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。
0.5240 inches minimum and 0.5340 inches maximum overall width, 2.0640 inches minimum and 2.0670 inches maximum outside diameter, 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, 1.6190 inches minimum and 1.6290 inches maximum bore diameter