| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel grease composition excellent in the flaking prevention performance and the heat-resistant performance in rolling movement, and a constant velocity joint. SOLUTION: This constant velocity joint grease comprises a base oil, a thickener, and an inorganic bismuth in an amount of 0.01-15 wt.% based on the entire grease, and the inorganic bismuth is at least one inorganic bismuth selected from a bismuth powder, bismuth sulfate, and bismuth trioxide; the base oil is composed of at least one oil selected from a PAO oil, a mineral oil, an ester oil, and an ether oil and has a kenematic viscosity at 40°C of 30-500 mm<SP>2</SP>/s; and the thickener is at least one compound selected from a urea compound and lithium soap. The constant velocity joint has the constant velocity joint grease sealed therein. COPYRIGHT: (C)2006,JPO&NCIPI |
