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).
duty class hm series special features, 0.0310 inches nominal cone corner radius, steel overall material, 1.1563 inches nominal cone width, 1.6250 inches nominal bore diameter