US Patent 7172510 Hub member and shaft journal assembly and method

A hub member and shaft joint assembly includes an inner joint part of a constant velocity joint and a shaft journal. The hub member has a central through-aperture with inner toothing for receiving the shaft journal, and outer ball tracks. The inner toothing is formed in a predetermined limited length as far as a toothing run-out and is followed by a bore with a reduced diameter. The shaft journal has shaft toothing and, at a distance from the shaft end, a first conical step serving as a top face relative to the toothing run-out and directly contacting same. A larger second conical step is positioned axially spaced from the first step and forms a toothing end of the shaft toothing.