| 摘要 |
<p>A bearing race assembly for use in a swivel joint (110) characterized by a male connector (112) having a central axis (126), a first end (unnumbered), and a plurality of outer annular grooves (120) each having a generally arcuate cross section and laying in a respective plane generally perpendicular to the central axis, the outer grooves (120) each having a generally constant radius measured from the central axis whereby each outer groove (120) has a greater radius than each adjacent outer groose closer to the first end (unnumbered); a female connector (114) coaxially aligned with the male connector (112) and adapted to receive and fit around the male connector, the female connector (114) having a first end (unnumbered) and a plurality of inner annular grooves (118) each having a generally arcuate cross section and laying in a respective plane generally perpendicular to the central axis, the inner grooves each corresponding to one of the outer grooves (120) and forming therewith an arcuate race; and a plurality of ball bearings (34, 35, 36) received in each race to facilitate relative rotation of the male (112) and female (114) connectors about the central axis (126).</p> |
