A bicycle hub comprising a hub body, a cassette driver with a first end which has a stepped outer profile and a first bearing surface, a first sprag interfacing surface and a second bearing surface. The driver further comprises a support assembly, which may be a bearing assembly, which may be ball bearings. The hub further comprises a cylindrical sprag sleeve which is press fitted into the hub body. There is also a plurality of sprags, which may rotate with the driver while sliding relative to the sprag sleeve while the hub is in freewheeling mode. The space between the first sprag interfacing cylindrical surface and the second sprag interfacing cylindrical surface may be maintained constant and the sprags engagement delay may be less than one degree.


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    Title :

    Freewheel hub


    Contributors:

    Publication date :

    2019-10-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



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