US Patent 7934777 Outboard hub barrel mounted rotor

A vehicle wheel assembly includes a vehicle wheel, a disc brake rotor, and a rotatable hub in which the rotor is securely clamped to the hub independently of the clamping of the wheel to the hub providing a desirable rigid coupling of the rotor and wheel without any physical contact between the wheel and rotor. The hub functions as an intermediate member for supporting both the rotor and the wheel while precluding direct contact therebetween to reduce any rotor deformation which might be induced by the more conventional technique of clamping of the rotor between the wheel and the hub.