WHEEL BEARING DEVICE AND ITS QUALITY MANAGEMENT METHOD

摘要

There is provided a wheel bearing device capable of detecting an actual use state and storing it as a history. An IC tag (9) capable of performing non-contact communication is mounted on a wheel bearing device. The IC tag (9) is formed as a unitary block with a sensor detecting a detection object of the wheel bearing device or formed as a sensor-equipped IC tag electrically connected. The detection signal of the sensor is inputted by an input system different from the non-contact communication path. The sensor is, for example, a coil and it is possible to provide a magnet (10) passing in the vicinity of the sensor-equipped IC tag (9) by the relative rotation.