Spindle motor having variably grooved radial and thrust bearing with reduced groove angle near bearing entry
US7465098B2 · kind B2 · utility
4Cited by
5References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Feb 9, 2027 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing system having variably grooved radial and thrust bearing with reduced groove angle near bearing entry is described. In an embodiment, the bearing system includes a housing. The bearing system also includes a shaft centrally located in the housing. The bearing system additionally includes a rotor portion that is adapted to be rotated about the shaft and contained within the housing. The bearing further includes a variably angled groove disposed on an internal surface of the bearing system. The variably angled groove reduces ingestion of air in the bearing system during operation of the bearing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.