The company develops a wheel bearing unit for motor vehicles. The wheel bearing unit includes a wheel hub, a wheel bearing flange and a wheel bearing for supporting the wheel hub on the wheel bearing flange in a rotatable manner, wherein the wheel hub has a through hole for receiving the journal fixed on the wheel hub with the help of threaded connecting elements, An inner tooth part is designed on the inner peripheral surface of the defining through hole to act together with the outer tooth part of the journal in a way that cannot rotate relatively, wherein, the through hole passes through the fitting shoulder when forming the inlet hole, and the fitting shoulder is used for the fitting surface of the threaded connecting element. It is proposed here that, in order to increase the abutting shoulder, the inner tooth part at the inner peripheral surface is designed to reach the inlet hole, so that the inner diameter at least corresponds to the addendum circle diameter of the inner tooth part and is smaller than the root circle diameter of the inner tooth part; The inner tooth part has a first tooth part area located in the inlet hole and a second tooth part area spaced from the first tooth part area in the axial direction with respect to the longitudinal central axis of the through hole.
The company develops a wheel bearing unit for motor vehicles. The wheel bearing unit includes a wheel hub, a wheel bearing flange and a wheel bearing for supporting the wheel hub on the wheel bearing flange in a rotatable manner, wherein the wheel hub has a through hole for receiving the journal fixed on the wheel hub with the help of threaded connecting elements, An inner tooth part is designed on the inner peripheral surface of the defining through hole to act together with the outer tooth part of the journal in a way that cannot rotate relatively, wherein, the through hole passes through the fitting shoulder when forming the inlet hole, and the fitting shoulder is used for the fitting surface of the threaded connecting element. It is proposed here that, in order to increase the abutting shoulder, the inner tooth part at the inner peripheral surface is designed to reach the inlet hole, so that the inner diameter at least corresponds to the addendum circle diameter of the inner tooth part and is smaller than the root circle diameter of the inner tooth part; The inner tooth part has a first tooth part area located in the inlet hole and a second tooth part area spaced from the first tooth part area in the axial direction with respect to the longitudinal central axis of the through hole.
