The provided ball bearing unit for supporting a wheel is equipped with: a bearing unit which has an outer race member, an inner race member, and multiple rolling bodies disposed therebetween in a freely rollable manner, wherein one of the outer race member and the inner race member is a stationary-side race member which does not rotate when in use, and the other is a rotating-side race member which rotates with the wheel; a power generator having a stator and a rotor, and generating electric power to be supplied to a sensor disposed on the wheel on the basis of relative rotation of the stator and the rotor; a battery for storing the electric power generated by the power generator; and a radio communication unit for radio communication of signals, including an output signal of the sensor, with an electronic device disposed on the vehicle side. The stator is supported on and fixed to the stationary-side race member, and the rotor, the battery, and the radio communication unit are supported on and fixed to the rotating-side race member.
ROLLING BEARING UNIT FOR SUPPORTING WHEEL
KUGELLAGEREINHEIT FÜR EIN STÜTZRAD
PALIER À ROULEMENT POUR LE SUPPORT DE ROUE
2018-10-17
Patent
Electronic Resource
English