| 发明名称 |
LUBRICATING OIL FOR FLUID DYNAMIC BEARING AND SPINDLE MOTOR EQUIPPED WITH THE LUBRICATING OIL |
| 摘要 |
The invention provides a lubricating oil for fluid dynamic bearing including as a base oil a monoester oil free of unsaturated bond, and having an absolute viscosity of 2.0 to 3.0 mPa·s at 100° C. a viscosity index of 130 or more and a pour point of −20° C. or less. |
| 申请公布号 |
US2016319215(A1) |
申请公布日期 |
2016.11.03 |
| 申请号 |
US201615140571 |
申请日期 |
2016.04.28 |
| 申请人 |
KYODO YUSHI CO., LTD. ;NIDEC CORPORATION |
发明人 |
HIROOKA Iwaki;OE Takayuki;TSUBATA Sayuri;HAGIWARA Yuji |
| 分类号 |
C10M169/04;C10M133/12;H02K7/08;C10M129/76 |
主分类号 |
C10M169/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A lubricating oil for fluid dynamic bearing comprising as a base oil a monoester oil free of unsaturated bond, and having an absolute viscosity of 2.0 to 3.0 mPa·s at 100° C., a viscosity index of 130 or more and a pour point of −20° C. or less. |
| 地址 |
Fujisawa-shi JP |
