Biaxial cradle-free drive bogie mod. 68-7072 is intended for rolling under the electric train cars operating on the railways of 1520 mm gauge with a design speed of 160 - 200 km/h.
The bogie is equipped:
- wheel sets with axle boxes and wheel brake disks;
- coil springs of axle box (primary) spring suspension;
- pneumatic springs of the central (secondary) spring suspension;
- hydraulic vibration dampers (6 vertical, 2 horizontal, 2 from wobble);
- disc brake;
- torsion device;
- drives (electric motor, gearbox, coupling joints);
- an electronic system including sensors of the anti-union device, a heating control system for axle boxes and sensors of the КЛУБ-У system;
- wheel flange lubrication system;
- sand feed system in the zone of contact of the wheel with the rail.
TECHNICAL CHARACTERISTICS
- Mass, kg: 12 250
- Cross base of the bogie, mm: 2036
- Base, mm: 2800
- Continuous power of the traction motor, kW: 500 - 550
- Maximum static load from wheel set on rail, kN(tf): 201.1 (20.5)
- Design speed, km/h: 160 - 200