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