球軸承或滾子軸承的外部組件,為減摩軸承的滾動元件提供接觸面。
0.8218 inches minimum and 0.8268 inches maximum overall width, 3.1491 inches minimum and 3.1496 inches maximum overall outside diameter, steel overall material, rbec no.1 standard tolerance designation, 2.6751 inches minimum and 2.6756 inches maximum largest bore diameter