| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wheel bearing device capable of preventing the come-off of an inner ring in processes of assembly on a vehicle without giving ill effects to a bearing function and of keeping a working degree lower in diameter-enlargement caulking of a hub ring for preventing the come-off of the inner ring without interference between a caulked portion of the hub ring and a stem portion of a constant velocity universal joint outer ring. <P>SOLUTION: A stepped portion 16 is provided at the inner peripheral edge of the inboard-side end face of the inner ring. At the inboard-side end of the hub ring 9, the caulked portion 9c subjected to diameter-enlargement caulking is provided for engaging an axial stepped face 16b of the stepped portion 16 of the inner ring 10. To avoid interference with the constant velocity universal joint stem portion 13a, an inclined or curved face which is gradually recessed as tending to the inner diameter edge is provided on all or part on the inner diameter side of an inboard-side end face of an annular release recessed portion 9d or the caulked portion 9c, or a chamfer is provided at the inner diameter edge of the inboard-side end face of the caulked portion 9c. <P>COPYRIGHT: (C)2008,JPO&INPIT |
