Patent ID: 8025579
Filing Date: 2011-09-27
Classification: B60B,F16C,F16D,Y10T

Abstract:
1. A wheel support apparatus comprising: a hub wheel which includes a hub shaft and is to mount a wheel thereon, a first side surface spline being formed on an end surface of the hub shaft; and a constant velocity joint which includes an outer ring connected to the hub shaft in a torque-transmitting manner, a second side surface spline meshed with the first side surface spline being formed on an end surface of a side wall portion of the outer ring abutting against the end surface of the hub shaft, wherein each of the first and second side surface splines includes a number of spline teeth and bottom lands defined between the spline teeth, wherein tooth tops of the spline teeth of one of the first and second side surface splines and the bottom lands of the other side surface spline are formed into an arc-shaped surface disposed on a circle having a center disposed on a center of pivotal movement of the constant velocity joint, and wherein the arc-shaped tooth tops contact the corresponding arc-shaped bottom lands so that the hub shaft and the outer ring can be aligned with each other, and wherein tooth tops of the other side surface spline and the bottom lands of the one of the first and second side surface splines are disposed on planes perpendicular to a center axis of the outer ring.