A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes:bearing, roller, cylindrical; roller, electrical switch; and friction bearings. See also cam follower, needle bearing.
ams 3651 assn std single material response material document and classification, plastic polytetrafluoroethylene material, 0.263 inches nominal bore inside diameter, not casehardened casehardening indicator, 1.000 inches nominal outside diameter