Recirculation ball-screw device
US6041672A · kind A · utility
2Cited by
4References
1Claims
0Family size
Inventor
Key dates
| Filing date | Jun 5, 1998 |
| Grant date | Mar 28, 2000 |
| Priority date | — |
| Expiry date | Jun 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19772
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A ball-screw device is provided that includes a bearing seat with an internal thread for receiving a screw rod with a plurality of balls therebetween. A guiding groove is formed on an outer surface of the bearing seat, and a screw hole is formed at each of the opposing ends of the guiding groove. Balls from within the bearing seat will pass through one through hole, travel along the guiding groove and return to the interior of the bearing seat through the other through hole, when the screw rod is rotated. By that arrangement, vibration of the bearing seat is avoided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.