Coupled circulation tube for ball screw unit
US6851722B2 · kind B2 · utility
13Cited by
15References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2001 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Oct 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/19772
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A coupled circulation tube for a ball screw unit. The tube is formed on a planar surface at one side of the ball screw bearing, each tube joined to two circulation holes. Each circulation tube is formed by coupling two symmetrical rigid metallic half tubes at recessed grooves and flanges interposedly arrayed one after another longitudinally along the wall of each half tube to form a resultant U shaped arcuate elbow tube for ball circulation such that it is firmly constructed with a desired toughness free from loosening, cracking or deforming by constant collision and abrasion of the rolling balls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.