These gearboxes are designed for a variety of industrial cases. The design solutions of the combination of the planetary and helical gears are protected by a patent. A combination of a planetary built into the housing of a gear reducer with parallel shafts is offered in five different sizes. The current version of the planetary combination built into the angle-gear reducer is in fiv sizes, but the development plan envisages eight sizes. Output hollow shafts are available as cylindric with feather keyhole, cylindric hollow shaft for shrink disc or splined shaft. The entry-level version enables the installation of IEC electric motors, hydraulic motors, hydraulic motors, elastic and hydrodynamic clutches, torque limiters and similar devices. Possible accessories: backstop device, brakes, lubrication systems and auxiliary cooling systems. For torques T2N=3.000 to 27.000Nm with combination of a gear reducer with parallel shafts and a planetary shaft and a planetary gear, and iN=do 2.000 and T2N= to 67.000Nm and iN= to 1.100 for angular gearboxes with builtin planetary gear.