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Helical gear units/helical gearmotors
Special Documentation
  Catalogs: Gearmotors
  Manuals: Gear Units and Gearmotors
  Catalogs: DR Gearmotor Catalog 2008
  Operating Instructions: R..7, F..7, K..7, S..7 Series Gear Units, Spiroplan®
All documentation and software for this product
Products
More efficiency in every situation
In six single-stage and fourteen two and three-stage sizes, the helical gearmotors from SEW-EURODRIVE ensure an optimum ratio between power and space requirements.

Your benefits:
The tried and tested modular concept and our strict quality criteria allow SEW-­EURODRIVE to provide a diverse range of torques and reduction ratios with ­incomparably finely tuned gradings. With this exceptional diversity, SEW-­EURODRIVE sets new standards in this field of drive engineering.

Available versions:

 
RX series (single-stage)
For high output speeds, the exclusively single-stage gear units RX57 to RX107 offer compact solutions for your system design.

Technical data
Gear unit reduction ratio
[i]
1.30 ... 8.65
Output torque
[Nm]
36 ... 830
Motor power range
[kW]
0.12 ... 45



 
R series (two and three stages)
The complete program of helical gearmotors ­provides the optimum size and power solution for every drive task. And for operators with a "weight-watching" issue, our multi-stage gear units provide something special: Due to their die-cast aluminum design, the R07, R17 and R27 models are three particularly efficient lightweights – ideal as satellite drives and for use in light machine constructions. Reduced backlash helical gear units are also ­available for particularly precise requirements.

Technical data
Gear unit reduction ratio
[i]
3.21 ... 289.74
Multi-stage gear unit reduction ratio
[i]
90 ... 27001
Output torque
[Nm]
31 ... 18000
Motor power range
[kW]
0.09 ... 160



 
RM series
RM gearmotors with extended output bearing hub are a special type of helical gear unit. They were designed especially for agitating applications and allow for high overhung and axial loads and bending moments. The remaining data corresponds to that of standard helical gearmotors.

Technical data
Gear unit reduction ratio
[i]
4.29 ... 289.74
Multi-stage gear unit reduction ratio
[i]
134 ... 27001
Output torque
[Nm]
270 ... 18000
Motor power range
[kW]
0.12 ... 160

 
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