Nok Klueber Co., Ltd.

Nok Kluber Co., Ltd.

Tetsuhiro Miyamoto

Akihiko Shimura

Jiro Yurimoto

Toshio Nitta

Tetsuhiro Kitahara

A lubricant composition which is suitable as a fluorine oil, fluorine grease, and which is excellent in stabilizability, as well as a lubricant composition which is suitable as a fluorine oil, fluorine grease, and which has excellent rust prevention properties while keeping a heat resistance.

Lubricant composition

A grease composition, which comprises (A) a perfluoropolyether base oil, (B) a thickener, and (C) barium sulfate and/or antimony oxide, where 0.1-50% by weight of the component (B) and 1-25% by weight of the component (C) are contained, has a distinguished effect on improvements of abrasion resistance, friction characteristics, load durability, high-temperature durability and corrosion resistance without any deterioration of heat resistance by adding at least one of barium sulfate and antimony oxide, each having an average primary particle size of 0.1-20 &#x3bc;m, as component (C).

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Ibaraki, Japan

Tetsuhiro Miyamoto