| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device in which a grease discharge hole can be easily formed into a proper size, and which enables old grease to be surely discharged and collected and is excellent in lubricatability.SOLUTION: A bearing device 1 is provided which comprises: a pair of race rings 30, 20 being the inner ring 30 and the outer ring 20; a plurality of rolling elements 40 arranged in an annular space 11 between a pair of the race rings; and a plurality of seal members 50, 60 for sealing the annular space 11, and in which grease 12 as a lubricant is sealed into the annular space 11. A replenishment hole 24 communicating with the annular space 11, and replenishing the grease is formed in one of a pair of the race rings 30, 20, a discharge hole 54 for discharging the grease 12 is formed in at least one of the plurality of the seal members 50, 60, and the replenishment hole 24 and the discharge hole 54 are alternately formed in a circumferential direction.SELECTED DRAWING: Figure 1 |
