用於隔開並保持軸承、滾子(經修改)的滾動元件的框架或外殼。
qq-c-465,alloy 642 fed spec 1st material response or alloy 954,type 2 or 3 fed spec 2nd material response overall material document and classification, copper alloy 642 overall material, 2.0640 inches minimum and 2.0670 inches maximum outside diameter, 0.5240 inches minimum and 0.5340 inches maximum overall width, 1.6190 inches minimum and 1.6290 inches maximum bore diameter