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Your benefits

Full power
provides our gearmotors right from the start thanks to their increased starting torque and the large overhung loads permitted.

Easy to set the speed
with the mechanical variable-speed gearmotors: You adjust the speed infinitely variably using a handwheel or remote control.

Speeds of up to 45 kW can be easily adjusted mechanically

Mechanical variable-speed gearmotors are simple yet robust drive components that represent an inexpensive alternative in many materials handling and process engineering applications. This is because you control the speed infinitely variably yourself: mechanically using a handwheel or via remote control. The process does not involve any costly control cabinets or frequency inverters at all.

There are two series to choose from: VARIBLOC®, the wide V-belt series, provides power ratings up to 45 kW and the speed setting ranges 1:4, 1:6 and 1:8. The VARIMOT® friction disk variant is suitable for power ratings of up to 2.2 kW and for the speed setting range 1:5.
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  • Power range up to 45 kW
  • Speed setting ranges: 1:4, 1:6 and 1:8
  • U-shaped or Z-shaped power flow
  • Numerous possible combinations with reduction gear units
  • For numerous designs
  • For easy adaptation to the most diverse machine designs
  • The foot- and flange-mounted designs can also be used to power machines directly without a reduction gear unit
  • Can be combined with motors from the modular system so that they meet the requirements of the efficiency classes IE1 and IE2
  • Flexible due to finely calibrated gear ratio ranges of the reduction gear units per size
  • Very easy to operate using a handwheel or remote control
VARIBLOC®
Size 		Max. motor power 4-pole Possible power flow Max. setting range for design version
IE1
kW 		IE2
kW 		Ventilated Non-ventilated
VU / VZ 01 0.55 – U + Z 1:6 –
VU / VZ 11 1.1 0.75 U + Z 1:8 1:6
VU / VZ 21 3 2.2 U + Z 1:8 1:6
VU / VZ 31 5.5 4 U + Z 1:8 1:6
VU / VZ 41 11 9.2 U + Z 1:6 1:4
VU 51 22 22 U only 1:6 –
VU 6 45 45 U only 1:4 –
  • Simple conveyor systems
  • Pumps
  • Screw conveyors
  • Construction materials industry
  • Special machine design
  • Power range up to 2.2 kW
  • Speed setting range 1:5
  • The contact pressure between the drive pulley and the friction ring required for torque transmission is set automatically
  • The speed control can be adjusted even when the gearmotor is at a standstill
  • The foot- and flange-mounted designs can also be used to power machines directly without a reduction gear unit
  • Can be combined with motors from the modular system DR..
  • Flexible due to finely calibrated gear ratio ranges of the reduction gear units per size
  • Very easy to operate using a handwheel or remote control
VARIMOT®
Size 		Max. motor power
kW 		Max. setting range
D16 1.1 1:5
D26 2.2 1:5
  • Simple conveyor systems
  • Pumps
  • Agitators
  • Construction materials industry
  • Special machine design