Thrust needle roller and cage assemblies are complements of small diameter needle ollers, arranged in spoke‐like confirguration. 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. http://www.czh-bearings.com/