A cylindrical body of either solid or hollow construction which provides the rolling elements in the roller bearing.
rockwell hardness a scale 81.2 to 83.4 special features, 66,aisi/sae e50100,e51100 or e52100 fed std single material response overall material document and classification, steel comp e50100 or steel comp e51100 or steel comp e52100 overall material, 0.0779 inches minimum and 0.0781 inches maximum rolling element diameter, 0.6000 inches minimum and 0.6200 inches maximum overall length