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。
0.5000 inches nominal overall width, 1.0030 inches minimum and 1.0040 inches maximum bore diameter, 1.1850 inches minimum and 1.1870 inches maximum overall outside diameter, steel comp e50100 overall material, b-57 acft end item identification