| 摘要 |
PROBLEM TO BE SOLVED: To provide a spindle bearing device that has an extremely simple structure and has stable spring elastic characteristics and buffering characteristics.SOLUTION: The present invention relates to a spindle bearing device 1 supporting a spindle, which includes a housing sleeve 3 for holding a neck part bearing unit 6 and a base part bearing unit 2. In the structure of the present invention, a bearing bush element 11 of the base part bearing unit 2 is pressed toward the neck part bearing unit 6 in an axial direction and disposed in the housing sleeve 3. In this case, the bearing bush element 11 is pressed by a first spring element 30 disposed between a bottom region 8 of the housing sleeve (3;103) and the bearing bush element 11 and a second spring element 22 disposed between the bearing bush element 11 and the neck part bearing unit 6. |
