Offset helical gear unit
Servo gear unit with a flat housing, large axial distance and high-quality helical gearing.

The slim black wonder: Offset helical gear unit.

The offset helical gear units of the F series have a lot to offer. They feature an extremely space-saving design, a large axial distance, high positioning accuracy, and high efficiency.

BENEFITS
Compact, space-saving and absolutely powerful

Due to the extremely flat housing of this series and the large axial distance, offset helical gear units are perfect for integration in applications that have very tight, difficult space constraints.

Another plus is that offset helical gear units are extremely fast and easy to assemble.

For high demands on efficiency, ruggedness and service life

Due to their design, offset helical gear units belong to the helical gear unit family. Therefore, their advantages clearly lie in their high efficiency.

The high-quality helical gearing of the spur-gears also guarantees exceptionally smooth operation.

Due to the nature of their rugged housing, offset helical gear units also run with extreme reliability and fail-safe performance. This also makes them suitable for continuous operation.

High positioning accuracy and backlash stability

To meet higher precision requirements, the F series offset helical gear units are available in two backlash classes. The hardened helical gearing ensures reliable backlash stability.

F gear units are either available as compact servo, Lean or asynchronous offset helical geared motors or they can be attached to all common synchronous servo motors by suitable adapters.

TECHNICAL DATA
F SERIES
Power density:
Price category:
  • Total ratio: 4.3 – 552
  • Allowed acceleration torque: 78 – 1100 Nm
  • Backlash: 5 – 11 arcmin
  • Efficiency: 96 – 97%

  Find your right fit!
FEATURES
F SERIES
  • Shaft:
    • Solid shaft with or without a feather key
    • Hollow shaft with keyway or shrink ring
  • Housing:
    • Pitch circle diameter with optional side fastening
    • Round or square flange
  • Backlash: Standard or class II
  • Mounting position: Any
  • Lubricants and maintenance:
    • Mineral lubricant CLP ISO VG 220 or synthetic lubricant CLP HC ISO VG 220
    • Lubricated for life and maintenance-free
  • Paint: RAL 9005 Jet black
  • Recommended motors for direct attachment: Particularly efficient in combination with STOBER motors of the EZ or LM series
APPLICATIONS
Welding lines
Industries and Applications

We get your visions moving – in various industries and markets worldwide.

Using a holistic approach for your specific task, we support you with precisely tailored solutions for drives and automation.

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Pallet transfer units
Industries and Applications

We get your visions moving – in various industries and markets worldwide.

Using a holistic approach for your specific task, we support you with precisely tailored solutions for drives and automation.

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Storage systems
Industries and Applications

We get your visions moving – in various industries and markets worldwide.

Using a holistic approach for your specific task, we support you with precisely tailored solutions for drives and automation.

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Horizontal machining units
Industries and Applications

We get your visions moving – in various industries and markets worldwide.

Using a holistic approach for your specific task, we support you with precisely tailored solutions for drives and automation.

