GREASE COMPOSITION

The invention provides a grease composition for rolling bearings of automotive electrical equipment or automotive auxiliaries, where a base oil contains as an essential component an alkyldiphenyl ether oil; a thickener is a diurea compound represented by the following formula (1): (wherein R 2 is a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IMAI Yutaka, AIDA Ryo
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:The invention provides a grease composition for rolling bearings of automotive electrical equipment or automotive auxiliaries, where a base oil contains as an essential component an alkyldiphenyl ether oil; a thickener is a diurea compound represented by the following formula (1): (wherein R 2 is a diphenylmethane group; and R 1 and R 3 , which may be the same or different represent an aromatic hydrocarbon group having 6 to 12 carbon atoms); and an anti-flaking additive that contains an organic sulfonate rust inhibitor and a load carrying additive. The grease composition of the invention can extend the bearing lubrication life even at elevated temperatures and exhibit excellent anti-flaking properties, so that the grease composition can be enclosed in the rolling bearings of automotive electrical equipment or automotive auxiliaries.