A cylindrical body of either solid or hollow construction which provides the rolling elements in the roller bearing.
66,aisi/sae e50100 fed std single material response overall material document and classification, cylindrical roller, flat ends style designator, 1.2300 inches minimum and 1.2500 inches maximum overall length, 0.2186 inches minimum and 0.2188 inches maximum rolling element diameter, steel comp e50100 overall material