Patent ID: 9228611
Filing Date: 2016-01-05
CPC Classification: F04B,F16C,F16N

Claim Text:
1. A rolling bearing device comprising: a first bearing ring having an inner periphery raceway surface; a second bearing ring having an outer periphery raceway surface; a plurality of rolling elements disposed between the inner periphery raceway surface of the first bearing ring and the outer periphery raceway surface of the second bearing ring; and a lubricant supply unit having at least a tank and a pump that supplies lubricant to at least one of the inner periphery raceway surface of the first bearing ring, the outer periphery raceway surface of the second bearing ring, and the rolling elements, wherein the lubricant supply unit has one or more electrodes to which electric power is supplied from an external power source by being in contact with external electrode, and a part of the lubricant supply unit is fixed to one member out of the first bearing ring and the second bearing ring, and each of the one or more electrodes is fixed to the one member or the lubricant supply unit, in a state where each of the one or more electrodes is exposed on an outside of the one member or the lubricant supply unit.