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).
1.1772 inches nominal cone width, afbma class 2 standard tolerance designation, steel overall material, 0.0312 inches nominal cone corner radius, 1.7500 inches nominal bore diameter