Grease composition and rolling bearing
US12203046B2 · kind B2 · utility
0Cited by
2References
11Claims
0Family size
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Key dates
| Filing date | Jul 5, 2021 |
| Grant date | Jan 21, 2025 |
| Priority date | — |
| Expiry date | Jul 5, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C33/7856
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a grease composition including: a base oil; a thickener; a rust inhibitor; and an extreme pressure agent, in which the rust inhibitor includes, with respect to a total mass of the grease composition: 0.10 mass % to 10.00 mass % of a calcium sulfonate; 0.20 mass % to 10.00 mass % of a zinc sulfonate; and 0.10 mass % to 10.00 mass % of a zinc carboxylate, and the extreme pressure agent includes, with respect to the total mass of the grease composition, 2.00 mass % to 14.00 mass % of a zinc dialkyldithiophosphate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.