| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost wheel bearing apparatus for a driving wheel with which the number of man-hours and assembly steps can be reduced, and with which component replacement fees and repair costs can be reduced. <P>SOLUTION: This bearing apparatus for a driving wheel includes an external member 25 fitted with a vehicle knuckle hole by a predetermined joining, an internal member composed of a hub ring 1 having a flange 21 for fixing the wheel and an inner ring 24 fitted with the hub ring 1, double-row rolling elements 30 rollably interposed between the external member 25 and the internal members 1, 24, and an outside joint member 5 of a constant velocity universal joint integral with the hub ring 1 via a projection-recess fitting structure M formed by press-fitting. An annular groove is formed in both an outer peripheral surface 25a of the external member 25 and an inner peripheral surface of the knuckle hole, and a retaining ring 130 is engaged in both annular grooves. The external member 25 is prevented from coming off of the knuckle, and the external member 25 can be separated from the knuckle only as a result of deformation or breakage of the retaining ring 130. <P>COPYRIGHT: (C)2010,JPO&INPIT |
