Bearing unit
US5645355A · kind A · utility
16Cited by
2References
6Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jun 3, 1996 |
| Grant date | Jul 8, 1997 |
| Priority date | — |
| Expiry date | Jun 3, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S384/902
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing unit in which two oil sintered slide bearings are fitted in a bearing space of non-magnetic bearing housings to be spaced away from each other and a magnetic fluid is interposed between a rotary shaft and the oil sintered slide bearings to rotatably support the rotary shaft. The rotary shaft is made from a material having permeability, and a ring-shaped permanent magnet is fixedly provided between the two oil sintered slide bearings to be spaced therefrom. The magnetic fluid is held between the two oil sintered slide bearings to be circulated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.