The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
4.1870 inches minimum and 4.1880 inches maximum bore diameter, 66 fed std single material response overall material document and classification, 4.9990 inches minimum and 5.0000 inches maximum overall outside diameter, 2.0050 inches minimum and 2.0100 inches maximum overall width, straight bore shape