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).
mrap buffalo mk2a2 end item identification, 1.3125 inches nominal cone width, 0.1406 inches nominal cone corner radius, 3.0000 inches nominal bore diameter, steel overall material