The inner component of a ball or roller bearing which provides a contact surface for the rolling elements of an antifriction bearing.
straight bore shape, 0.7872 inches minimum and 0.7874 inches maximum bore diameter, ams 6490 assn std single material response inner ring material document and classification, 0.6200 inches nominal overall width, 0.9000 inches minimum and 0.9100 inches maximum overall outside diameter