Fluid dynamic bearing device and motor equipped with the same
US7556433B2 · kind B2 · utility
9Cited by
8References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 6, 2006 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Jan 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49659
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid dynamic bearing device is mainly composed of a housing, a bearing sleeve, and a rotary member. The housing is formed by a side portion formed through injection molding of a resin material, and a bottom member fixed to a fixing portion provided in the inner periphery at one axial end of the side portion and adapted to close an opening at one axial end of the side portion. The fixing portion is a molding surface formed through solidification, in conformity with the inner surface of the mold, of the resin injected by the injection molding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.