| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for a wheel, in which circumferential play is suppressed and in which a hub ring and an outer ring of a constant velocity universal joint can be firmly and easily joined to each other. <P>SOLUTION: An axially extending projection 35 is formed on a shaft section 12 of the joint outer ring 5, and the shaft section 12 is press-fitted into a hole 22 of the hub ring 1. By this press-fitting, a recess 36 closely fitting on the projection 35 is formed in the inner diameter surface of the hub ring 1 to form a rugged fit structure M in which the entire regions of those portions of the projection 35 and the recess 36 at which they are fitted to each other are in close contact with each other. An edge of an end face 35a on a press-fitting start side of the projection 35 has a corner part 39 which is not rounded and can cut into the other member. <P>COPYRIGHT: (C)2009,JPO&INPIT |
