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。
2.874 inches minimum and 2.876 inches maximum aperture diameter, 4 bolt circle hole quantity, 3.438 inches nominal counterbore diameter, 0.078 inches nominal counterbore depth, 3.500 inches nominal length