We supply rings and accessories for transmissions, GMF and GP for various equipment, for assembly lines and for repairs: MTZ since 2000 (according to TU RB 100316761.456-2000); MZKT; OJSC AMKODOR; JSC “Petersburg Tractor Plant”; Vityaz Machine-Building Company JSC; OJSC “Mytishchi Machine Building Plant”; Kaluga plant “Remputmash”; JSC “Kaluga plant of track machines and hydraulic drives”, tractor T150 of the Kharkov Tractor Plant and a number of other enterprises in Belarus and Russia. We produce rings from special cast iron for sealing the shafts of transmissions, hydromechanical gearboxes, hydraulic transmissions (UGP 230, UGP 1000, GP 300, etc.). We offer rings with different types of locks – straight, angle, labyrinth seals. Alloyed ductile iron or gray cast iron can be used upon customer’s request. For running-in rings we use tin coating, phosphating. To increase the wear resistance, we use the method of ion-plasma hardening. This method makes it possible to harden to a depth of 0.4 mm the working surface of rings made of ductile iron up to 800 HV, of gray cast iron – up to 550 HV. To work in tandem with our rings, we supply, offer and recommend using bushings made of special cast irons of similar brands.