Adjustable speed belt gear motors are space-saving, consistently adjustable drives. In the typical edition the central adjustment is manufactured with a hand wheel. Unlike inverter procedure the motor power remains constant and the torque improves if the acceleration of the electric motor drops.

The variable speed gear unit housing includes a verified symmetrical design. The adjusting pulleys have got a wedge shaped symmetrical cross section with low mass. The form of the pulleys guarantees Variable Speed Belt Gear Motors Speed Reducer Gearbox uniform flank pressure and therefore high power transmission, actually at high belt speed.

The result is optimal control behaviour with uniform distribution of forces and minimal energy consumption.