The invention discloses a wheel hub bearing unit and belongs to the field of automobile accessories. The wheel hub bearing unit comprises a wheel hub, an outer ring flange, a bell-shaped housing, a long-end shaft neck, balls and a ventilated disc, wherein the wheel hub and the ventilated disc form an integrated structure; the bell-shaped housing and the long-end shaft neck form an integrated structure; a handle part of the long-end shaft neck and an inner circle of the wheel hub are matched by a spline; a step is arranged on the long-end shaft neck; a ferrule is fixed on the step; a first inner raceway is arranged on the ferrule; a second inner raceway is arranged on the long-end shaft neck; two outer raceways which respectively correspond to the first inner raceway and the second inner raceway in position are arranged on the inner circle of the outer ring flange; the balls are arranged between each inner raceway and the corresponding outer raceway; one end of the ferrule is tightly attached to the step; the other end of the ferrule is tightly attached to the wheel hub; the bell-shaped housing and the long-end shaft neck are integrated, and the ventilated disc and the wheel hub are integrated, so that the number of parts of the wheel hub bearing unit is greatly reduced, the structure is more compact, and the integral weight of the wheel hub bearing unit is reduced; the integrated degree of the parts is high, so that the reliability of the system is improved, and mounting is more convenient and efficient.
Wheel hub bearing unit
2015-07-29
Patent
Elektronische Ressource
Englisch