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。
2.8700 inches minimum and 2.8720 inches maximum outside raised surface diameter, 2.3400 inches minimum and 2.3600 inches maximum aperture diameter, 0.3800 inches nominal raised surface height, 0.4900 inches nominal overall thickness