| 摘要 |
PROBLEM TO BE SOLVED: To provide a spindle device rotatable at high speed where a dmn value is equal to or higher than 1 million and having a favorable waterproof function.SOLUTION: A flinger 40 includes: a boss 41 fixed to a rotary shaft 11; a disk 42 extending outward in a diameter direction from the boss 41 and disposed facing in an axial direction through a slight gap related to an axial-direction front end surface 71 of a front side bearing outer ring press 12 constituting a housing H; and an annular part 43 extending in an axial direction from the disk 42 and disposed facing in the diameter direction through a slight gap related to an outer circumferential surface 75 of the front side bearing outer ring press 12. The annular part 43 is formed in such a tapered shape that thickness becomes thinner as it is separated from the disk 42 in the axial direction.SELECTED DRAWING: Figure 2 |
