Fluid dynamic bearing motor configured with an integrated counterplate to contain bearing fluid
US6900568B2 · kind B2 · utility
13Cited by
10References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2003 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | Dec 18, 2023 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2370/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A fluid dynamic bearing motor assembly is described. In one embodiment, the assembly includes a shaft, a sleeve configured to rotate about a rotational axis, and a counterplate attached to the sleeve. The counterplate includes a radial section and a axial section, which is attached to the radial section and partially defines a labyrinth to remove bearing fluid from a region between the shaft and the axial section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.