Means for mounting on a wheel and the wheel with the device

Means for a wheel bearing comprehensive wheel of a vehicle, - which is prepared to be based on the vehicle outside in the hub region of the wheel integral with a provided for rotating part of the wheel connected, - which comprises a sensor for detecting the vibration occurring during the traveling of the vehicle, - comprising an evaluation unit for evaluating the detected vibration to an impending fault condition of the wheel bearing out - which comprises a Signalausgeber for outputting an optical signal visible from the outside in case that the evaluation results in the impending fault condition, and - comprising an electric power supply for powering the sensor, the transmitter and the Signalausgebers.