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。
0.6020 inches minimum and 0.6120 inches maximum overall width, 2.2950 inches minimum and 2.3050 inches maximum bore 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, 2.5210 inches minimum and 2.5240 inches maximum outside diameter