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, 0.030 in. min 0.050 in. max radius chamfer/radius of inside corner, 2.990 inches minimum and 3.000 inches maximum face width, 2.500 inches nominal outside diameter, 1.2495 inches minimum and 1.2500 inches maximum bore inside diameter