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 with 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%

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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.

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DOCUMENTS
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Catalog Synchronous servo geared motors with redundant brakeCatalog Synchronous servo geared motors with redundant brake014433112023 04EN18.29 MB
Catalog STOBER compactCatalog STOBER compact054426552023 03EN9.86 MB
Catalog Synchronous servo geared motors EZCatalog Synchronous servo geared motors EZ124424372023 03EN25.73 MB
More than just a gearboxMore than just a gearbox004431572019 10EN1014.67 KB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Operating manual PH33KX-PH83KX PH94KX-PH104KX gear units geared motorsOperating manual PH33KX-PH83KX PH94KX-PH104KX gear units geared motors004433592023 02EN2.64 MB
Operating manual PH53K-PH83K PH94K-PH104K gear units geared motorsOperating manual PH53K-PH83K PH94K-PH104K gear units geared motors004433582023 02EN2.37 MB
Operating manual PHQ53K-PHQ83K PHQ94K-PHQ124K gear units geared motorsOperating manual PHQ53K-PHQ83K PHQ94K-PHQ124K gear units geared motors004433572023 02EN2.38 MB
Operating manual P23KX - P93KX gear units and geared motorsOperating manual P23KX - P93KX gear units and geared motors004433612023 07EN2.54 MB
Operating manual P53K - P93K gear units and geared motorsOperating manual P53K - P93K gear units and geared motors004433602023 07EN2.19 MB
Safety instructions for synchronous servo motors synchronous servo geared motorsSafety instructions for synchronous servo motors synchronous servo geared motors004431042018 07EN74.66 KB
Operating manual EZ EZHD EZHP EZS EZM synchronous servo motorsOperating manual EZ EZHD EZHP EZS EZM synchronous servo motors014430322019 05EN441.75 KB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Connection plan EZ_GV on B&R ACOPOSMulti EnDat 2.2 OCS (Standard)Connection plan EZ_GV on B&R ACOPOSMulti EnDat 2.2 OCS (Standard)004430922018 06EN121.54 KB
Connection plan EZ_GS on SI6 compatibleConnection plan EZ_GS on SI6 compatible004430512017 11EN56.37 KB
Connection plan EZ_BA on SC6 EnDat 3 OCSConnection plan EZ_BA on SC6 EnDat 3 OCS014431742021 01EN172.22 KB
Connection plan EZ_BB on SI6 EnDat 3 OCSConnection plan EZ_BB on SI6 EnDat 3 OCS014431752021 01EN172.06 KB
Connection plan EZ_AB on MDS 5000 Connection plan EZ_AB on MDS 5000 044423062019 02EN173.47 KB
Connection plan EZ_AJ on SDS 5007Connection plan EZ_AJ on SDS 5007024426682019 02EN159.22 KB
Connection plan EZ_AK on SDS 5007 Sin-CosConnection plan EZ_AK on SDS 5007 Sin-Cos014426702017 07EN61.55 KB
Connection plan EZ_AL on SD6A02Connection plan EZ_AL on SD6A02014426722017 07EN67.71 KB
Connection plan EZ_AM on SD6 Sin-CosConnection plan EZ_AM on SD6 Sin-Cos024426742019 02EN152.12 KB
Connection plan EZ_GG on B&R Acopos EnDat 2.2 (Standard)Connection plan EZ_GG on B&R Acopos EnDat 2.2 (Standard)024426772018 06EN128.06 KB
Connection plan EZ_GP on B&R P3 EnDat 2.2 (Standard)Connection plan EZ_GP on B&R P3 EnDat 2.2 (Standard)014430222018 06EN120.97 KB
Connection plan EZ_AP on SI6 digitalConnection plan EZ_AP on SI6 digital024427712018 07EN118.51 KB
Connection plan EZ_AA on SDS 5000Connection plan EZ_AA on SDS 5000044423052019 02EN172.96 KB
Connection plan EZ_AC on MDS 5000_ SDS 5000 Sin-CosConnection plan EZ_AC on MDS 5000_ SDS 5000 Sin-Cos024423072017 07EN76.48 KB
Connection plan EZ_AE on SD6 Sin-CosConnection plan EZ_AE on SD6 Sin-Cos024424512019 02EN166.02 KB
Connection plan EZ_AF on MDS 5007Connection plan EZ_AF on MDS 5007024426652019 02EN159.14 KB
Connection Plan EZ_GQ on Sinamics S120 EnDat 2.2 (Customer Universal)Connection Plan EZ_GQ on Sinamics S120 EnDat 2.2 (Customer Universal)024430492023 07EN142.61 KB
Anschlussplan EZ_FB an SDS 4000 _ kompatibelAnschlussplan EZ_FB an SDS 4000 _ kompatibel024423092019 02EN139.58 KB
Connection Plan EZ_FJ on Siemens SINAMICS S120Connection Plan EZ_FJ on Siemens SINAMICS S120044423152021 03EN514.12 KB
Connection plan EZ_GY on B&R Acopos P3 EnDat 2.2Connection plan EZ_GY on B&R Acopos P3 EnDat 2.2004430952023 10EN220.08 KB
Connection plan EZ_AD on SD6Connection plan EZ_AD on SD6014424502021 09EN194.53 KB
Connection plan EZ_FA on SDS 4000 compatibleConnection plan EZ_FA on SDS 4000 compatible044423082019 02EN143.66 KB
Connection plan EZ_FG on B&R ACOPOSConnection plan EZ_FG on B&R ACOPOS044423132019 02EN157.61 KB
Connection plan EZ_FM on Beckhoff AX5000Connection plan EZ_FM on Beckhoff AX5000034423182020 02EN197.08 KB
Connection plan EZ_FP on MDS / SDS 5000 compatibleConnection plan EZ_FP on MDS / SDS 5000 compatible044423212019 02EN154.44 KB
Connection plan EZ_GB on MDS 5000 SDS 5000 Sin-Cos compatibleConnection plan EZ_GB on MDS 5000 SDS 5000 Sin-Cos compatible014424472017 11EN106.64 KB
Connection plan EZ_FR on MDS _ SDS 5000 compatibleConnection plan EZ_FR on MDS _ SDS 5000 compatible044423222017 11EN114.86 KB
Connection plan EZ_FV on B&R ACOPOSMultiConnection plan EZ_FV on B&R ACOPOSMulti024424442019 02EN158.02 KB
Connection plan EZ_FW on Bosch Rexroth IndraDrive CConnection plan EZ_FW on Bosch Rexroth IndraDrive C044424452017 06EN73.02 KB
Connection plan EZ_AH on MDS 5007Connection plan EZ_AH on MDS 5007014426662017 07EN61.80 KB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
Lubricant fill volumeLubricant fill volume174418712023 10EN2.18 MB
The document you are looking for is not listed? Hint: Select "all languages".
TitleVersionIDDateLanguageSize / Type
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 EZ024430892024 03EN73.57 KB
Certificate Free of CCCCertificate Free of CCC334420722024 04EN310.22 KB
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 EZHP004430972016 12EN1.44 MB
SERVICES
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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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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 Network

STOBER 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!

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