| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing for a wheel superior in sealability for maintaining a fitting state of a fitting surface of a cover member constant over a long period, without being influenced by a temperature change in a use environment of the bearing. SOLUTION: This bearing for the wheel includes a resin sealing member (a cover member 20) for sealing the bearing inside partitioned between bearing rings oppositely arranged to as to be relatively rotatable. The sealing member includes the fitting surface 20m fittable to the bearing ring (an outer ring 2). Metallic core metal (an annular member) 22 is arranged along the fitting surface. In the positional relationship between the core metal and the fitting surface, the core metal is positioned while making its part approach the fitting surface more than the other part. COPYRIGHT: (C)2010,JPO&INPIT
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