VARIBLOC® and VARIMOT® Variable-Speed Gearmotors

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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 hand-wheel 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.

VARIBLOC® wide V-belt variable-speed gearmotors

Features

  • 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

Technical Data

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

Areas of Application

  • Simple conveyor systems
  • Pumps
  • Screw conveyors
  • Construction materials industry
  • Special machine design

VARIMOT® friction disk variable-speed gearmotors

Features

  • 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 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

Technical Data

VARIMOT®
Size
Max. motor power
kW
Max. setting range
D16 1.1 1:5
D26 2.2 1:5

Areas of Application

  • Simple conveyor systems

  • Pumps

  • Agitators

  • Construction materials industry

  • Special machine design

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