Patent ID: 8690441

Claim:
A wheel bearing device for a motor vehicle, comprising: an inner ring arrangement, which is formed for rotationally fixed reception of a first rotary partner; an outer ring arrangement, which is connectable with a second rotary partner in a rotationally fixed manner; a multitude of rolling elements, which roil between the inner ring arrangement and the outer ring arrangement so that the inner ring arrangement and the outer ring arrangement and/or the first rotary partner and the second rotary partner are rotatable against each other; an electric sensor device, which, using a mechanical contact for detecting a working condition of the wheel bearing device, comprises a stationary sensor element and a rotating sensor element which together form the mechanical contact, wherein the stationary sensor element is connected with the inner ring arrangement without interposition of the first rotary partner; and the stationary sensor element including an electric conductor arrangement, wherein the sensor device operates according to an opener principle, in which a signal is activated as soon as the electric conductor arrangement is opened in the stationary sensor element, wherein the stationary element comprises a functional surface surrounding a rotation axis of the wheel bearing device, the rotating sensor element faces the functional surface and rotates along, a circular path, and the electric conductor arrangement is arranged on the functional surface and extends circumferentially in an undulating pattern along the functional surface.