Description

*** JTEKT (Formerly Koyo Brand) ***

Thrust Needle Roller - Washer (TRA, TRB, TRC, TRD)

About Thrust Bearings, Assemblies, Washers

Dimensions for bore and O.D. of thrust assemblies and washers are nominal.
Thrust washers burnished at least one - quarter of bore area (remainder is rough breakaway finish).
O.D. finish of washers will be as blanked.

About Mounting Tolerances Thrust Needle Roller And Cage Assembly

Thrust needle roller and cage assemblies are complements of small diameter needle rollers, arranged in a spoke-like configuration.
Needle rollers are equally spaced by means of a cage, its web section separates the rollers and provides guidance to keep them tracking in an orbital path.
The purpose of these assemblies is to transmit a thrust load between two relatively rotating objects while greatly reducing friction.
Thrust needle roller and cage assemblies also can be unitized with lipped washers to serve as raceway surfaces for the needle rollers.
Washers can be supplied separately or can be mechanically unitized to the thrust needle roller and cage assemblies for ease of handling.

Features