Ntn Corporation

Xiaole Bao

Akira Torii

Yuta Nakatsuji

Hisanori Kobayashi

A bearing devicefor a vehicle wheel, wherein an annular weir partis provided on the outer periphery of an outer-side end part of an outer member, the annular weir parthaving the rotation axis L of an inner memberas a center, the weir parthaving a shape that is asymmetrical between the upper side Us and the lower side Ls of the outer member, and the weir partbeing inclined farther toward the inner side the more a weir wall surfacefaces outward in the radial direction in a part or all of the upper side Us. Also, the weir partis inclined farther toward the outer side the more the weir wall surfacefaces outward in the radial direction in a part or all of the lower side Ls.

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Iwata, Japan

Xiaole Bao