一種相對扁平的剛性部件,帶或不帶中心孔,用於將環形軸承或套筒軸承固定在合適的外殼中。必須附有用於安裝的鑽孔和/或螺紋孔。不含:端蓋、電動旋轉設備。
3.125 inches nominal aperture diameter, 4.250 inches nominal outside diameter, aluminum alloy overall material, round, unthreaded, counterbored mounting hole type, 0.166 inches minimum and 0.174 inches maximum mounting hole diameter