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).
0.0310 inches nominal cone corner radius, steel overall material, 0.8750 inches nominal cone width, axial distance between center of roller contact line & cone stability point on shaft axis 0.2000 in. special features, 1.2500 inches nominal bore diameter