| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact rolling bearing device which can certainly supply power to a pump and be easily attached.SOLUTION: A micro pump for supplying lubricant oil to a track groove 21 of an inner ring 2 is fixed to an outer ring 1. First and second diametrical separation electrodes 50 and 51 for supplying power from the outside are formed on the micro pump. Each of the first and second diametrical separation electrodes 50 and 51 is fixed on an outer surface of a tank standing still to the micro pump while exposed to the outside. The first diametrical separation electrode 50 is disposed at an interval from the second diametrical separation electrode 51. |
