Wheel hub and brake disk arrangement for heavy trucks

In a wheel hub and brake disc arrangement for a vehicle wheel, comprising a hub rotatably carried on a shaft portion and presenting an outwardly facing region of non-circular cross-section, and a brake disk which is carried by said region of the hub, said brake disc having a central hole, the shape of which is adapted to the shape of said non-circular cross-section to thereby provide a mutually non-rotatable attachment of the brake disc to the hub;

• the improvement wherein said non-circular region of the hub comprises closely spaced V-shaped ridges (10) and troughs (11), the ridges have flank surfaces, and the central hole of the brake disc is provided with corresponding V-shaped troughs (13) and ridges (14) which are so adapted in relation to the ridges and troughs on the hub that a slip fit between the hub and disc is achieved, and wherein the bottoms of the troughs of one of the disc or hub are spaced from the tops of the ridges of the other of the disc or hub when the entire flank surfaces of the ridges are in contact with the troughs.