| 摘要 |
PROBLEM TO BE SOLVED: To provide a wheel support device provided with a spline structure in which splines are easy to form and capable of transmitting necessary torque.SOLUTION: A rotating wheel 12 of a hub unit 10 has an annular first end surface 25 at one side in the axial direction, and an outer wheel 33 of a joint 30 has an annular second surface 38 at the other side in the axial direction. On an outer region in the radial direction of the first end surface 25 and on an outer region in the radial direction of the second end surface 38, outer splines that mesh with each other are formed respectively. On an inner region in the radial direction of the first end surface 25 and on an inner region in the radial direction of the second end surface 38, inner splines that mesh with each other are formed respectively. |
