Front page inconsistent with disclosure, abstract based on front page, Patent Office notified, brake disk for a motor vehicle has a polygonal inner shape for attachment to the wheel hub

摘要

Brake disk assembly for a motor vehicle has a friction disk and a fastening wheel hub. A fastening element is used to connect disk and hub. The disk has a polygonal inner shape that is matched to an external shape on the wheel hub. The polygonal outer shape has a multiplicity of slit type radial recesses. The fastening element has a clamping action and serves for axial fastening and securing of the friction disk.