Angular ball bearing and rolling bearing
US7287910B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2002 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Jul 26, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2217/0456
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rolling bearing is constructed so that, even though adapted for seals, strength of the bearing rings and reduction of the front width will not occur. Also dimensions equivalent to a non-sealed type bearing can be achieved. Rolling elements are disposed between an inner ring and an outer ring with seals provided. One seal is fitted in a pressed state on a peripheral surface portion of a cylindrical surface forming a counterbore of the outer ring. By pressing, the seal is mounted without forming a slot. The other seal is fitted in a slot. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.