Bearing with light weight metal and ceramic material
US7798724B2 · kind B2 · utility
6Cited by
14References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2005 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Apr 30, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49684
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A bearing includes an inner bearing ring on which a raceway is formed. The ring includes at least a first component of light metal material and at least a second component of fully dense ceramic material, where the first component and the second component are separate entities joined together, and where the second component forms at least part of the raceway. The first component includes two lightweight metal parts interconnected by a screw thread which can be tightened to induce compressive pre-stress in the second component to compensate for low tensile strength of the ceramic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.