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。
copper alloy overall material, 0.4840 inches minimum and 0.4940 inches maximum overall width, pressed retainer fabrication method, 2.7380 inches minimum and 2.7480 inches maximum outside diameter, 2.5470 inches minimum and 2.5500 inches maximum bore diameter