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, 2.2950 inches minimum and 2.3050 inches maximum bore diameter, copper alloy 642 overall material, 2.5210 inches minimum and 2.5240 inches maximum outside diameter, 0.6020 inches minimum and 0.6120 inches maximum overall width