FIELD: railway transport. SUBSTANCE: wheel pair is set in curves of small radius with a device constructed as curved bar 1 rigidly secured to cross-beam 2 of carriage frame 2, automatic coupler 3, and flexible- damping unit 4 which is connected to cross-beam 2 of the carriage frame through pivot 5 by its one end and with automatic coupler 3 by its other end. Flexible-damping unit 4 is provided with intermediate support 6 which is in movable contact with curved bar 1. The driving wheel pair, provided with mentioned device, turns it at entering the curved part through automatic coupler and similar device mounted on the second ( driving) wheel pair. EFFECT: improved design. 3 dwg
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