Method for treating the surface of a machine element
US7389666B2 · kind B2 · utility
4Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 5, 2004 |
| Grant date | Jun 24, 2008 |
| Priority date | — |
| Expiry date | May 5, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/47
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for treating the surface of a machine element, such as the raceway and/or a rolling element of a rolling element bearing, comprising the steps of—subjecting the surface to a hard turning operation so as to obtain a specific roughness profile having a series of alternating ridges and grooves, —after the hard turning operation subjecting the surface to a ball calendering operation so as to flatten the ridges of the roughness profile whereby a Δq value smaller than 5° is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.