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.
not casehardened casehardening indicator, 1.123 inches minimum and 1.125 inches maximum outside diameter, 7/32 in. by 5 deg chamfer/radius of outside corner, 0.5655 inches minimum and 0.5665 inches maximum bore inside diameter, 0.680 inches minimum and 0.682 inches maximum face width