→ Cars Series 81-717.5M/714.5M


subway cars 81-717.5 M series (head coach) and 81-714.5 M (intermediate car) are the motor, all the major axis of the car. Vehicles, cars are made of Steel and have all-welded construction. The outer skin for extra body rigidity is made of corrugated steel sheets, have an increased body heat - and sound insulation. Wagons type M.714.5 81-717.5 M equipped with two ventilation systems - the natural supply and exhaust and forced manual.

The cars are equipped with traction

electric DC, designed to work in the traction mode and braking mode electrodynamic resistor with a speed of 90 km / h to 8 km / h On each car there are four DC traction motor - 117 DM with self venting, two on the cart, with a capacity of 114 kW each.

Carts wagons 81-717.5 81-714.5 M and M-axle, with the supporting-frame suspension traction motors and axle suspension gear. Bogie frame H-shaped form-welded, two-stage spring suspension. In the primary suspension kits are used in helical coil springs. Secondary suspension cradle type are also using a helical coil springs. In the secondary suspension system integrated hydraulic shock absorbers damping of vertical and horizontal vibrations.

main advantages: simplicity of design, reliability, use of known solutions.


Features 81-717.5M/714.5M types of cars


Tara

car, so

34/33, 5

length, mm.

19 210

Width, mm.

2712

Height, mm.

3650

Design speed, km / h

90

acceleration, m/s2

1,3

slowdown, m/s2

1,3

type brakes

electrodynamic

power traction motors, kW.

4h114

diameter wheels, mm.

780

capacity of the wagon at a density of 10 chel/m2, pers.

308/330

seating pieces.

40/44

Established

life, years.

31

Maximum static load on the gross wheelset on rails, no more t

15