Right-angle planetary gear units

Right-angle planetary gear units: When the motor gets in your way.

Our premium planetary gear units paired with our high efficiency helical bevel gear units. The result: STOBER right-angle planetary gear units!

BENEFITS

If the motor in coaxial design represents an interference contour, the combination of a STOBER planetary gear unit with a bevel gear unit is the best choice for the highest demands on dynamics, backlash stability and robustness.

Performat. Precise. Precise fit. Around the corner!

PK gear units are available either as compact servo planetary angular gearmotors for direct mounting or can be attached to all common synchronous servomotors via corresponding adapters.

The PKX series is the compact variant of the PK series: equally precise, also with high-quality helical gearing, exceptionally stable and perfect for tight installation situations.

PKX gears are available as either compact servo or direct-mount lean planetary angle gearmotors.

Maximum flexibility: The gear units can be attached to all common synchronous servomotors via corresponding adapters.

PHK series features a high-performance right-angle servo drive unit with high-quality helical gearing and very high torsional and tilting rigidity.

Compared to the PHKX series, the PHK drives are ideal for larger gear ratios.

PHK drives are available either as compact servo planetary angular drives for direct mounting or can be attached to all common synchronous servomotors via corresponding adapters.

The PHKX series is the compact version of the PHK series: also very torsionally and tilt-resistant, absolutely high-performance, with high-quality helical gearing and perfect for confined installation situations.

PHKX drives are available either as compact servo planetary angular gearmotors for direct mounting or can be attached to all common synchronous servomotors via corresponding adapters.

PHQK: Quattro Power for highest power density

Our innovative 4-planet servo right-angle gearbox with high-quality helical gearing and very high torsional and tilting rigidity.

The same applies to the Quattro Power transmission – it is ideal for large gear ratios.

PHQK drives are available either as compact servo planetary angular drive motors for direct mounting or can be attached to all common synchronous servo motors via corresponding adapters.

TECHNICAL DATA
PK SERIES
Power density:
Price category:
  • Total ratio: 12 – 561
  • Allowed acceleration torque: 200 – 3105 Nm
  • Backlash: 1.5 – 5 arcmin
  • Efficiency: 94%

Find your right fit!
PKX SERIES
Power density:
Price category:
  • Total ratio: 3 – 300
  • Allowed acceleration torque: 21 – 3300 Nm
  • Backlash: 2 – 8.5 arcmin
  • Efficiency: 94 – 96%

Find your right fit!
PHK SERIES
Power density:
Price category:
  • Total ratio: 16 – 561
  • Allowed acceleration torque: 355 – 7500 Nm
  • Backlash: 1.5 – 4.5 arcmin
  • Efficiency: 92 – 93%

Find your right fit!
PHKX SERIES
Power density:
Price category:
  • Total ratio: 4 – 300
  • Allowed acceleration torque: 60 – 6975 Nm
  • Backlash: 1 – 6 arcmin
  • Efficiency: 92 – 95%

Find your right fit!
PHQK SERIES
Power density:
Price category:
  • Total ratio: 22 – 2242
  • Allowed acceleration torque: 316 – 43000 Nm
  • Backlash: 1.5 – 4 arcmin
  • Efficiency: 90 – 93%

Find your right fit!
FEATURES
PK SERIES
  • 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
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
PKX SERIES
  • 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:
    • FlexiAdapt (MF) with bellow coupling and integrated thermal length compensation
  • Recommended motors for direct attachment: Particularly efficient in combination with STOBER EZ or LM series motors
PHK SERIES
  • Shaft: Flange shaft
  • Bearing: Standard or reinforced (PH3K – PH5K)
  • 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
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
PHKX SERIES
  • Shaft: Flange shaft
  • Bearing: Standard or reinforced (PH3K – PH5K)
  • 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:
    • FlexiAdapt (MF) with bellow coupling and integrated thermal length compensation
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
PHQK SERIES
  • Shaft: Flange shaft
  • Bearing: Standard or reinforced (PHQ4K – PHQ5K)
  • 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
  • Recommended motor for direct attachment: Particularly efficient in combination with a STOBER EZ series motor
APPLICATIONS
Horizontal machining units
Industries and Applications

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Portal milling
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We get your visions moving – in various industries and markets worldwide.

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Welding robots
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We get your visions moving – in various industries and markets worldwide.

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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 MB23 - MB53 ServoStop Motor adapter with brakeOperating manual MB23 - MB53 ServoStop Motor adapter with brake034432872024 01EN6.39 MB
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 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
UK declaration of incorporation gear unitsUK declaration of incorporation gear units004432992021 10EN74.12 KB
Declaration of Incorporation gear unitsDeclaration of Incorporation gear units004427182015 04EN48.83 KB
SERVICES
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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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We are here for you.

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 Feed Technology, Schuler Pressen GmbH

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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