71-665
DESCRIPTION
Technical specification
MODEL ADVANTAGES
Innovative solutions – our bogie
The basis of the 71-665 tram is an innovative, axleless portal bogie that has no analogues in the Russian Federation. Due to this, a 100 per cent low floor of the tram is ensured, the width of the aisles in the over-bogie area is significantly expanded, which creates additional convenience for the transportation of passengers. This bogie implements the principle of a motor-wheel on the basis of liquid-cooled electric motors.
Applying of separate motors for each of the 4 wheels and the absence of transverse axles between them makes it possible to use the principle of an independent electric differential as independent control of the angular speed of rotation of each wheel separately. This principle can significantly reduce wheel surface wear and improve ride quality.