Patent ID: 8061785

Claim:
A hub device for a disc brake, comprising: a hub having a fastening portion, the hub being configured and operable so that the fastening portion fastens the hub to a vehicle wheel; a number of external ridges or splines extending in an axial direction of the hub and configured and operable to hold a brake disc in the circumferential direction of the hub; the hub having a bearing socket which is supported by the fastening portion of the hub, the bearing socket having a portion which points away axially from the fastening portion, the bearing socket portion having an outer shell surface; the brake disc having a central hole with grooves in it running axially for cooperation with the ridges or splines; each ridge or spline has a protruding portion protruding freely away from the fastening portion and being shaped and positioned to form a radial gap between a free inner radial surface of the protruding portion and the outer shell surface, the protruding portions being shaped and operable to support the brake disc, the radial gap extending over the full axial extent of an overlap between the protruding portion and the outer shell surface.