Patent ID: 7918322

Claim:
A system for connecting a brake disc and hub, the system comprising: supporting elements formed on an inner circumference of the brake disc; bosses formed on an outer circumference of the brake disc hub, each of said bosses having depressions formed in opposite side surfaces that run at least essentially radially with respect to a brake disc axis of rotation; and intermediate elements distributed in a circumferential direction between the brake disc hub and the brake disc, the intermediate elements projecting into interspaces provided between the bosses and the supporting elements, the intermediate elements ensuring a transmission of braking torque from the brake disc to the brake disc hub; wherein each intermediate element arranged in a corresponding interspace is seated against an assigned supporting element in a depression thereof and against an assigned boss in one of said depressions in said bosses, the intermediate element and the depressions of the supporting element and the boss being operatively shaped to secure the intermediate element in a radial direction; and wherein at least one of the assigned boss depression and the assigned supporting element depression has a radius of curvature that corresponds to a radius of curvature of the intermediate element, while the other of the assigned boss depression and the assigned supporting element depression has a radius of curvature greater than the radius of curvature of the intermediate element so that the intermediate element is seated with a slight radial play in said other of the boss depression and the supporting element depression, and radially movable within said other of the depressions upon expansion of the brake disc until a portion of the intermediate element bears against a wall of said other of the depressions.