| abstract |
The present invention provides a grease composition that can lubricate a rolling bearing system with extremely high efficiency due to a low coefficient of friction, and that can be manufactured inexpensively and easily, a manufacturing method thereof, and a use thereof. The grease composition of the present invention is mainly composed of a synthetic base oil (A) composed mainly of at least one alkyl aromatic compound (A1) and at least one fatty acid metal soap. And a solid lubricant (C) composed largely of nanoparticles of polytetrafluoroethylene in which at least 85% of the particles have a particle size of less than 1 micron. Optionally, other types of additives may be blended. [Selection figure] None |