Patent ID: 7878411

Claim:
A wheel support bearing device, which is for rotatably supporting a wheel relative to an automotive vehicle body and which comprises an outer member having an inner periphery formed with double rows of rolling surfaces, an inner member having rolling surfaces opposed to the rolling surfaces, and double rows of rolling elements interposed between the opposed rolling surfaces of the outer and inner members, comprising: an IC tag affixed to a wheel support bearing, which IC tag is capable of conducting a contactless communication and capable of storing information concerning a control or a status of use, wherein the IC tag is a sensor incorporated IC tag integrated with or electrically connected with a sensor for detecting an object to be detected of the wheel support bearing device, and is inputted with a detection signal of the sensor through an input channel separate from a contactless communicating channel, and wherein the sensor incorporated IC tag is provided with an electric power supply circuit utilizing an electric power, acquired through a contactless communication of the IC tag as an electric drive power, and a sensor input processing module operable, when an electric operating power of a value higher than a predetermined value is available, to capture an input of the sensor to perform a predetermined storage process and wherein an electric power supply module for supplying an electric power to the IC tag through the contactless communication at all times or when a predetermined condition is satisfied is provided in the wheel support bearing device or an automotive vehicle, on which the wheel support bearing device is mounted.