International Transport Systems Co. manufactures gearboxes for belt conveyor drives with belt 400, 650, 800, 1000, 1200, 1400, 1600, 2000-2400 mm, as well as specially designed gearboxes. Gearboxes transduce the power 15:500 KWt, with belt speed from 3,factured with one or two motors with one or two outer shafts Toothed transmission of gearboxes are made of alloyed steel with Novikov clutch, which provides long-term operation. Frame details are of welded design and of minimum metal consumption. Calculated life service of gearboxes is 50 000 hours, which is higher the life service of similar gearboxes produced by other plants. Gearboxes manufactured in monoblock and module scheme have special design -7i??cations of heavy-duty c