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。
2.063 inches nominal length, 3 bolt circle hole quantity, starter,engine,electrical,except aircraft fsc application data, 0.148 inches nominal overall thickness, flat w/o aperture cross-sectional shape style