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Inline Servo Gear Units

STOBER inline servo gear units offer unparalleled precision, power, and flexibility. Choose from planetary gearing or helical bevel. With options for bearings or reduced backlash, we can optimize our products to match your application. Industry Applications: Fuselage, Wing assembly, Drilling and Riveting, Machine Tool, Automated Guided Vehicles (AGV), Carbon Fiber Placement, Testing and Inspection, Space Tracking Systems
stober P series

P Series

​For high precision and smoothness
P Series features planetary gearing providing unsurpassed smoothness, precision, low backlash and efficiency. Choose from several bearing options to handle radial or axial loads, optimizing your machine design. Bearings options for axial or radial loads include Standard Ball Bearing that are ideal for axial and radial load capacity and Reinforced Bearing that are ideal for high axial loads.
  • Total gear ratio range: 3 – 100
  • Acceleration torque: 11 – 3,450 Nm
  • Nominal torque: 16 – 2,483 Nm
  • Continuous Input Speed: Up to 6,000 RPM
  • Cyclic Input Speed: Up to 8,000 RPM
  • Torsional Stiffness: Up to 407 Nm/arcmin
  • Find your right fit with Stober’s Configurator
stober C Series

C Series

​For mounting flexibility

C Series offers housing styles that fit your application: round or square flanges, tapped holes, or foot mounting. They utilize helical gearing for up to 97% efficiency. The C gearboxes are available as compact planetary servo geared motors or they can be mounted to any motor with a toleranced motor adapter. Output Shafts include Plain Shaft and Feather Key.

  • Bearings: Standard ball bearing – ideal for axial and radial load capacity; Double row angular contact bearing – ideal for high axial loads; Cylindrical roller bearing – ideal for radial loads
  • Total gear ratio range: 2 – 276
  • Acceleration torque: 36 – 8,000 Nm
  • Nominal torque: 35 – 7,000 Nm
  • Continuous Input Speed: Up to 4,000 RPM
  • Cyclic Input Speed: Up to 7,000 RPM
  • Torsional Stiffness: Up to 393 Nm/arcmin
  • Package Options: options for different environments. A package includes coating, lubrication, and output material:
      • Standard Duty – RAL-9005 black paint, Synthetic Exxon Mobil SHC 629, carbon steel output
      • Food Duty – 316 stainless steel epoxy paint with anti-microbial clear coat, Exxon Mobil SHC CIBUS 220, and stainless steel output
  • Find your right fit with Stober’s Configurator
stober PH series

PH Series

​For inline applications
PH Series offers superior stiffness and accuracy with reinforced bearing options for applications with higher axial loads. They are available as compact planetary servo geared motors or they can be mounted to any motor with our toleranced motor adapter. Coating Options include Standard Duty – RAL-9005 black paint and Washdown Duty – 316 stainless steel epoxy paint. Environmental ATEX Certified Available for explosive environments
  • Bearings Options: Standard – ball bearing ideal for some axial and radial load capacity and Reinforced bearing – ideal for high axial loads
  • Total gear ratio range: 4 – 121
  • Acceleration torque: 60 – 7,500 Nm
  • Nominal torque: 36 – 5,000 Nm
  • Continuous Input Speed: Up to 6,000 RPM
  • Cyclic Input Speed: Up to 8,000 RPM
  • Torsional Stiffness: Up to 1,743 Nm/arcmin
  • Find your right fit with Stober’s Configurator
stober PE series

PE Series

For economic applications

PE Series is ideal for applications that don’t require the highest precision or smoothness. Its unique for an economy option because it utilizes helical gearing. PE gearboxes are available as compact planetary servo geared motors or they can be mounted to any motor with our toleranced motor adapter. Coating Options include Standard Duty – RAL-9005 black paint and Washdown Duty – 316 stainless steel epoxy paint.

  • Total gear ratio range: 5.5 – 600
  • Acceleration torque: 200 – 43,000 Nm
  • Nominal torque: 100 – 25,000 Nm
  • Continuous Input Speed: Up to 4,500 RPM
  • Cyclic Input Speed: Up to 8,000 RPM
  • Torsional Stiffness: Up to 6,269Nm/arcmin
  • Find your right fit with Stober’s Configurator
stober PH series

PHQ Series

For maximum power and rigidity
PHQ Series features four planetary gears, making it the most powerful gearbox on the market. It provides smooth operation while producing huge amounts of torque. PHQ gearboxes are available as compact planetary servo geared motors or they can be mounted to any motor with our toleranced motor adapter. Bearings options for axial or radial loads include Standard – ball bearing ideal for some axial and radial load capacity and Reinforced bearing – ideal for high axial loads. Coating Options include Standard Duty – RAL-9005 black paint and Washdown Duty – 316 stainless steel epoxy paint.
  • Standard and Reduced Backlash:
  • Total gear ratio range: 3 – 100
  • Acceleration torque: 11 – 3,450 Nm
  • Nominal torque: 16 – 2,483 Nm
  • Continuous Input Speed: Up to 6,000 RPM
  • Cyclic Input Speed: Up to 8,000 RPM
  • Torsional Stiffness: Up to 407 Nm/arcmin
  • Find your right fit with Stober’s Configurator

Discover the Stober Advantage

  • Superior Components
  • Precision gearing for longer life
  • Optimized Design
  • State-of-the-art inspection and testing

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