Adjustable speed belt gear motors are space-saving, continuously adjustable drives. In the typical version the central adjustment is manufactured with a hand wheel. Unlike inverter procedure the engine power remains constant and the torque increases if the quickness of the motor drops.

The variable speed gear unit housing has a tested symmetrical design. The adjusting pulleys have a wedge formed symmetrical cross section with low mass. The shape of the pulleys ensures uniform flank pressure and for that reason high power transmission, also at high belt velocity.

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