Needle Roller Thrust Bearings and Washers

Thrust bearings are available in 5 mm to 240 mm (0.1969 – 9.4488 inch) and have a complement of needle rollers held in place by a cage.

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 whose webs 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 which service as raceway surfaces for the needle rollers. Washers can be supplied separately or can be mechanically unitized to the needle roller thrust assemblies for ease of handling
All types have very small cross sections. If the backup surfaces cannot be used as raceways, hardened washers are available. Thrust bearings are also available with needle rollers or heavier cylindrical rollers for high load-carrying capacity.

Features and Benefits:

• One-way fool-proof assembly features, anti-rotation locking features and lubrication flow enhancements.
• High-speed performance and application flexibility.

NTA - Thrust needle roller and cage assemblies designation

TRA, TRB, TRC, TRD, TRE, & TRF - Thrust washer designation

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