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Your advantages

Low space requirement
thanks to the slim design and compact mounting position.

Wide range of applications
thanks to the 11 sizes 27 to 157 and their numerous designs for a wide range of requirements.

Always powerful
even in reduced backlash designs with output torques from 130 Nm to 20,000 Nm.

R series helical gearboxes

Parallel shaft gearbox series F: perfectly matched to confined spaces

One of our best gear units for confined spaces: the offset gearbox A wide range of mounting positions and designs enable a wide range of applications, even under difficult installation conditions. And all without affecting the power rating. And what applies to many of our gear units: Long maintenance-free service life and a gearing with a fatigue-resistant design that is wear-free.

With a high torque in the range from 130 Nm to 20 000 Nm our offset gearboxes in many conveyor and process engineering applications.

You can choose between foot, flange and shaft-mounted designs. For precise positioning tasks, our flat gears are available in a reduced backlash design.

NEW: Higher torques for even higher power ratings

The offset gearboxes in sizes 37, 47, 57 and 67 achieve an increase in torque of up to + 15 %.

Higher maximum torques are achieved through an extensive revision 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, in some cases you can even go down a size when selecting the gearbox size.


Only half the solution without a motor? Then use our modular system and combine the F series gear units with an AC motor to create a F..DR. gearmotor. or with a servomotor to create a F..CMP flat servo gearmotor of your choice. Or you can simply select the separate servo flat geared motor suitable for your requirements. AC motor or servomotor.

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Drive selection TorqLOC® hollow shaft mounting system Adapters Surface and corrosion protection Extended Warranty Lubricants DUO diagnostic unit
A product recommendation with just a few clicks Find out more about the advantages of ECO2 drives
  • Slim design for confined spaces
  • also in reduced backlash design
  • possible designs:
    • Foot or flange-mounted design
    • B5 or B14 flange-mounted design
    • Full wave or hollow shaft
    • Hollow shaft with keyway connection, shrink disc, 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
Gear unit ratio Double gearbox i 87 - 31 434
Max. output torque Nm 130 - 20 000*
Motor power range (attachment via motor adapter AM) kW 0.12 - 90

* also reduced backlash

  • Materials handling technology applications
  • Chain conveyors
  • Process engineering applications
  • Presses
  • extruders
  • Screw conveyors
  • Gantry cranes