HIGH PRECISION | LOW BACKLASH | HIGH TORQUE DENSITY
Precision Planetary Gearboxes
Compact Size. High Torque. Precise Motion.
Our planetary gearboxes are designed for industrial automation and precision transmission applications, offering compact size, high torque density and reliable performance. Available in spur and helical versions, with multiple sizes and reduction ratios to match different motors and application requirements.
Planetary Gearbox Key Features
Multiple Sizes
Available in multiple frame sizes for different motor and installation requirements.
Wide Reduction Ratios
Multiple reduction ratios are available to meet different speed and torque requirements.
Low Backlash
Precision gearbox options are available for applications requiring accurate positioning.
High Torque Capacity
Compact planetary structure provides high torque density and reliable transmission performance.
Flexible Motor Compatibility
Compatible with servo, stepper and BLDC motors for flexible industrial integration.
Helical Planetary Gearbox Series
OUBANG MOTION offers AB, ABR, AD, AE, AS, AL, AF and AH planetary gearbox series in multiple frame sizes for servo-driven automation, precision positioning and motion-control applications.
AB Series
Inline High-Precision Helical Planetary Gearbox
Frame Sizes:
42 / 60 / 90 / 115 / 142 / 180 / 220 mm
ABR Series
Right-Angle Precision Helical Planetary Gearbox
Frame Sizes:
42 / 60 / 90 / 115 / 142 / 180 / 220 mm
AD Series
Flange-Output Helical Planetary Gearbox
Frame Sizes:
47 / 64 / 90 / 115 / 142 / 200 / 255 mm
AE Series
High-Precision Helical Planetary Gearbox
Frame Sizes:
70 / 90 / 115 / 155 / 205 / 235 mm
AS Series
Inline High-Precision Helical Planetary Gearbox
Frame Sizes:
60 / 90 / 115 / 142 / 180 / 220 mm
AL Series
Inline Precision Helical Planetary Gearbox
Frame Sizes:
60 / 90 / 115 / 160 mm
AF Series
Square-Flange Helical Planetary Gearbox
Frame Sizes:
60 / 90 / 115 / 160 mm
AH Series
Heavy-Duty Helical Precision Planetary Gearbox
Frame Sizes:
42 / 60 / 80 / 90 / 120 / 150 mm
Spur Planetary Gearbox Series
PF Series
Spur Planetary Gearbox
Frame Sizes:
40 / 60 / 80 / 90 / 120 mm
PL Series
Spur Planetary Gearbox
Frame Sizes:
40 / 60 / 80 / 90 / 120 mm
Spur vs Helical Planetary Gearbox
Spur and helical planetary gearboxes have different gear structures and performance characteristics. Compare the two types below to select the right solution for your application.
Spur Planetary Gearbox
Helical Planetary Gearbox
Helical Planetary Gearbox Design Features
Integrated Ring Gear & Housing
The internal ring gear is precision-machined as an integral part of the housing, enhancing structural rigidity, dimensional accuracy, and torque capacity.
Integrated Planet Carrier & Output Shaft
The planet carrier and output shaft are manufactured as a single-piece structure to improve torsional rigidity, alignment accuracy, and operational stability.
Precision Ground Sun Gear
Made from high-grade alloy steel, the sun gear undergoes vacuum carburizing and heat treatment, followed by precision grinding for superior surface hardness, accuracy, and wear resistance.
Flexible Motor Adapter Flange
The modular input adapter flange allows seamless integration with a wide range of servo and stepper motor brands and shaft configurations.
Motor Compatibility
Compatible Motor Types
Servo Motors
Ideal for high-precision positioning, automation and motion-control applications.
Stepper Motors
Suitable for positioning, indexing and compact automation systems.
BLDC Motors
Provides efficient, quiet and adjustable-speed drive solutions for industrial equipment.
Compatible Servo Motor Brands
Our planetary gearboxes can be matched with a wide range of mainstream servo motor brands using suitable adapter flanges. Please provide the motor model, flange dimensions and shaft specifications for matching confirmation.
Panasonic
Yaskawa
Mitsubishi Electric
Omron
Fuji Electric
SANYO DENKI
KEYENCE
Toshiba
Tamagawa Seiki
NIKKI DENSO
SANMEI
Miki Pulley
Shinko Electric
NIDEC SANKYO
Delta
LUST
Bosch Rexroth
Hitachi Industrial Equipment Systems
Custom Adapter Flanges
Matched to your motor model and mounting dimensions.
Wide Servo Compatibility
Compatible with many European and Asian servo motor brands.
Flexible Motor Interfaces
Available for keyed, smooth and clamp-type shaft configurations.
Planetary Gearbox Industry Applications
Robotics & Automation
Precise positioning and smooth motion for robotic arms, cobots and automated equipment.
CNC Machinery
High rigidity and low backlash for CNC machines, rotary axes and precision positioning systems.
Packaging Machinery
Stable speed reduction and positioning for packaging, labeling and production equipment.
Material Handling
Reliable torque transmission for conveyors, gantries and automated handling systems.
AGVs & AMRs
Compact high-torque drive solutions for autonomous mobile robots and automated guided vehicles.
Solar & Renewable Energy
Robust drive solutions for solar tracking systems, panel cleaning robots and green energy equipment.
Why Choose OUBANG MOTION Planetary Gearboxes?
Engineered for precision, reliability, and seamless integration with global servo and stepper systems.
100% Quality & Backlash Testing
Every planetary gearbox is fully inspected for backlash, noise, and torque before shipment to ensure stable and reliable performance.
Custom Adapter Flanges
Flexible input flanges and shaft configurations can be customized to match different servo and stepper motor brands.
Fast Delivery & Global Shipping
Standard models are typically ready within 3–7 working days, with direct factory export and complete shipping documentation.
3D CAD & Technical Support
STEP files, drawings, and technical assistance help engineers speed up selection, installation, and equipment integration.
Frequently Asked Questions
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Need Help Choosing the Right Planetary Gearbox?
Tell us your motor model, speed, torque, reduction ratio and application requirements. Our team can help you select the suitable planetary gearbox configuration.