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).
1.1024 inches nominal cone width, airplane,cargo-transport end item identification, 0.09 inches nominal backface corner radius, 4.2116 inches nominal bore diameter, 0.09 inches nominal cone corner radius