Ballscrew with an integral high-efficiency thrust bearing
US8015889B2 · kind B2 · utility
6Cited by
37References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2006 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Feb 26, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19749
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A linear actuator includes a thrust bearing that is integral to the actuation member. The actuator includes a translation member and an actuation member. The actuation member is responsive to a drive force to rotate. The translation member is configured to translate in response to actuation member. The thrust bearing is coupled to the actuation member and includes an inner race, an outer race, and a plurality of balls. The thrust bearing is configured as a zero lead ballscrew, with the inner race integrally formed on the actuation member, and the plurality of balls disposed between the inner and outer races.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.