Rolling bearing
US5030017A · kind A · utility
34Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Jul 24, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S384/913
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A rolling bearing has races and a rolling element. At least one of the races and the rolling element is made of a carburized or carbonitrided alloy steel. The content of a fine carbide present in the surface layer of the one element of the rolling bearing is 20-50 vol %. The content of retained austenite in the surface layer is 10-25 vol %. The rolling bearing provides a long-life rolling bearing suitable for use in a transmission and engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.