Designed to be absolutely practical:
Helical bevel servo geared motors.
In this series, helical bevel gear units and synchronous servo motors form a compact unit featuring very convenient installation dimensions and a high power density.
The result is an extremely wide range of efficient design options for the packaging and machine tool industries as well as for automation and robotics.
- Helical bevel gear unit feat. EZ motor
- KEZ: Versatile and compact, for exceptional backlash stability
- KLEZ: Elegant, dynamic and completely without offset
- KSEZ: Strong, stable and with the highest possible power density
This coupling-free combination of a K series gear unit and EZ series synchronous servo motor reduces the space requirements and rotating masses, thereby lowering the total weight.
This increases the dynamics and saves costs.
All geared motors in this series feature high-quality helical gearing that guarantees unsurpassed smooth operation and backlash stability.
K gear units paired with EZ motors are a winning combination, especially due to the extremely compact geometry of the housing featuring an extremely low weight, a high volume performance and high torque.
The jointless, torsion-resistant block design and the directly attached EZ motor combine to form a highly rigid drive unit.
The motor shaft and gear unit 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 used primarily when applications call for high dynamics, low weight and, above all, a small installation space.
Thanks to the technology that provides robust bearings and high-quality gearing, the gear units of the KS series are extremely durable and tip-resistant.
They can be used in continuous operation without any problems – even at high speed levels.
The advantage of direct attachment: the bevel gear stage, planetary gear unit and EZ motor form a compact unit featuring extremely convenient installation dimensions. Complemented by the square mounting flange, the geared motors can be mounted close together.
Power density
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€ | € | € | € | € |
- Total ratio: 4 – 381
- Allowed acceleration torque: 23 – 13200 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 – 32
- Allowed acceleration torque: 11 – 65 Nm
- Backlash: 16 – 25 arcmin
- Efficiency: 97%
Find your right fit!
Power density
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Price category
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€ | € | € | € | € |
- Total ratio: 6 – 100
- Allowed acceleration torque: 27 – 400 Nm
- Backlash: 4 – 6 arcmin
- Efficiency: 93 – 95%
Find your right fit!
- To the features of K gear units
- To the features of EZ motors
- To the features of KL gear units
- To the features of EZ motors
- To the features of KS gear units
- To the features of EZ 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 | 04 | 442655 | 2022 10 | EN | 10.24 MB |
 | Catalog Synchronous servo geared motors with redundant brake | 00 | 443311 | 2022 05 | EN | 15.73 MB |
 | Catalog Synchronous servo geared motors EZ | 11 | 442437 | 2022 05 | EN | 25.74 MB |
 | Catalog ServoStop servo gear units with brake | 01 | 443234 | 2022 03 | EN | 12.67 MB |
 | Catalog servo gear units | 04 | 443054 | 2021 12 | EN | 15.18 MB |
| Title | Version | ID | Date | Language | Size / Type | |
 | Operating manual Gear units and geared motors C F K S | 02 | 443027 | 2020 11 | EN | 288.54 KB |
 | Operating manual PK PKX PHK PHKX PHQK KS KL gear units and geared motors | 00 | 443150 | 2019 10 | EN | 1.69 MB |
 | Assembly instructions Lubrication connections of gear units C K S | 11 | 441631 | 2017 11 | EN | 105.08 KB |
 | Mounting instructions Hollow shafts with shrink disk for F K KL KS S gear units | 10 | 440711 | 2019 05 | EN | 118.14 KB |
 | Operating manual MB23 - MB53 ServoStop Motor adapter with brake | 01 | 443287 | 2022 11 | EN | 6.00 MB |
 | Operating manual EZ EZHD EZHP EZS EZM synchronous servo motors | 01 | 443032 | 2019 05 | EN | 441.75 KB |
| Title | Version | ID | Date | Language | Size / Type | |
 | 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 synchronous servomotors EZ EZS EZM EZHD EZHP | 00 | 443097 | 2016 12 | EN | 1.44 MB |
 | EU declaration of conformity synchronous servo motors and synchronous geared motors ED EK EZ | 01 | 443089 | 2020 11 | EN | 37.12 KB |
 | EU Declaration of conformity synchron motors LM | 02 | 443082 | 2020 11 | EN | 39.12 KB |
 | Certificate Free of CCC | zh-cn | 442072 | 2020 08 | EN | 354.37 KB |
 | UK declaration of incorporation gear units | 00 | 443299 | 2021 10 | EN | 74.12 KB |
 | Declaration of Incorporation gear units | 00 | 442718 | 2015 04 | EN | 48.83 KB |
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 10 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.
OPENFor us, TEAMWORK is a huge priority.
“At WINDMÖLLER & HÖLSCHER, collaborative partnership and trust are huge priorities. With STOBER, we have a strategic partner who also lives these by principles.”
– Christian Klein, Strategic Purchasing, WINDMÖLLER & HÖLSCHER KG
STOBER Product ID.
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