Ball screw device and linear motion device
US7146869B2 · kind B2 · utility
5Cited by
19References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2004 |
| Grant date | Dec 12, 2006 |
| Priority date | — |
| Expiry date | Oct 8, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19953
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A spacer between adjacent balls of, for example, a ball screw device or a linear motion device has an outer periphery that is concave such that the spacer is elastically deformed to be in substantially circular line contact with the adjacent balls and that a distance therebetween is variable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.