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.
0.162 inches minimum and 0.170 inches maximum face width, not casehardened casehardening indicator, 0.187 inches minimum and 0.188 inches maximum bore inside diameter, 0.495 inches minimum and 0.505 inches maximum outside diameter, ams 5613 assn std single material response material document and classification