単列または複数列の硬化円筒ころとリテーナー(内輪または外輪の有無を問わず)で構成される非調整式ころ軸受。軸受、ころ、機体は除く。
20.0 millimeters nominal bore diameter, one direction locating feature, straight bore shape, 0.0011 inches minimum radial and 0.0017 inches maximum radial internal clearance, 42.0 millimeters nominal overall outside diameter