Gear shaft for accommodating thermal expansion and transmission system incorporating the same
US10526081B2 · kind B2 · utility
0Cited by
8References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2016 |
| Grant date | Jan 7, 2020 |
| Priority date | — |
| Expiry date | Jan 18, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S464/902
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gear shaft allows a ceramic bearing to be used in environments where gear steel is desirable for driving a gear. The gear shaft includes a gear region and a bearing region. A bearing can be disposed about the bearing region of the gear shaft. A gear can be disposed about the gear region of the gear shaft. The bearing includes a ceramic material. The gear region of the gear shaft includes gear steel, whereas the bearing region of the gear shaft includes a bearing-region material that has a coefficient of thermal expansion (CTE) that is close to the CTE of the ceramic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.