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。
5.8900 inches minimum and 5.9100 inches maximum outside diameter, steel comp 8740 overall material, ams 6322 assn std single material response overall material document and classification, 0.4940 inches minimum and 0.4960 inches maximum overall width