COMPOSICAO LUBRIFICANTE E METODO DE LUBRIFICACAO DE TRANSMISSOES E CONJUNTOS DE ENGRENAGENS

This invention relates to lubricating compositions comprising: (A) a major amount of an oil of lubricating viscosity; (B) at least one borated overbased Group I or II metal salt of an organic acid; (C) at least one polysulfide-containing organic composition; and (D) at least one phosphorus-containin...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: JAMES J. SCHWIND
Format: Patent
Sprache:por
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Beschreibung
Zusammenfassung:This invention relates to lubricating compositions comprising: (A) a major amount of an oil of lubricating viscosity; (B) at least one borated overbased Group I or II metal salt of an organic acid; (C) at least one polysulfide-containing organic composition; and (D) at least one phosphorus-containing composition other than a zinc dithiophosphate. Lubricating compositions of the present invention have beneficial viscosity and friction characteristics required by a manual transmission as well as beneficial extreme pressure protection required for a gear assembly.