Method of manufacturing dynamic pressure bearing device, and dynamic pressure bearing device
US6733180B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | May 11, 2004 |
| Priority date | — |
| Expiry date | Oct 1, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/107
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
To provide a manufacturing method of a dynamic pressure bearing device and a dynamic pressure bearing device to inject a proper amount of lubricating oil to a bearing unit by using a simple process without leaving air bubbles in the bearing unit. The bearing unit is exposed in an atmosphere of reduced pressure such as in a vacuum chamber or the like to evacuate air in a gap between a shaft body and a bearing. The proper amount of lubricating oil is dropped to an open end of the gap of the bearing unit by using a dispenser. The bearing unit is released to an atmospheric air to fill the lubricating oil into a gap of the bearing unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.