| abstract |
PROBLEM TO BE SOLVED: To provide a grease composition excellent in self-extinguishing property and load resistance, and a bearing and a gear enclosing the grease composition. In a grease composition containing a thickener, a base oil, and a load-bearing additive, the kinematic viscosity of the base oil at 40 ° C. is 300 mm 2 / s or more, and the phosphorus content concentration in the grease composition is 100 ppm. And a self-extinguishing grease composition having a fusion load of 1569 N or more in a four-ball type extreme pressure performance test, and a bearing and gears in which the same is enclosed. |