Metro car bogie mod. 68-7054

Two-axle trolley mod. 68-7054 is designed for rolling under subway cars with an asynchronous traction drive.

The trolley is equipped with:

wheelsets using double-row tapered roller bearings (TBU), brake disc and grounding device;
axle box (primary) spring suspension using cylindrical coil springs;
central (secondary) pneumatic spring suspension with the use of hydraulic dampers of vertical and horizontal vibrations;
disc brake with elements of an anti-union device;
drives (electric motor, gearbox, gear coupling - for a drive trolley);
an electronic system that includes sensors of the anti-union device and a control system for the heating of axlebox assemblies (at the request of the Customer);
system of automated metered fluid lubrication of wheel flanges type RAILJET.

TECHNICAL CHARACTERISTICS
Name of parameter and size	Units	Normative value
Cart weight: (drive / non-drive)	kg	No more 7300/5150
Trolley base	mm	2 100
Track width	mm	1 520
Dimension in accordance with GOST 23961	-	М
Construction speed	km/h	90 or 100 (optional)
Type of electric motor, power	kw	Переменного тока 150-180
The maximum gross load of the wheelset on the rails	kN (tf)	147 (15)
Maximum load on the cart	kN (tf)	215,8 (22)
Wheel diameter in a circle of skating	mm	860
The minimum radius of the curve that the carriage must travel on carts	m	60
The height of the cart under the wagon tare	mm	980±15
Assigned frame life	years	No less 40