BEARING DEVICE FOR WHEEL

摘要

[PROBLEMS] A bearing device for a wheel, which can be easily traced after it is shipped from a factory, in which a lot number and quantity of a product including the bearing device can be easily specified when inspection or replacement is required after the shipment, and whose quality control can be quickly and easily performed. [MEANS FOR SOLVING PROBLEMS] A bearing device for a wheel, having an outer ring member (3), an inner ring member (5) provided radially inside of and concentrically with the outer ring member (3), and rolling bodies (6) arranged between the outer ring member (3) and the inner ring member (5). An ICchip (20) is provided at the bearing device at a vehicle-outer-side end section or at a vehicle-inner-side end section.