| 摘要 |
PURPOSE:To facilitate dimensional control of floating amount with reduced number of components by joining a ring-shaped brake disc with a wheel hub by means of a pin. CONSTITUTION:A wheel hub 2 ha s groove 3 along its periphery. A projection 1a formed extending radially inward from the inner periphery of a brake disc 1 is inserted into the groove 3 and is positioned to be slidable in axial directions with a pin 7. Thus, by engage-fitting the brake disc 1 with the pin 7 only, number of components can be reduced, facilitating dimensional control of the floating amount.
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