| abstract |
To provide a grease composition capable of expressing a low coefficient of friction in a wide temperature range from a low temperature range to a high temperature range. A grease composition includes a base oil, at least one metal selected from the group consisting of lithium, calcium, magnesium, and aluminum, and a group consisting of a hydroxyl group, a carboxyl group, and a carboxylate metal base in the molecular structure. A metal soap thickener comprising at least one fatty acid selected from at least one selected from the group consisting of at least one selected from the group consisting of oxides, carbides and diamonds. [Selection figure] None |