Tapered roller bearing and power transmission device
US9249833B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2014 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Dec 9, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2361/61
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
In a tapered roller bearing, each of tapered rollers has a roller large end face, and a large rib end face of an inner ring. The large rib end face is formed at such a position that the large rib end face passes through the reference point, and a curvature radius of the large rib end face is set to a value within a range from 100% to 120% of a distance from a cone center of each of the tapered rollers to a prescribed reference point that is apart from the cone center along an inner ring raceway surface. The roller large end face is formed at such a position that the roller large end face passes through the reference point, and a curvature radius of the roller large end face is set to a value within a range from 80% to 100% of the distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.