Right-angle planetary servo geared motors
High-precision right-angle planetary gear units for small installation spaces, combined with extremely compact, dynamic synchronous servo motors.

Round the corner at full force: Right-angle planetary servo geared motors.

A high-precision right-angle planetary gear unit for small installation spaces, combined with an extremely compact, dynamic synchronous servo motor.

Our right-angle planetary servo geared motors – for high demands on smooth operation, efficiency and service life.

BENEFITS
Right-angle planetary gear unit feat. EZ motor

If the coaxial design of a motor forms interference contours, the STOBER planetary gear unit combined with a helical bevel geared motor is the ideal solution to meet the highest demands in terms of dynamics, backlash stability and ruggedness.

You get a precise right-angle servo gear unit – even for tight installation spaces – combined with an extremely compact, highly dynamic synchronous servo motor.

PKEZ: For high precision

The PK series consists of precise right-angle servo gear units with high-quality helical gearing – for exceptional backlash stability. And for large gear ratios.

When the PK series is combined with our extremely compact, highly dynamic EZ motor, the result is a precise right-angle servo geared motor featuring a high torsional stiffness and backlash stability!

PKXEZ: High precision for small installation spaces

The PKX gear unit series is the compact variant of the PK series. Just as precise and also featuring high-quality helical gearing, it is extraordinarily stable against backlash and perfect for tight installation spaces.

When combined with an EZ motor, the result is a very compact, highly dynamic drive unit with a right-angle gear unit and rugged planetary output stage – and without any offset.

PHKEZ: For high performance

The PHK gear unit series stands for high-performance right-angle servo gear units with high-quality helical gearing and very high torsional and tilting stiffness.

Compared to the PHKX series, the PHK gear units are ideal for larger gear ratios!

With the combination of PHK and an EZ motor, you get a dynamic, highly rigid drive unit consisting of a pre-mounted right-angle gear unit and a ruggedly mounted planetary output stage featuring high torque.

PHKXEZ: High performance for small installation spaces

The PHKX series is the compact variant of the PHK gear unit series. With just as much torsional and tilting stiffness, it is absolutely powerful with high-quality helical gearing and perfect for tight installation spaces.

When attached to an EZ motor, the result is an extremely compact right-angle geared motor with maximum volume performance, exceptional synchronism and high torque.

PHQKEZ: Quattro Power for a high power density

PHQK: An innovative 4-planet right-angle servo gear unit with high-quality helical gearing and very high torsional and tilting stiffness.

The same is true for the Quattro Power gear unit – it is ideal for large gear ratios.

And when it’s combined with an EZ motor, you get a geared motor with outstanding precision, very high performance, and very low backlash.

TECHNICAL DATA
PKEZ SERIES
Power density
Price category
  • Total ratio: 12 – 555
  • Allowed acceleration torque: 68 – 3105 Nm
  • Backlash: 1.5 – 5 arcmin
  • Efficiency: 94%

Find your right fit!
PKXEZ SERIES
Power density
Price category
  • Total ratio: 3 – 300
  • Allowed acceleration torque: 11 – 3300 Nm
  • Backlash: 2 – 8.5 arcmin
  • Efficiency: 94 – 96%

Find your right fit!
PHKEZ SERIES
Power density
Price category
  • Total ratio: 16 – 555
  • Allowed acceleration torque: 89 – 7500 Nm
  • Backlash: 1.5 – 4.5 arcmin
  • Efficiency: 92 – 93%

Find your right fit!
PHKXEZ SERIES
Power density
Price category
  • Total ratio: 4 – 300
  • Allowed acceleration torque: 26 – 2100 Nm
  • Backlash: 1 – 6 arcmin
  • Efficiency: 92 – 95%

Find your right fit!
PHQKEZ SERIES
Power density
Price category
  • Total ratio: 22 – 2242
  • Allowed acceleration torque: 123 – 43000 Nm
  • Backlash: 1.5 – 4 arcmin
  • Efficiency: 90 – 93%

Find your right fit!
FEATURES
PKEZ SERIES
PK gear unit feat. EZ motor …  
PKXEZ SERIES
PKX gear unit feat. EZ motor …  
PHKEZ SERIES
PHK gear unit feat. EZ motor …  
PHKXEZ SERIES
PHKX gear unit feat. EZ motor …  
PHQKEZ SERIES
PHQK gear unit feat. EZ motor …  
APPLICATIONS
Filling
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 and retrieval 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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Extrusion
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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Vertical turntables
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 turntables
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
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Catalog STOBER compactCatalog STOBER compact 044426552022 10EN10.24 MB
Catalog Synchronous servo geared motors with redundant brakeCatalog Synchronous servo geared motors with redundant brake 004433112022 05EN15.73 MB
Catalog Synchronous servo geared motors EZCatalog Synchronous servo geared motors EZ 114424372022 05EN25.74 MB
Catalog ServoStop servo gear units with brakeCatalog ServoStop servo gear units with brake 014432342022 03EN12.67 MB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Safety instructions for gear unitsSafety instructions for gear units 004431082018 07EN70.76 KB
Safety instructions for explosion-proof gear unitsSafety instructions for explosion-proof gear units 004431092018 07EN69.50 KB
Operating manual PK PKX PHK PHKX PHQK KS KL gear units and geared motorsOperating manual PK PKX PHK PHKX PHQK KS KL gear units and geared motors 004431502019 10EN1.69 MB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
No results were found.
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Lubricant fill volumeLubricant fill volume 164418712021 08EN1.23 MB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
UK declaration of conformity synchronous servo motors and synchronous servo geared motors EZ ED EK LM UK declaration of conformity synchronous servo motors and synchronous servo geared motors EZ ED EK LM 004432972021 10EN71.46 KB
Certificate UL - cURus synchronous servomotors EZ EZS EZM EZHD EZHPCertificate UL - cURus synchronous servomotors EZ EZS EZM EZHD EZHP 004430972016 12EN1.44 MB
EU declaration of conformity synchronous servo motors and synchronous geared motors ED EK EZEU declaration of conformity synchronous servo motors and synchronous geared motors ED EK EZ 014430892020 11EN37.12 KB
EU Declaration of conformity synchron motors LMEU Declaration of conformity synchron motors LM 024430822020 11EN39.12 KB
Certificate Free of CCCCertificate Free of CCC zh-cn4420722020 08EN354.37 KB
UK declaration of incorporation gear unitsUK declaration of incorporation gear units 004432992021 10EN74.12 KB
Declaration of Incorporation gear unitsDeclaration of Incorporation gear units 004427182015 04EN48.83 KB
SERVICES
Consulting & support
Technology Consulting

Take advantage of the expertise of our application engineers in the Sales Centers or contact our first level support.

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Tools & software
SERVOsoft®

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.

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STOBER Configurator

With the intuitive STOBER product configurator, you can filter, compare, save and share the right drive solutions with ease.

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STOBER CAD

Are you looking for CAD data? With the STOBER CAD tool, the drawings you need are ready for download in just a few clicks.

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Service, replacement & repair
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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Replacement & Repair

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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24-hour emergency number for urgent cases.
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One 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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