The stylish classic unit for the long haul: Power transmission helical gear units.
Are you looking for a compact helical gear unit for industrial use? Made from one mold? Featuring high torsional stiffness? And high efficiency?
We recommend our power transmission helical gear units!
STOBER helical gear units have an impressive design from a single mold, without any parting lines that can weaken them. This monoblock design is an absolute advantage in terms of torsional stiffness and leak-proofness!
The housing of the gear units is made of gray cast iron. And the classic, proven mechanics allow these gear units to operate reliably even in harsh environments and in continuous operation.
Another characteristic feature of helical gear units are the coaxial axes. The helical gearing and resulting exceptionally smooth operation are also remarkable. It’s perfect for continuous operation.
Using a short motor adapter, the helical gear units can be attached to standard or stainless steel motors quickly and easily in accordance with IEC or NEMA-C.
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- Total ratio: 2 – 276
- Nominal torque: 21 – 6000 Nm
- Backlash: 10 – 20 arcmin
- Efficiency: 96 – 97%
Find your right fit!
- Shaft: Solid shaft with or without key (without for sizes C0 – C5, on request starting at C6)
- 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
- Motor adapter:
- Round motor adapter (MR) with curved tooth coupling
- Square motor adapter (MQ) with plug-in coupling (jaw coupling)
- Recommended motors: Can be attached to all standard steel or stainless steel motors in acc. with IEC or NEMA-C
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 moreWe 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 moreWe 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| Title | Version | ID | Date | Language | Size / Type | |
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| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | Operating manual F1 - F6 gear units and geared motors | 02 | 443366 | 2026 01 | EN | 3.19 MB |
 | Operating manual K1 - K10 gear units and geared motors | 02 | 443364 | 2026 01 | EN | 4.26 MB |
 | Operating manual VEM asynchronous motors | 04 | 441750 | 2022 07 | EN | 7.23 MB |
 | Operating manual C0 - C9 gear units and geared motors | 01 | 443365 | 2025 09 | EN | 3.59 MB |
 | Safety instructions for electrical equipment (VEM) | 01 | 441752 | 2018 10 | EN | 477.20 KB |
| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | EU declaration of conformity asynchronous motors and asynchronous geared motors | 00 | 443521 | 2025 05 | EN | 1.21 MB |
Take advantage of the expertise of our application engineers in the Sales Centers or contact our first level support.
OPENsystemsupport@stoeber.de
With SERVOsoft®, you have a tool at your fingertips that lets you design your drive systems with precise scaling in just a few steps. Electrical as well as mechanical design, and simple and fast at the same time.
OPENWith the intuitive STOBER product configurator, you can filter, compare, save and share the right drive solutions with ease.
OPENAre you looking for CAD data? With the STOBER CAD tool, the drawings you need are ready for download in just a few clicks.
OPENSTOBER is present in over 40 countries worldwide with 14 locations and 80 service partners. No matter where, no matter when, we’re always at your service and on the move!
OPENDo 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.
OPENA holistic approach for custom-fit solutions.
“What we appreciate about STOBER is that even different points of view or positions are addressed openly, discussed constructively and resolved by mutual agreement.”
– Christian Klein, Strategic Purchasing, WINDMÖLLER & HÖLSCHER KG
Dedicated and Solution-Oriented.
We support you in turning your visions and projects into reality.
In the process, we rely on our decades of experience and an exceptionally broad range of products. Take advantage of the expertise of our application engineers!
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