| 摘要 |
PROBLEM TO BE SOLVED: To prevent self-excited vibration in a radial bearing wherein a bearing load is changed from a low load to a high load. SOLUTION: Radial bearings 13, 14, 16, 17 have two-divided upper half bearings 3a and lower half bearings 3b. Resinous material 8 such as PEEK is laid on inner peripheral surfaces of the upper half bearing and the lower half bearing. The upper half bearing and the lower half bearing has a portion that is not laid by an angle ϕ from two-divided surface 9. |
