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.
0.670 inches minimum and 0.690 inches maximum counterbore diameter, 0.060 in. radius chamfer/radius of outside corner, not casehardened casehardening indicator, 0.325 inches minimum and 0.332 inches maximum bore inside diameter, 0.095 inches minimum and 0.135 inches maximum counterbore depth