Grease composition for constant velocity joint
US6355602B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jun 29, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2300/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A grease composition for constant velocity joints comprises the following components: (a) a base oil; (b) a diurea type thickening agent represented by the following formula (1):R1NH—CO—NH—C6H4—p—CH2—C6H4—p—NH—CO—NHR2  (1)(in the formula (1), R1 and R2 may be the same or different from one another and each represents an aryl group or a cycloalkyl group having 6 or 7 carbon atoms); (c) a molybdenum sulfurized dialkyl dithiocarbamate; (d) a molybdenum sulfurized dialkyl dithiophosphate; (e) molybdenum disulfide; (f) a calcium salt of an alkylaromatic sulfonic acid; and (g) a phosphorus free-and sulfur-containing extreme-pressure additive. The grease composition for constant velocity joints according to the present invention has a high ability of reducing the induced thrust force and is excellent in the durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.