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。
for main battle tank,m1 end item identification, 12.080 inches nominal outside diameter, raised surface w/ aperture cross-sectional shape style, 12 bolt circle hole quantity, 6.200 inches nominal aperture diameter