| 摘要 |
Both end portions in an axial direction of a hub 8 b are supported by a supporting portion of a working apparatus rotatably centering on a center axis of the hub 8 b and in a state of restraining a displacement thereof in a radial direction. Further, before removing the hub 8 b from the supporting portion from the state, an outer side face 28 of an attaching flange 13 and a first inner ring track 14 are worked to predetermined shapes. Thereby, judder in braking is prevented from being brought about by promoting a perpendicularity of the outer side face 28 of the attaching flange 13 provided to the hub 8 b relative to a rotational center of the hub 8 b and restraining a deflection of a rotor coupled to fix to the outer side face 28.
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