Rolling bearing
US9051653B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2011 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2206/04
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a rolling bearing in which the peeling resistances of a DLC film formed on raceway of inner and outer rings and a sliding surface of a cage are improved to allow the intrinsic properties of the DLC film to be displayed so that the rolling bearing is excellent in its resistance to seizing, wear, and corrosion. A rolling bearing (1) has an inner ring (2), an outer ring (3), a plurality of rolling elements (4), and a cage (5). A hard film (8) is formed on a curved surface such as a raceway (2a) of the inner ring (2), a raceway (3a) of the outer ring (3), and the like. The hard film (8) is composed of a foundation layer, composed mainly of Cr, which is formed directly on the curved surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.