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。
2.180 inches minimum and 2.190 inches maximum counterbore diameter, 2.4409 inches minimum and 2.4414 inches maximum aperture diameter, 2.5895 inches minimum and 2.5900 inches maximum outside diameter, 26.0 rockwell c minimum and 32.0 rockwell c maximum hardness rating, acft eng f-101 end item identification