Abstract: A method for fabricating a brake disc assembly comprising the steps of machining a radially extending gage surface (54) on the support flange (34) of an outer race (32) of a bearing assembly disposed around a hub (14) and inserting a fixture post (72) through a spring washer (68) and through the bore (22) in the hub (14). A clamp plate (74) is disposed in engagement with the base (26) of the brake disc with a washer/nut (78) over the clamp plate (74) to place the post (72) in tension to urge the spring washer (68) against the bearing assembly tomaintain the pre-load on the bearing assembly. The outer race (32) of the bearing assembly is clamped with the gage surface (54) drawn against a gage (84) to properly orient the outer race (32) about a fixed axis A. Thereafter, the clamp plate (74) is engaged by rotating jaws (90) which rotate about a floating axis B.

Abstract: A wheel assembly (10) for a vehicle comprising a rotor (12) having a central portion (14) with a periphery, a wheel mounting surface (16), and a hub mounting surface (18) opposite the wheel mounting surface (16). A hub (26) and a wheel (24) are mounted to the rotor (12) in a sandwich arrangement. The rotor (12) has a recess (30) about the periphery of the wheel mounting surface (16) of the central portion (14). The recess (30) enables the wheel (24) to be mounted on the rotor (12) to isolate clamping forces of the wheel (24) to prevent the wheel mounting forces from creating a moment which would move the disc portion (20) of the rotor (12) out of radial alignment with the wheel (24), i.e., to prevent runout of the rotor (12).