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Your benefits

Low space requirement
due to a slim and compact design.

Wide range of applications
thanks to 11 frame sizes (27 to 157) and numerous variants for very different requirements.

Always a powerful performance
even in reduced backlash design with output torques from 200 Nm to 18,000 Nm.

R series helical gear units
F series parallel-shaft helical gear units: perfectly matched to limited installation space.

One of our best gear units for limited installation space. A wide range of mounting positions and variants enable a broad spectrum of applications even under difficult installation conditions – without having to compromise on the performance. And what applies to many of our gear units: long operating lives without maintenance and wear-free gearing with a high fatigue strength.

With a high torque rating from 130 Nm to 20,000 Nm, our parallel-shaft helical gear units offer great performance in many conveying and processing applications.

You can choose from foot-, flange- or shaft-mounted options. For precise positioning tasks, our parallel-shaft helical gear units are available with reduced backlash.

NEW: Higher torques for even more power

The parallel-shaft helical gear units of sizes 37, 47, 57 and 67 achieve an increase in torques of up to + 15%.

Higher permitted maximum torques due to a comprehensive overhaul of the gearing, adjustments to the bearing concept and new calculation methods. The increased torques were verified in very intensive test procedures and achieve an increase of up to + 15% compared to the previously permitted torques.

Thanks to the increased torques, you can even make a size leap downwards in some cases when selecting the gear unit size.


Only half the solution without a motor? Then use our modular concept and combine the gear units of the F series with an AC motor to a F..DR.. parallel-shaft gearmotor, or with a servomotor to an F..CMP parallel-shaft helical servo gearmotor of your choice. Or simply choose the separate AC motor or servomotor that meets your requirements.

Contact form Worldwide locations Locations in Finland Click here and start putting your gearmotor together right away TorqLOC® hollow shaft mounting system Adapters Surface and corrosion protection Extended Warranty Lubricants DUO diagnostic unit Just a few clicks to a product recommendation Learn more about the advantages of ECO2 drives
  • Slim design for limited installation space
  • Also available with reduced backlash
  • Available variants:
    • Foot- or flange-mounted
    • B5 or B14 flange-mounted
    • Solid shaft or hollow shaft
    • Hollow shaft with keyed connection, shrink disk, splined hollow shaft, or TorqLOC®
F series / sizes 27 / 37 / 47 / 57 / 67 / 77 / 87 / 97 / 107 / 127 / 157
Gear unit ratio i 3.77 – 281.71
Double gear unit reduction ratio i 87 – 31 434
Max. output torque Nm 130 – 20 000*
Motor power range (Mounting via AM motor adapter) kW 0.12 – 200

*Also with reduced backlash

  • Conveyor applications
  • Chain conveyors
  • Process applications
  • Presses
  • Extruders
  • Screw conveyors
  • Gantry cranes