AZK WS GS AZ AZ 6 6 AZK AZK WS WS GS GS AZ AZ 6 6 AZK AZK 6 6 WS WS 6 GS GS AZ 6 AZ 6 AZK 66 AZK 6 WS 6 WS 6 GS 6 GS AZ 6 AZ 6 6 AZK 66 AZK 6 WS 6 WS GS 6 GS AZ AZ AZK 6 AZK 6 WS WS GS GS AZ 6 AZ AZK 6 AZK WS WS GS GS AZ 6 AZ 66 AZ 66 AZK 6 AZK 6 AZK 6 WS 6 WS 6 WS 6 GS 6 GS 6 GS AZ 6 AZ 6 6 AZK 6 AZK 6 WS 6 WS 6 GS 6 GS otes( ) Minimum allowable value of chamfer imension r ( ) spee applies to oil lubrication For rease lubrication, a maximum of % of this value is allowable F =kf=lbs =inch F

7 THRUST BEARIGS Roller Bearins ia AZ AZK WS GS ia roller bearin AZ AZ AZ 6 roller bearin AZK AZK AZK Ientification number 6 Inner rin Outer rin WS WS WS GS GS GS 6 6 Bounary imensions Stanar mountin imensions a Min a T c c w B r smin i e Max 6 Basic ynamic loa ratin 6 loa ratin 6 spee AZ AZ 6 6 AZK AZK WS WS GS GS AZ AZ AZ 6 6 AZK AZK AZK WS WS WS GS GS GS AZ AZ 6 AZK AZK WS WS GS GS 6 6 AZ AZ AZ 66 AZK AZK AZK 6 WS WS WS 6 GS GS GS AZ AZ AZ 6 AZK AZK AZK WS WS WS GS GS GS 6 6 AZ AZ 6 AZ 6 AZK AZK 6 AZK WS WS 6 WS GS GS 6 GS AZ AZ AZ AZK AZK AZK 6 6 WS WS WS GS GS GS AZ AZ AZ AZK AZK AZK 6 6 WS WS WS GS GS GS otes( ) Minimum allowable value of chamfer imension r ( ) spee applies to oil lubrication For rease lubrication, a maximum of % of this value is allowable F =kf=lbs =inch F

8 THRUST BEARIGS Roller Bearins ia AZ AZK WS GS ia roller bearin AZ AZ AZ 6 6 roller bearin AZK AZK AZK Ientification number 6 Inner rin Outer rin WS WS WS GS GS GS Bounary imensions 6 Stanar mountin imensions a Min a T c c w B r smin i e 6 Max 6 Basic ynamic loa ratin loa ratin spee 6 AZ AZ AZ 6 AZK AZK AZK 6 WS WS WS GS GS GS AZ 6 AZ 6 AZK 6 AZK 6 WS 6 WS 6 GS 6 GS AZ AZ 6 AZK AZK WS WS GS GS AZ AZ 6 6 AZK AZK WS WS GS GS 6 6 AZ AZ 6 AZK AZK WS WS GS GS AZ 6 AZ AZK 6 AZK 6 WS 6 WS GS 6 GS AZ AZ 6 AZK AZK 6 WS WS 6 GS GS AZ AZ 6 AZK AZK WS WS GS GS AZ 6 AZ 6 6 AZK 6 AZK WS 6 WS 6 GS 6 GS AZ 6 AZK WS GS otes( ) Minimum allowable value of chamfer imension r ( ) spee applies to oil lubrication For rease lubrication, a maximum of % of this value is allowable F =kf=lbs =inch F6

FULL COMPLEMENT NEEDLE BEARINGS

FULL COMPLEMENT NEEDLE BEARINGS FULL OMPLEMENT NEELE EARINGS Technical features Full complement neele bearings These bearings are available with or without an inner ring from 12 bore size. Stanar complete bearings type NA have an inner