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。
4.7400 inches minimum and 4.7600 inches maximum overall width, 3.3464 inches minimum and 3.3468 inches maximum bore diameter, 7.0000 inches nominal outside diameter, 4920-01-039-4139 stand,test,turbine end item identification, steel comp 4340 overall material