Variable speed belt gear motors are space-saving, continuously adjustable drives. In the standard edition the central adjustment is manufactured with a hands wheel. Unlike inverter procedure the electric motor power remains continuous and the torque raises if the acceleration of the motor drops.

The variable speed gear unit housing has a confirmed symmetrical design. The adjusting pulleys have got a wedge designed symmetrical cross section with low mass. The form of the pulleys guarantees uniform flank pressure and therefore high power transmission, actually at high belt rate.

The result is optimal control behaviour with uniform distribution of forces and Variable Speed Belt Gear Motors Speed Reducer Gearbox minimal energy consumption.