Learn more
DOCUMENTS
TitleVersionIDDateLanguageSize / Type
Catalog STOBER compactCatalog STOBER compact 034426552021 06EN8.33 MB
TitleVersionIDDateLanguageSize / Type
Operating instructions Gear units and geared motors C_F_K_SOperating instructions Gear units and geared motors C_F_K_S 024430272019 01EN280.89 KB
Assembly instructions MGS motor adapter with curved-toothed couplingAssembly instructions MGS motor adapter with curved-toothed coupling 044407032009 05EN74.60 KB
Assembly instructions NEMA motor adapter with curved-toothed couplingAssembly instructions NEMA motor adapter with curved-toothed coupling 044415822009 05EN74.54 KB
Mounting instructions Hollow shafts with shrink disk for F   K   KL   KS   S gear unitsMounting instructions Hollow shafts with shrink disk for F K KL KS S gear units 104407112019 05EN107.08 KB
Assembly instructions Motor adapter with axially plug-in couplingAssembly instructions Motor adapter with axially plug-in coupling 084412472011 02EN85.98 KB
Mounting instructions Rubber buffers for the torque arm on the F gear unitMounting instructions Rubber buffers for the torque arm on the F gear unit 004426992014 10EN135.79 KB
Montageanleitung Motor an Servogetriebe mit Adapter ME_MEL_MF_MFL_ME10-ME50 G3 montierenMontageanleitung Motor an Servogetriebe mit Adapter ME_MEL_MF_MFL_ME10-ME50 G3 montieren 02443161EN122.72 KB
TitleVersionIDDateLanguageSize / Type
Spare parts list MGS motor adapter with curved-toothed coupling MQ10_MQ20_MQ30_MQ40_MQ50 _ MR10_MR20_MR30_MR40_MR50_MR60Spare parts list MGS motor adapter with curved-toothed coupling MQ10_MQ20_MQ30_MQ40_MQ50 _ MR10_MR20_MR30_MR40_MR50_MR60 024409502011 02EN65.38 KB
Spare parts list MGS motor adapter with curved-toothed coupling + backstop MR10_MR20Spare parts list MGS motor adapter with curved-toothed coupling + backstop MR10_MR20 024409512011 01EN45.11 KB
Spare parts list MGS motor adapter with curved-toothed coupling + backstop MR30_MR40_MR50_MR60Spare parts list MGS motor adapter with curved-toothed coupling + backstop MR30_MR40_MR50_MR60 024409522011 01EN45.94 KB
Spare parts list MGS motor adapter with curved-toothed coupling + speed measuring device MR10_MR20_MR30_MR40_MR50_MR60Spare parts list MGS motor adapter with curved-toothed coupling + speed measuring device MR10_MR20_MR30_MR40_MR50_MR60 014409532011 01EN56.01 KB
Spare parts list MGS motor adapter with KONAX slipping coupling MR20_MR30_MR40Spare parts list MGS motor adapter with KONAX slipping coupling MR20_MR30_MR40 024409562011 01EN45.19 KB
Spare parts list MGS motor adapter with notching coupling MR20_MR30_MR40Spare parts list MGS motor adapter with notching coupling MR20_MR30_MR40 034409582011 01EN45.50 KB
Spare parts list MGS motor adapter with notching coupling MR10Spare parts list MGS motor adapter with notching coupling MR10 024409592011 01EN46.65 KB
Spare parts list MGS motor adapter with notching coupling MR50Spare parts list MGS motor adapter with notching coupling MR50 024409602011 01EN45.88 KB
Spare parts list MGS motor adapter with notching coupling + switch-off MR20_MR30_MR40Spare parts list MGS motor adapter with notching coupling + switch-off MR20_MR30_MR40 034409612011 01EN48.11 KB
Spare parts list MGS motor adapter with notching coupling + switch-off MR10Spare parts list MGS motor adapter with notching coupling + switch-off MR10 024409622011 01EN48.82 KB
Spare parts list MGS motor adapter with notching coupling + switch-off MR50Spare parts list MGS motor adapter with notching coupling + switch-off MR50 024409632011 01EN48.24 KB
Spare parts list MGS motor adapter with overload disengagement coupling MR20 Spare parts list MGS motor adapter with overload disengagement coupling MR20 014409642011 01EN58.41 KB
Spare parts list MGS motor adapter with plug-in coupling BK5 MQ10_MQ20_MQ30Spare parts list MGS motor adapter with plug-in coupling BK5 MQ10_MQ20_MQ30 014409652011 01EN54.54 KB
Spare parts list Input shaft AW10_AW20_AW30_AW40_AW50_AW60Spare parts list Input shaft AW10_AW20_AW30_AW40_AW50_AW60 024409662011 01EN49.63 KB
MQ40MQ40 004418282011 01EN90.35 KB
Spare parts list MGS motor adapter with Rotex GS coupling MQ10_MQ20_MQ30_MQ50Spare parts list MGS motor adapter with Rotex GS coupling MQ10_MQ20_MQ30_MQ50 014412532011 01EN54.45 KB
Spare parts list MGS motor adapter with Rotex GS coupling MQ40Spare parts list MGS motor adapter with Rotex GS coupling MQ40 024412552011 01EN44.18 KB
Spare parts list MGS motor adapter with curved teeth coupling MQ10_MQ20_MQ30_MQ40_MQ50 _ MR10_MR20_MR30_MR40_MR50_MR60Spare parts list MGS motor adapter with curved teeth coupling MQ10_MQ20_MQ30_MQ40_MQ50 _ MR10_MR20_MR30_MR40_MR50_MR60 004416172011 01EN62.76 KB
Lubricant fill volumeLubricant fill volume 164418712021 08EN1.22 MB
TitleVersionIDDateLanguageSize / Type
Declaration of incorporationDeclaration of incorporation 00442718EN39.37 KB
Certificate ISO 50001Certificate ISO 50001 2020 08EN695.57 KB
SERVICES
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Service Network

STOBER is present in over 40 countries worldwide with 10 subsidiaries and 80 service partners. No matter where, no matter when, we’re always at your service and on the move!

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Do you need competent help with replacement parts, replacement drives, repairs and retrofitting? Feel free to contact us! We also offer a 24-hour hotline for urgent cases.

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Rugged gear units. Pleasant people.

“Our work together with STOBER has been going strong for many years. The price-performance ratio is good and the STOBER gear units are exceptionally robust. We have never had a problem with a drive and our contact person is always quick to help.”

– Achim Knupfer, Managing Director, ALFA TOOLS Spezialmaschinenfabrik GmbH



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