VARIMOT® Variable Speed Gearmotor

Products

For simple, variable
speed applications up to 45 kW

Combining VARIBLOC®® and VARIMOT®® variable speed gear units
with all types of reduction gear units within the SEW‑EURODRIVE
modular concept creates variable speed drives with a low output
speed and high output torque. Combining variable speed gearmotors
with helical, parallel-shaft helical, helical-bevel and helical-worm
gear units has proven effective at low speeds.

Variable-speed gear units are available with
DRS.. and DRE.. motors. This means they meet the European requirements
on efficiency levels and nearly all international efficiency levels.

Your advantages:

  • Increased starting torque
  • Large permitted overhung loads of the reduction gear units
  • Large number of finely stepped gear ratios of the reduction
    gear unit, depending on size
  • Choice of manual or remote speed control
  • Easy operation
The foot- and flange-mounted versions can
also be used to power machines without a reduction gear unit.

Speed can be adjusted mechanically, e.g. with
a handwheel, or electromechanically using a servomotor.

VARIMOT® Variable Speed Gearmotor

 

VU/VZ
series
In the power range up
to 45 kW, the VU and VZ designs of the VARIBLOC®® wide
V-belt variable speed gearmotors are used. Typical speed setting ranges
are 1:4, 1:6 and 1:8. The U- or Z-shaped power flow and numerous
combination possibilities with reduction gear units mean that these
speed gearmotors can be supplied in a broad range of designs. They
can easily be tailored to the most diverse machine structures.

Technical data
VARIBLOC®®
Maximum motor power 4-pole [kW]
Possible power flow
Maximum setting range for version
IE1
IE2
Ventilated
Closed
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
nur U
1 : 6
VU 6
45
45
nur U
1 : 4
VARIMOT® Variable Speed Gearmotor

 

D
series
Friction disk variable
speed gearmotors VARIMOT®® The
D series is suited for power a power range up to 11 kW and speed
setting ranges 1:4 or 1:5. The contact pressure between the driving pulley
and the friction ring required for torque transmission is set automatically.
The speed can even be adjusted when the gearmotor is at standstill.

Technical data
VARIMOT®®
Maximum
motor power [kW]
Max.
setting range
D 16
1.1
1 : 5
D 26
2.2
1 : 5

 
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