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.
0.030 in radius chamfer/radius of outside corner, not casehardened casehardening indicator, 0.070 inches minimum and 0.080 inches maximum counterbore depth, 0.500 inches nominal counterbore diameter, 0.250 inches minimum and 0.251 inches maximum bore inside diameter