Fluid dynamic bearing device and assembling method thereof
US8454239B2 · kind B2 · utility
4Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2008 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Jun 14, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49639
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A first axial gap (L1) is formed between a seal portion (9) and a sleeve portion (8). With this, it is possible to set a moving amount of a shaft member (2) in an axial direction with high accuracy irrespective of accuracy of members such as the sleeve portion (8).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.