| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing device for a wheel, in which circumferential play is suppressed, and a hub ring and an outer ring of a constant velocity universal joint is 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 suitable for the projection 35 is formed in the inner diameter surface of the hub ring 1 by the projection 35 to form a recess-projection fitting structure M in which the entire regions of the fitting portions of the projection 35 and the recess 36 are tightly fitted. An end face on a press-fitting start side of the projection 35 is finished by a cutting process, and accordingly, an edge of the end face 35a on the press-fitting start side has a corner part 39 which is not rounded and cuts into the other member. <P>COPYRIGHT: (C)2010,JPO&INPIT |
