An assembled inner component of a tapered roller bearing, consisting of a cone (which provides a contact surface for the rolling elements of the bearing), a complement of tapered rollers (the rolling elements), and frequently a retainer (which spaces the rolling elements).
0.0600 inches nominal cone corner radius, 1.6875 inches nominal cone width, 3.3750 inches minimum and 3.3760 inches maximum bore diameter, steel overall material, afbma class 2 standard tolerance designation