Cylindrical coaxial gear motor. It usually has two or three stages and a range of gear ratios from 3 to 200. To transmit movement, it uses cylindrical helical wheels. They are usually mounted on feet or on a flange. Such a geared motor received its name “coaxial” due to the fact that the output shaft is on the same axis with the electric motor. The layout of a cylindrical coaxial gearmotor is similar to a planetary, wave and cycloid gearbox.an independent product made in the form of a unit consisting of a gearbox and an electric motor, connected by an intermediate coupling or without it. As an electric drive element, it is widely used in all areas of industry; Its advantages are high efficiency, ease of maintenance, compactness, and simplified installation. Depending on the type of transmission used, planetary, worm, cylindrical, wave, etc. are distinguished.