| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a wheel bearing device in weight. SOLUTION: An inner member 5 is constituted of a hub ring 9 having a flange 8 for mounting wheel and an inner ring 11 faced to an inner end of the hub ring 9, and a spline 12 is formed in an inner diameter surface of the hub ring 9. A joint shaft part 17 of a uniform constant velocity universal coupling 7 is fitted to the inner diameter surface of the hub ring 9 and the inner ring 11, a spline 12' of the joint shaft part 17 is engaged to the spline 12 of the hub ring 9, and ends of the hub ring 9 and the inner ring 11 faced to each other are integrally formed by a connecting member 29. The weight of the device is reduced by dispensing with a thickness at an inner diameter side of the hub ring 9 compared with the conventional device.</p> |
