| 发明名称 | Pivot assembly bearing and hard disk drive device | ||
| 摘要 | A pivot assembly bearing includes a shaft, a sleeve provided coaxially with the shaft, and a pair of rolling bearings arranged to be separated from each other in an axial direction between the shaft and the sleeve. The sleeve includes a ventilation path configured to communicate a region surrounded by the shaft, the pair of rolling bearings, and the sleeve with the outside of the sleeve. | ||
| 申请公布号 | US9542964(B2) | 申请公布日期 | 2017.01.10 |
| 申请号 | US201514924268 | 申请日期 | 2015.10.27 |
| 申请人 | MINEBEA CO., LTD. | 发明人 | Kaneko Atsushi;Tsuchiya Kunihiro |
| 分类号 | F16C21/00;G11B5/48;F16C33/76;F16C37/00 | 主分类号 | F16C21/00 |
| 代理机构 | Oliff PLC | 代理人 | Oliff PLC |
| 主权项 | 1. A pivot assembly bearing comprising: a shaft; a sleeve provided coaxially with the shaft; and a pair of rolling bearings arranged to be separated from each other in an axial direction between the shaft and the sleeve, wherein the sleeve includes a ventilation path configured to communicate a region surrounded by the shaft, the pair of rolling bearings and the sleeve with outside of the sleeve, the ventilation path includes at least one through hole provided in a peripheral wall of the sleeve, and a communication path configured to communicate at least one end of the sleeve with the through hole is provided at an outer peripheral surface of the sleeve. | ||
| 地址 | Kitasaku-gun JP | ||