VARIMOT® Variable Speed GearmotorFor 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.
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 | – |
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