Traction drive rotary assembly and process for producing rolling element thereof
US6629906B1 · kind B1 · utility
22Cited by
9References
69Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2000 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jan 18, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T82/2522
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary assembly for traction drives, including a plurality of rolling elements having a rotation axis and traction contact surfaces around the rotation axis and associating with each other to transmit a motive power between the rolling elements via a traction oil film formed between the traction contact surfaces, in which at least one of the traction contact surfaces has a microstructure with irregularities which sizes are larger than a thickness of the traction oil film. The process for the traction contact surface is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.