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。
0.4500 inches minimum and 0.4600 inches maximum overall width, qq-c-465,alloy 642 fed spec 1st material response or qq-c-390,alloy g6 fed spec 2nd material response overall material document and classification, copper alloy 642 overall material, 2.4120 inches minimum and 2.4220 inches maximum outside diameter, 2.2090 inches minimum and 2.2120 inches maximum bore diameter