A gearset includes a gearset housing, a drive shaft, and a radial fan fixed to the drive shaft. Disposed in surrounding relationship to the radial fan is an air-guiding cover which includes a gearset housing section to at least partially cover the gearset housing, a cylindrical section adjoining the gearset housing section and configured to receive an attachment for securement to the drive shaft, and a conical section adjoining the cylindrical section. The conical section of the air-guiding cover is disposed in surrounding relationship to the radial fan directly and without any dead space.