Cylindrical three-stage vertical crane reducer VK-350, VK-475, VK-550

Special crane cylindrical three-stage gearboxes type VK are designed for
use in drives of travelling mechanisms of hoisting cranes. Gearboxes
are designed for operation in macroclimatic regions with moderate (climatic version U).
U) , dry and humid tropical (T) climate, placement category 2 according to GOST 15150.
Cylindrical vertical crane gearboxes of VK type are designed for use in the following environments
conditions:
Shaft rotation in both directions;
Ambient temperature from -40°C to +50°C;
Non-aggressive environment, moderate dustiness and humidity;
Rotational speed of the high-speed shaft not exceeding 1000 rpm.
Unit designation
VK-350-31,5-23-U3, where
VK - gearbox type;
350 - total centre-to-centre distance;
31,5 - gear ratio;
23 - assembly scheme;
U3 - climatic execution and placement category according to GOST 15150-69.