Metro car bogie mod.68-797 (Type 3 and Type 4, Type 7)


The bogie with pivot type frame of the spindle type is intended for installation under the subway cars of the underground with a track of 1520 mm. Type 7 carts have asynchronous traction motors.

TECHNICAL CHARACTERISRICS
Name of parameter and sizeUnitsNormative value

Weight of trolleys:
type 3 / type 4

type 7

kg


7 405 / 7 410

7 140

Trolley base mm 2 100
Track width mm 1 520
Construction speed km/h 90
Cross base for spring sets:
- axle (primary) suspension
- central (secondary) suspension
mm
2 036
1 474
Maximum wheel load kN (tf) 147 (15)
Maximum load on the cart kN (tf) 200,5 (20,46)
Wheel diameter in a circle of skating mm 785±5
Diameter difference in a circle of skating, no more:
- on one wheel pair
- on one trolley
mm
0,5
1
Trolley frame service life not less than years 20

Overall dimensions, no more:
- length (piping) 
- width (on conduits)

- trolley height under body tare, equal to 9 tf (88.2 kN)

mm


4 600
2 600

962±15\18

 

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