The present disclosure relates to a speed reducer, and more particularly, to a speed reducer for power transmission of a parallel drive system for a variable capacity electric commercial vehicle.
A speed reducer for power transmission of a parallel drive system for a variable capacity electric commercial vehicle according to an embodiment of the present disclosure is disposed inside a housing, a first motor including a first rotor shaft for transmitting rotational force, and an inside of the housing A second motor disposed in parallel with the first motor disposed in and including a second rotor shaft for transmitting rotational force, a first gear coupled to the first rotor shaft, and a second coupled to the second rotor shaft It characterized in that it comprises a gear, a third gear that rotates by meshing with the first and second gears by rotation of the first and second motors, and a shaft shaft that transmits power by rotation of the third gear.