ローラー ベアリングの転動体となる、中実または中空構造の円筒形本体。
steel comp e50100 or steel comp e52100 overall material, 0.0779 inches minimum and 0.0781 inches maximum rolling element diameter, 66,aisi/sae e50100 or e52100 fed std single material response overall material document and classification, 0.1950 inches minimum and 0.2150 inches maximum overall length, cylindrical roller, spherical ends style designator