| 摘要 |
PROBLEM TO BE SOLVED: To reduce cost of a hub ring in a bearing device for a wheel for driving wheel and driven wheel. SOLUTION: A cylindrical pilot part P fitted to an inner periphery of the wheel 80 is formed in an inner diameter part of a brake rotor 70. By the formation of the pilot part P, the shape of the hub ring 10, particularly, the shape on an outboard side is simplified, and thereby the hub ring 10 can be manufactured by cold forging, etc., at low cost. An outside joint member 31 of an outboard side constant velocity universal joint 30 and the hub ring 10 are connected by a nut member 90. COPYRIGHT: (C)2008,JPO&INPIT
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