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。
astm a27 assn std 1st material response or mil-s-15083,grade 70-36 mil spec 2nd material response overall material document and classification, steel uns j03501 or steel uns j03504 overall material