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).
feat criticality code justification, 5.0000 inches nominal bore diameter, matterial, finish and quality inspections required for safe usage in avation wheels special features, b-52 acft mlg end item identification, 1.8125 inches nominal cone width