The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
6.4973 inches minimum and 6.4983 inches maximum overall outside diameter, 2.5100 inches minimum and 2.5150 inches maximum overall width, straight bore shape, 66 fed std 1st material response and 66 fed std 2nd material response overall material document and classification, 5.4990 inches minimum and 5.5000 inches maximum bore diameter