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, 0.122 inches minimum and 0.124 inches maximum face width, 0.3115 inches minimum and 0.3125 inches maximum outside diameter, fuel control,aircraft jet engine fsc application data, 0.101 inches minimum and 0.103 inches maximum bore inside diameter