Planetary gear units

Far more than just a planetary gear unit.

Since the 1980s, STOBER has specialized in the development of planetary gear units, the premier class of drive technology!

At the end of 2019, we presented the 3rd generation of planetary servo gear units, bringing drive solutions that are the most compact on the market for their performance range and enormous variety of combinations and options!

BENEFITS

STOBER planetary gear units score points above all for their exceptional performance, torsional backlash stability and ruggedness. Alongside that, the excellent housing and gearing quality ensures high acceleration torques and also the highest running accuracy and precision.

What’s more, our planetary gear units have an impressively flexible interface technology. Not only can the gear units be combined with different STOBER motors via direct attachment, they can also be attached to all third-party motors in any size using variable adapters.

As another advantage, you can also select the right bearings for the application you need. With our enormous variety, we give you all the options in the design phase to put together exactly the right drive solution for any application.

STOBER planetary gear units are ideal for machine tools and packaging machines as well as applications in automation and robotics.

High-performance. Precise. Perfect fit.

The decisive characteristic of the P series planetary gear unit is the high-quality helical gearing that gives the gear unit smooth operation and backlash stability that is second to none.

Another outstanding property is its extremely high efficiency. Due to the very low frictional torques, this series is ideal for continuous operation and high-speed applications.

P gear units are available as compact, directly attached planetary geared motors in either the servo or Lean version.

Maximum flexibility: The gear units can be attached to all common synchronous servo motors by suitable adapters.

The PH series planetary gear units are high-performance servo gear units with increased torsional and tilting stiffness.

Their inner workings are distinguished by our proven, high-quality helical gearing. The output shaft is designed as a flange.

The gear units are ideal for drive solutions that have the highest requirements for rigidity, precision and reliability.

PH gear units are either available as directly attached, compact planetary servo geared motors or they can be attached to all common synchronous servo motors by suitable adapters.

Quattro power stands for an innovative 4-planet system!

PHQ is a precise servo gear unit featuring high-quality helical gearing as well as the highest torsional and tilting stiffness. For maximum torque.

It is also especially ideal for drives in pick-and-place applications and is the perfect solution for tight installation spaces.

PHQ gear units are either available as directly attached, compact planetary servo geared motors or they can be attached to all common synchronous servo motors by suitable adapters.

PHV – a precise high-performance servo gear unit with proven high-quality helical gearing as well as very high torsional and tilting stiffness.

The gear units are very short, which is perfect for tight spaces. And they are especially ideal for large gear ratios.

PHV gear units are either available as directly attached, compact planetary servo geared motors or they can be attached to all common synchronous servo motors by suitable adapters.

This series is a highly cost-effective variant of the STOBER planetary gear units with high performance. It also has the helical gearing that is typical for STOBER, low noise development and the best smooth operation. It’s a unique feature on the market in this price and product class.

Especially in combination with the STOBER IE5-classified Lean motor, you get an unbeatably compact and economical unit!

STOBER PE gear units can be used for efficient applications in the fields of automation and robotics.

PE gear units are available as either directly attached, compact planetary geared Lean motors or planetary servo geared motors.

Maximum flexibility: The gear units can be attached to all common synchronous servo motors by suitable adapters.

TECHNICAL DATA
Power density:
Price category:
€ € € € €
  • Total ratio: 3 – 100
  • Allowed acceleration torque: 21 – 3450 Nm
  • Backlash: 1 – 8 arcmin
  • Efficiency: 95 – 97%

Find your right fit!
Power density:
Price category:
€ € € € €
  • Total ratio: 4 – 100
  • Allowed acceleration torque: 60 – 7500 Nm
  • Backlash: 1 – 4 arcmin
  • Efficiency: 93 – 96%

  Find your right fit!
Power density:
Price category:
€ € € € €
  • Total ratio: 61 – 121
  • Allowed acceleration torque: 4250 – 7500 Nm
  • Backlash: 1 – 3 arcmin
  • Efficiency: 90%

  Find your right fit!
Power density:
Price category:
€ € € € €
  • Total ratio: 5.5 – 600
  • Allowed acceleration torque: 200 – 43000 Nm
  • Backlash: 1 – 3 arcmin
  • Efficiency: 90 – 96%

  Find your right fit!
Power density:
Price category:
€ € € € €
  • Total ratio: 3 – 100
  • Allowed acceleration torque: 17 – 250 Nm
  • Backlash: 8 – 13 arcmin
  • Efficiency: 95 – 97%

