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.
0.687 inches nominal counterbore diameter, not casehardened casehardening indicator, 0.125 inches nominal counterbore depth, 0.438 inches minimum and 0.439 inches maximum bore inside diameter, 0.030 in. radius chamfer/radius of outside corner