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。
0.1230 inches minimum and 0.1260 inches maximum overall width, steel comp 440c overall material, 1.0300 inches nominal bore diameter, qq-s-763,class 440c fed spec single material response overall material document and classification, 1.5300 inches minimum and 1.5310 inches maximum outside diameter