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, 0.4997 inches minimum and 0.5007 inches maximum bore inside diameter, bcxd criticality code justification, 0.031 in. radius chamfer/radius of outside corner, 0.470 inches minimum and 0.475 inches maximum bore length