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。
slewing ring; 40 mounting holes equally spaced on inner ring; 48 mounting holes equally spaced on outer ring; internal spur full depth involute gear special features, 1248.9 millimeters minimum and 1250.0 millimeters maximum overall outside diameter, 952.5 millimeters minimum and 952.9 millimeters maximum bore diameter, 98.0 millimeters nominal overall width