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。
nonlocating locating feature, straight bore shape, 80.0 millimeters nominal bore diameter, 0.6890 inches minimum and 0.6940 inches maximum inner ring width, 0.0011 inches minimum radial and 0.0021 inches maximum radial internal clearance