  Find your right fit!
FEATURES
  • Shaft: Solid shaft with or without feather key
  • Bearing: Standard, axial or radial reinforced
  • Backlash: Standard or reduced
  • Mounting position: Any
  • Lubricants and maintenance:
    • Synthetic lubricant CLP HC ISO VG 150
    • Lubricated for life and maintenance-free
  • Paint: RAL 9005 Jet black
  • Motor adapter:
    • EasyAdapt (ME) with clamp coupling, optionally with a large motor plate (MEL)
    • FlexiAdapt (MF) with bellow coupling and integrated thermal length compensation
    • ServoStop (MB) with plug-in coupling (jaw coupling) and integrated spring-loaded brake
  • Recommended motors for direct attachment: Particularly efficient in combination with STOBER EZ or LM series motors
  • Shaft: Flange shaft
  • Bearing: Standard or reinforced (PH3 – PH5)
  • Backlash: Standard or reduced
  • Mounting position: Any
  • Lubricants and maintenance:
    • Synthetic lubricant CLP HC ISO VG 150
    • Lubricated for life and maintenance-free
  • Paint: RAL 9005 Jet black
  • Motor adapter:
    • EasyAdapt (ME) with clamp coupling, optionally with a large motor plate (MEL)
    • FlexiAdapt (MF) with bellow coupling and integrated thermal length compensation
    • ServoStop (MB) with plug-in coupling (jaw coupling) and integrated spring-loaded brake
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
  • Shaft: Flange shaft
  • Backlash: Standard or reduced
  • Mounting position: Any
  • Lubricants and maintenance:
    • Synthetic lubricant CLP HC ISO VG 150
    • Lubricated for life and maintenance-free
  • Paint: RAL 9005 Jet black
  • Motor adapter:
    • EasyAdapt (ME) with clamp coupling, optionally with a large motor plate (MEL)
    • ServoStop (MB) with plug-in coupling (jaw coupling) and integrated spring-loaded brake
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
  • Shaft: Flange shaft
  • Bearing: Standard or reinforced (PHQ4 – PHQ5)
    • Backlash: Standard or reduced
    • Mounting position: Any
    • Lubricants and maintenance:
      • Synthetic lubricant CLP HC ISO VG 150
      • Lubricated for life and maintenance-free
    • Paint: RAL 9005 Jet black
    • Motor adapter:
      • EasyAdapt (ME) with clamp coupling, optionally with a large motor plate (MEL)
      • FlexiAdapt (MF) with bellow coupling and integrated thermal length compensation
      • ServoStop (MB) with plug-in coupling (jaw coupling) and integrated spring-loaded brake
    • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
    • Shaft: Solid shaft with feather key
    • Mounting position: Any
    • Lubricants and maintenance:
      • Synthetic high performance gear grease
      • Lubricated for life and maintenance-free
    • Paint: RAL 9005 Jet black
    • Motor adapter:
      • EasyAdapt (ME) with clamp coupling, optionally with a large motor plate (MEL)
    • Recommended motors for direct attachment: Particularly efficient in combination with STOBER motors of the LM or EZ series
    APPLICATIONS
    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
    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
    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
    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
    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
    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
    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 ServoStop servo gear units with brakeCatalog ServoStop servo gear units with brake024432342023 04EN15.15 MB
    Catalog STOBER compactCatalog STOBER compact054426552023 03EN9.86 MB
    Catalog servo gear unitsCatalog servo gear units054430542023 03EN15.90 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 PE22 - PE52 gear units and geared motorsOperating manual PE22 - PE52 gear units and geared motors004432522021 03EN764.29 KB
    Operating manual MB23 - MB53 ServoStop Motor adapter with brakeOperating manual MB23 - MB53 ServoStop Motor adapter with brake034432872024 01EN6.39 MB
    Operating manual PHV94-PHV104 gear units geared motorsOperating manual PHV94-PHV104 gear units geared motors004433552023 02EN2.15 MB
    Operating manual PH33-PH83 PH94-PH104 gear units geared motorsOperating manual PH33-PH83 PH94-PH104 gear units geared motors004433542023 02EN2.20 MB
    Operating manual PHQ43-PHQ83 PHQ94-PHQ124 gear units geared motorsOperating manual PHQ43-PHQ83 PHQ94-PHQ124 gear units geared motors004433532023 02EN2.29 MB
    Operating manual P23 - P93 gear units and geared motorsOperating manual P23 - P93 gear units and geared motors004433562023 07EN2.00 MB
    Safety instructions for gear unitsSafety instructions for gear units004431082018 07EN70.76 KB
    Safety instructions for explosion-proof gear unitsSafety instructions for explosion-proof gear units004431092018 07EN69.50 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
    Declaration of Incorporation gear unitsDeclaration of Incorporation gear units014427182024 03EN68.12 KB
    UK declaration of incorporation gear unitsUK declaration of incorporation gear units004432992021 10EN74.12 KB
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    Planetary gear units for highly dynamic applications.

    “We work with STOBER because the wide selection of planetary gear units always gives us the right solution for all kinds of different servo tasks. We also appreciate the good advice and support and especially how quick it is. Working together with STOBER is always very enjoyable and productive.”

    – Uwe Biermann, Mechanical Design Feeding Technology, Schuler Pressen GmbH

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    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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