| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device which can simply supply lubricant not only to a rotation bearing part but also to straight line bearing part.SOLUTION: A bearing device comprises an inner member 2 to be fitted to a shaft 1 and an outer member 3 to be fitted to the inner member 2. Therein, a first rolling body arrangement part 5 is disposed between the inner member 2 and the outer member 3, a second rolling body arrangement part 6 is disposed between the shaft 1 and the inner member 2, a first oil feed hole 7 for feeding a lubricant to the first rolling body arrangement part 5 is disposed on the outer member 3, a second oil feed hole 8 for feeding lubricant to the second rolling body arrangement part 6 is disposed on the inner member 2, and checking means which is configured such that the lubricant fed from the first oil feed hole 7 is fed to the second rolling body arrangement part 6 when the first oil feed hole 7 and the second oil feed hole 8 are communicated with each other and checks that the first oil feed hole 7 and the second oil feed hole 8 are communicated with each other is provided. |
