一種通常呈圓形的剛性部件,用於容納軸承。它用於定位軸承,但不會包裹軸承或限制軸承的運動。
ams 6322 assn std single material response overall material document and classification, steel comp 8740 overall material, 0.4990 inches minimum and 0.5010 inches maximum overall width, 5.9300 inches minimum and 5.9500 inches maximum outside diameter