A ball screw device includes: a screw shaft that has a first screw groove on an outer circumferential surface thereof; a cylindrical nut member that has a second screw groove on an inner circumferential surface thereof; plural rolling elements that can roll in a rolling path formed between the first screw groove and the second screw groove; and a lubricant applied to the rolling path, wherein the lubricant has a loss tangent tanδ larger than 0.11, which is measured by dynamic viscoelasticity measurement performed at a temperature of 25° C., an angular frequency of 10 rad/s, and an amount of strain of 0.01%.


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    Titel :

    BALL SCREW DEVICE, ELECTRIC POWER STEERING DEVICE, AND LUBRICANT FOR BALL SCREW DEVICE


    Beteiligte:
    IKEDA MASATO (Autor:in)

    Erscheinungsdatum :

    07.12.2023


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge / F16H Getriebe , GEARING



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