Hybrid roller bearing, particularly for refrigerant compressor
US10280973B1 · kind B1 · utility
2Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Dec 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/42
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A hybrid roller bearing having an inner raceway and an outer raceway and a plurality of rollers arranged therebetween. The inner raceway and the outer raceway are made from bearing steel and have a first surface RMS roughness Rq1. At least one roller is made from a ceramic material and has at least at the roller raceway a second surface RMS roughness Rq2. The roughness of the raceways Rq1 is 1.2 to 4 times higher than the roughness Rq2 of the at least one roller, as well as a refrigerant compressor with such a hybrid roller bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.