The invention discloses a transmission assembly for a bicycle and an electric bicycle. One end of a transmission shaft is connected with a front driven gear in a fastening manner through a spline, a first locking bolt and a first gasket ring, and the other end of the transmission shaft is in fastening connection with a rear driving gear through a spline, a spring, a second gasket ring and a second locking bolt; a front protection cover and a rear protection cover are arranged at the two ends of a protection tube arranged on the transmission shaft in a sleeving manner respectively; the front protection cover is connected with a front box body through a connecting bolt, and a middle shaft is arranged in the front box body through a third bearing; the middle shaft is fixedly sleeved with a front driving gear; the front driven gear of the transmission shaft is mounted in the front box body through a first bearing, and is meshed with a front driving gear; and the rear protection cover is connected with a rear box body through a connecting bolt, and the rear driving gear of the transmission shaft is mounted in the rear box body through a second bearing. The transmission assembly is stable in transmission power, the waste rate of parts is reduced, the service life is prolonged, and the cost is reduced.


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    Title :

    Transmission assembly for bicycle and electric bicycle


    Contributors:

    Publication date :

    2015-08-26


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer



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