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Your benefits

Full power rating
is what our variable speed gearmotors deliver right from the start - thanks to their increased starting torque and high overhung loads.

Simple speed adjustment
is child's play with the mechanical variable speed gearmotors: you can adjust the speed steplessly by handwheel or remote control.

Rotational speeds of up to 45 kW can be easily adjusted mechanically

Mechanical variable speed gearmotors are simple but robust drive components that represent a cost-effective alternative in many conveyor and process engineering applications. This is because you simply carry out the infinitely variable speed control yourself: mechanically by handwheel or remote setting. Completely without cost-intensive control cabinets and frequency inverters.

There are two series to choose from: VARIBLOC®the wide V-belt series delivers power ratings of up to 45 kW and rotational speed adjustment ranges of 1:4, 1:6 and 1:8. The friction disk variant VARIMOT® friction disc variant is suitable for power ratings up to 2.2 kW and a rotational speed adjustment range of 1:5.
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TorqLOC® hollow shaft mounting system Adapters Extended Warranty Surface and corrosion protection Lubricants DUO diagnostic unit Brakes BE.. Encoders Diagnostics units option /DUE Oil seals Other additional features
  • Power range up to 45 kW
  • Speed setting ranges 1:4, 1:6 and 1:8
  • U- or Z-shaped power flow
  • Numerous combination options with reduction gearboxes
  • for a wide range of designs
  • For simple adaptation to a wide range of machine designs
  • Can also be used directly as a machine drive in foot or flange-mounted design without reduction gears
  • Can be combined with the DR.. series motors
  • Flexible due to fine gear ratio ranges of the reduction gears for each size
  • Simple operation via handwheel or remote control
VARIBLOC®
Size 		max. motor power 4-pole Possible force flow max. setting range for design
DRS..
kW 		DRE..
kW 		DRN..
kW 		aerated NO contact
VU / VZ 01 0.55 - 0.75 U + Z 1:6 -
VU / VZ 11 1.1 0.75 1.5 U + Z 1:8 1:6
VU / VZ 21 3 2.2 3 U + Z 1:8 1:6
VU / VZ 31 5.5 4 4 U + Z 1:8 1:6
VU / VZ 41 11 9.2 - U + Z 1:6 1:4
VU 51 22 22 - only U 1:6 -
VU 6 45 45 - only U 1:4 -
  • Simple conveying systems
  • pumps
  • Screw conveyors
  • Building materials industry
  • Special machine construction
  • Power range up to 2.2 kW
  • Speed setting range 1:5
  • The contact pressure between the drive pulley and friction ring required for torque transmission is self-adjusting
  • Speed adjustment can even be carried out at idle state
  • can also be used directly as a machine drive in foot or flange-mounted design without reduction gears
  • Can be combined with the DR.. series motors
  • Flexible due to fine gear ratio ranges of the reduction gears for each size
  • Simple operation via 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
  • Building materials industry
  • Special machine construction