| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing device which includes an air oil lubricating function, is simple in structure, small in leakage of an air oil, can reduce the usage of air and a lubricating oil, and also can reduce noise. SOLUTION: This rolling bearing device includes a rolling bearing 1 where a rolling element 4 is disposed between respective rolling surfaces 2a and 3a of an inner ring 2 and an outer ring 3. In the inner ring 2 and the outer ring 3 as bearing rings, the outer ring 3 serves as a fixed side bearing ring. A ring seat 7 is provided in contact with the end surface of the outer ring 3. On this ring seat 7, an air oil supplying ring seat side lubricating oil supply hole 10 with which the outer peripheral surface and end surface opposite to the outer ring 3 communicate is provided. Further, on the outer ring 3, an air oil supplying bearing ring side lubricating oil supply hole 11 which communicates the end surface opposite to the outer ring seat 7 and the inner peripheral surface with each other is provided. The end surface side opening 10a on the ring seat side lubricating oil supply hole 10 and the end surface side opening 11a on the bearing ring side lubricating oil supply hole 11 are communicated with each other. COPYRIGHT: (C)2011,JPO&INPIT
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