| 摘要 |
A freewheel hub assembly has a wheel hub rotatably supported by a bearing on a steering knucle and a freewheel mechanism is provided for connecting the wheel hub with a driving axle in such a manner that a rotating torque can be transmitted from the axle to the wheel hub but the wheel hub is freely rotatable when the axle is not rotating. The freewheel mechanism includes a roller cage carrying a plurality of rollers. A retarder shoe is attached to one axial end of the cage. The one end of the cage is formed with a plurality of circumferentially spaced axial cutouts to provide a plurality of axial projections and the retarder shoe is formed with cutouts complementary to the axial projections of the cage so that the retarder shoe can be axially slidably fitted to the cage.
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