A cylindrical body of either solid or hollow construction which provides the rolling elements in the roller bearing.
cylindrical roller, flat ends style designator, 0.4997 inches minimum and 0.5000 inches maximum rolling element diameter, 66,aisi/sae e4340h fed std 1st material response or 66,aisi/sae e52100 fed std 2nd material response overall material document and classification, steel or steel comp e4340h or steel comp e52100 overall material, 0.7440 inches minimum and 0.7460 inches maximum overall length