| 摘要 |
PROBLEM TO BE SOLVED: To provide a lightweight and compact wheel bearing device capable of certainly suppressing partial wear of a brake or vibration during braking. SOLUTION: In this wheel bearing device, an inboard-side raceway surface 21 of plural-line raceway surface 21, 22 formed in an inner member 20 is formed in an inner ring 40 fitted on the periphery of a hub ring 30. An inboard-side end part of the hub ring 30 is caulked to dismountably connect the inner ring 40 and the hub ring 30 by plastic deformation, while a run out range of a brake rotor installation face 33 of a wheel installation flange 31 formed in the hub ring 30 is restricted within a prescribed standardized value.
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