用於分隔和固定軸承、球(經修改)的滾動元件的框架或外殼。
retainer 26.4900-26.4950 (od) x 21.75 (id) x 1.1875 (thk) special features, nimitz class cvn end item identification, steel separator slug material, asrm a242 assn std single material response separator slug material document and classification