An assembled inner component of a roller bearing, consisting of a frame or inclosure which spaces and retains the rolling elements of a bearing, roller (as modified) and the rollers which are the rolling elements in a bearing, roller (as modified).
4.0800 inches minimum and 4.0950 inches maximum outside diameter, steel retainer material, 2.5020 inches minimum and 2.5170 inches maximum bore diameter, steel comp e52100 roller material, 66,aisi/sae e52100 fed std 1st material response roller material document and classification