If we want to explain the Helical Gearbox or direct shaft gearbox in simple language, it is a device that includes several pairs of gears inside the shell and these gears are helical or spiral gears and rolling bearings on both sides of the bags. Are. Usually, the gears for these gearboxes are designed in spiral or simple form. The angle of the kits is diagonal with the axis so that more than one gear is engaged at any moment. This process causes the pressure to be distributed among all the gears and the device does not suffer from excessive pressure. Finally, the depreciation of the device is reduced. In these gearboxes, an output shaft is located precisely at the end of the electric motor.