Linear guide
US6520680B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2001 |
| Grant date | Feb 18, 2003 |
| Priority date | — |
| Expiry date | Jul 13, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C29/0647
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a linear guide which includes a guide rail, a slider and a plurality of rolling elements. The guide rail has at its outer surfaces rolling element rolling grooves extending in the axial direction thereof. The slider is assembled to the guide rail and has rolling element rolling grooves opposing to the rolling element rolling grooves of the guide rail. The plurality of rolling elements are filled within rolling element rolling paths formed by both the rolling grooves so as to toll freely therein. At least a part of the rolling element rolling grooves of the guide rail and the slider has a surface having the average roughness Ra along the center line of 0.20 &mgr;m or less, to thereby provide a linear guide in which reduction of a sliding resistance and generation of powder due to the abrasion caused by the initial abrasion is hardly caused.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.