實心或空心結構的圓柱體,為滾子軸承提供滾動元件。
harden and temper to rc 63 min special features, steel comp e50100 or steel comp e52100 overall material, 0.1560 inches minimum and 0.1562 inches maximum rolling element diameter, 66,aisi/sae e50100 or e52100 fed std single material response overall material document and classification, 0.6360 inches minimum and 0.6560 inches maximum overall length