Efficient without any compromises: Helical bevel geared Lean motors.
Save on everything without reducing performance and energy efficiency!
When you use the encoderless Lean motor coupled with a first-class STOBER helical bevel gearbox, you can reduce the size of your drives while achieving a motor efficiency of up to 96%.
- Helical bevel gearbox with Lean motor
- KLM: Versatile and highly rigid, for exceptional backlash stability
- KLLM: Elegant, compact and completely without offset
This compact and very stable drive unit offers the best conditions for energy-efficient tasks in areas such as packaging and machine tools, automation or robotics.
And it also enables extremely space-saving machine and assembly concepts.
The very rigid gearboxes in this series feature high-quality helical gears that guarantee unsurpassed smooth operation and backlash stability.
K gearboxes paired with Lean motors are a winning combination, especially due to the extremely compact, rugged geometry of the housing at an exceptionally low weight. And its efficiency is excellent thanks to the motor’s IE5 classification rating.
The jointless, torsion-resistant block design and directly attached Lean motor form an extremely stable drive unit.
The motor shaft and gearbox output are on the same level, which makes the design of your machine or system so much simpler.
The geared motors of this series are mainly used when applications call for low weight, a small installation space and, above all, high energy efficiency. For more productivity and profitability.
Power density
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Price category
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- Total ratio: 4 – 294
- Allowed acceleration torque: 17 – 6820 Nm
- Backlash: 1.5 – 12 arcmin
- Efficiency: 94 – 97%
Find your right fit!
Power density
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Price category
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€ | € | € | € | € |
- Total ratio: 4 – 16
- Allowed acceleration torque: 35 – 60 Nm
- Backlash: 16 – 20 arcmin
- Efficiency: 97%
Find your right fit!
- To the features of K gearboxes
- To the features of Lean motors
- To the features of KL gearboxes
- To the features of Lean motors
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 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 | |
|---|---|---|---|---|---|---|
 | Catalog STOBER compact | 06 | 442655 | 2024 10 | EN | 9.76 MB |
 | Catalog Lean Motors LM | 06 | 443016 | 2023 05 | EN | 13.91 MB |
| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | Operating manual LM lean motors | 01 | 443048 | 2019 05 | EN | 817.89 KB |
 | Safety instructions for synchronous servo motors synchronous servo geared motors | 00 | 443104 | 2018 07 | EN | 74.66 KB |
| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | Connection plan LM to SB6 (LM_BF) | 00 | 443178 | 2025 04 | EN | 134.12 KB |
 | Connection plan LM_AT on SI6 | 00 | 443017 | 2017 11 | EN | 41.51 KB |
 | Connection plan LM_AR on SC6 | 00 | 442783 | 2017 11 | EN | 35.78 KB |
| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | Replacement parts list K10 helical bevel gear unit | 00 | 443455 | 2024 07 | EN | 1.33 MB |
 | Lubricant fill volume | 17 | 441871 | 2023 10 | EN | 2.18 MB |
 | Replacement parts list MGS gears with pre-stage in mounting position 5 | 01 | 441491 | 2009 11 | EN | 50.87 KB |
 | Replacement parts list K9 helical bevel gear unit | 01 | 442686 | 2018 03 | EN | 1.82 MB |
 | Replacement parts list K8 helical bevel gear unit | 00 | 442692 | 2018 03 | EN | 1.86 MB |
 | Replacement parts list K7 helical bevel gear unit | 00 | 443064 | 2018 03 | EN | 1.86 MB |
 | Replacement parts list K6 helical bevel gear unit | 00 | 443073 | 2018 03 | EN | 1.80 MB |
 | Replacement parts list K5 helical bevel gear unit | 00 | 443128 | 2018 10 | EN | 1.73 MB |
 | Replacement parts list K2 K3 K4 helical bevel gear unit | 00 | 443131 | 2018 10 | EN | 1.63 MB |
 | Replacement parts list K1 helical bevel gear unit | 00 | 443132 | 2018 09 | EN | 1.37 MB |
| Title | Version | ID | Date | Language | Size / Type | |
|---|---|---|---|---|---|---|
 | Certificate Free of CCC | 35 | 442072 | 2025 04 | EN | 261.03 KB |
 | EU Declaration of conformity synchron motors LM | 03 | 443082 | 2024 03 | EN | 73.54 KB |
 | UK declaration of conformity synchronous servo motors and synchronous servo geared motors EZ ED EK LM | 00 | 443297 | 2021 10 | EN | 71.46 KB |
 | Certificate UL - cURus Lean motors LM | 00 | 443098 | 2017 12 | EN | 1.27 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 12 subsidiaries 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.
OPENOne partner. All the possibilities.
Get the benefits of precise, practical system solutions for drives and automation with uncompromising quality and expert individual consultation.
Need special solutions?
Our product portfolio is modular and freely scalable, offering a very wide range of combination options. A drive system for custom-fit, compact machine concepts. With the option to make adjustments to fit the project.
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