A grease composition includes a base oil, a thickener, and an extreme pressure additive. The base oil contains trimellitate ester and poly-α-olefin. A proportion of the trimellitate ester to a total amount of the trimellitate ester and the poly-α-olefin is 10.0 mass% or more and 60.0 mass% or less. The thickener contains lithium 12-hydroxystearate and lithium stearate. A proportion of the lithium 12-hydroxystearate to a total amount of the lithium 12-hydroxystearate and the lithium stearate is 5.0 mass% or more and 95.0 mass% or less. The extreme pressure additive contains molybdenum dialkyl dithiocarbamate. A proportion of the molybdenum dialkyl dithiocarbamate to a total amount of the trimellitate ester, the poly-α-olefin, the lithium 12-hydroxystearate, the lithium stearate, and the molybdenum dialkyl dithiocarbamate is 0.6 mass% or more and 16.0 mass% or less.


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    Title :

    GREASE COMPOSITION AND STEERING GEAR DEVICE


    Additional title:

    SCHMIERFETTZUSAMMENSETZUNG UND LENKGETRIEBEVORRICHTUNG
    COMPOSITION DE GRAISSE, ET DISPOSITIF DE BOÎTIER DE DIRECTION


    Contributors:

    Publication date :

    2025-05-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C10M LUBRICATING COMPOSITIONS , Schmiermittelzusammensetzungen / B62D MOTOR VEHICLES , Motorfahrzeuge / C10N Index-Schema nur im Zusammenhang mit Unterklasse C10M zu benutzen , INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M



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