實心或空心結構的圓柱體,為滾子軸承提供滾動元件。
steel comp e52100 overall material, 0.2178 inches minimum and 0.2179 inches maximum rolling element diameter, 0.2690 inches minimum and 0.2710 inches maximum overall length, aisi 52100 assn std single material response overall material document and classification, hardness rating rockwell c scale 58 min special features