Grease composition and grease-sealed bearing
AssigneeNtn Corporation
InventorTakayuki Kawamura
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Abstract
The present invention provides a grease composition (7) which has a low friction and a low viscosity and is durable at a high temperature and a grease-sealed bearing (1) in which the grease composition is enclosed. The grease composition contains base oil, a thickener, and an additive. The base oil contains an ionic liquid consisting of a cation component and an anion component. The additive contains a corrosion inhibitor such as nitrites, molybdates or dibasic acid salts. The thickener is fluorine resin such as polytetrafluoroethylene. The grease composition (7) is applied to a periphery of each rolling element (4) of the grease-sealed bearing (1).
Claims11
A grease composition comprising a base oil, a thickener, and an additive, wherein said base oil contains an ionic liquid consisting of a cation component and an anion component;
- and said additive contains a corrosion inhibitor.
Dependencies are inferred from the claim text.