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。
4 bolt circle hole quantity, 1.437 inches nominal aperture diameter, 4.000 inches nominal outside diameter, 1.627 inches minimum and 1.628 inches maximum counterbore diameter, 0.500 inches nominal counterbore depth