| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device equipped with an oil air supply mechanism capable of stably supplying oil particles for lubrication into a bearing. SOLUTION: The bearing device 10 is provided with a rolling bearing 11 lubricated by the oil, and an oil replenishment mechanism 18 for replenishing the oil into the rolling bearing 11. An inner ring 13 of the rolling bearing 11 is equipped with a tapered part 13c having an outer peripheral surface of which diameter is larger as going to the inner part of the rolling bearing 11, and a surface of the tapered part 13c comprises a material having oil repellency. COPYRIGHT: (C)2006,JPO&NCIPI
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