Shell-type needle bearing and cross-type universal joint
US8939844B2 · kind B2 · utility
2Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/86
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Cross-type universal joint and a shell-type needle bearing that is used therein. The portions on the outer surface of the shell-type outer ring for which there is a possibility of coming in sliding contact with the tip end edges of at least two seal lips of a plurality of seal lips of a seal ring are selectively covered with a corrosion resistant coating. Preferably, the entire outer surface of the shell-type outer ring is covered by a chemically treated film having anti-corrosion properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.