| 摘要 |
<p>There is provided a manufacturing method for a vehicle hub unit in which a hub wheel is arranged radially inward of an outer ring via rolling elements, an inner ring member is fixed to an end portion of a hub spindle of the hub wheel by clinching, a spline tooth portion that meshes with a tooth portion of a constant velocity joint that transmits driving force to the hub unit is formed at a clinched portion of the hub spindle, and a protruding portion is formed at a radially inner side portion of a bottom of the spline tooth portion. The clinched portion is formed by plastically deforming a cylindrical end portion of the hub spindle outward with a clinching tool. The clinching tool includes a punch and an oscillating spindle to which the punch is non-rotatably attached.</p> |
