Planetary gearboxes
Our extensive range of planetary gearboxes extends from 750 ft-lbs to 2.2 million ft-lbs of nominal gearbox torque with gearbox ratios ranging from 3.5 to 22,000 : 1. The RE and GB series of planetary gearboxes have axial, radial, and torque ratings that surpass current industry standards for any given size and come complete with an extensive offering of output/input configurations and accessories.
Modular design
A shared planetary platform philosophy—stages, ratios, and accessories combine so we can scale from compact RE units to multi-megawatt GB torque without reinventing the core drivetrain.
Comparison
Max output torque
Nominal peaks by series
| Series | Torque (ft-lbs) | Torque (Nm) |
|---|---|---|
| RE Series | 59,200 | 80,000 |
| EH Series | 332,100 | 450,000 |
| WD Series | 383,764 | 520,000 |
| GB Series | 2,215,000 | 3,000,000 |
- RE Series59,200 ft-lbs80,000 Nm
- EH Series332,100 ft-lbs450,000 Nm
- WD Series383,764 ft-lbs520,000 Nm
- GB Series2,215,000 ft-lbs3,000,000 Nm
Our planetary gearboxes can be supplied with the following outputs: flange mounts, foot supports, or shaft mounted with shrink discs. The output shafts can be male or female, cylindrical, splined, square, or hexagon, and our integral pinion output shafts have made us leaders in the small slew and yaw drive markets.
Product lines
Series overview
From compact RE stages to high-torque GB and specialized track and winch drives—each family is built for configurability and field-proven duty.
RE Series
Our RE Series of planetary gearboxes are compact and highly efficient at 98% efficiency per reduction stage. Available with a wide array of input and output accessories. RE Series offers 740 to 59,200 ft-lbs of nominal gearbox torque.
View series
GB Series
The GB Series is our high torque range of planetary gearboxes. Offering a sizeable torque range and available with a wide array of input and output accessories, GB offers 88,560 to an impressive 2.2 million ft-lbs of nominal gearbox torque.
View series
EH Series – Track Drive
Our EH Track Drives design allows for a wide range of ratio combinations. The Track Drives come with integral negative static multi-disc brakes and variable or fixed motor inputs. EH offers 73,800 to 332,100 ft-lbs of nominal gearbox torque.
View series
WD Series
The WD series is designed for hoist applications. The Winch Drive series is highly customizable and can be supplied with or without hydraulic motor and valve assemblies. WD offers 4,000 to 380,000 ft-lbs of nominal gearbox torque.
View series
HyPer Drive Series
The HyPer Drive series combines the advantages of the GB gearboxes with the modular advantages of parallel shaft and helical bevel gearboxes and gear motors. The result is a high-performance combined package for industrial applications.
View series
Custom Gearboxes
The modular design of our planetary gearboxes and our flexible thinking allows for easy customization. We have successfully designed and implemented countless customized planetary gearbox solutions.
View series
Options
Gearbox accessories
Every application is unique and has different requirements. Our gearboxes are designed to accommodate a variety of accessories to ensure maximum efficiency and productivity.
Negative static multi-disc brakes
Dinamic Oil designs and produces all of our own wet negative static multi-disc brakes in house. The brakes are optional accessories for our planetary gearboxes and winch drives and offer a wide range of torque ratings. Brakes can also be configured as “dry” brakes that allow them to function at increased input speeds without overheating; others can accommodate sprag clutches. Each brake is 100% tested to ensure the rated braking torque is verified.
NEMA and IEC electric motor inputs
All of our RE and GB Series Gearboxes come with optional NEMA and IEC Electric Motor Inputs. The frame sizes vary from NEMA 56 to 365 and IEC 71 to IEC 355. Electric motors can be mounted directly onto the gearbox and adapted to inline or bevel configurations.
Foot supports
All of Dinamic Oil’s RE and GB series of planetary gearboxes come with optional cast or fabricated foot supports. The modular and robust design allows for easy field installation.
Other accessories
- Torque arms
- Shrink discs
- Two-speed inputs and disconnects
- Water cooling jackets
Refer back to this page as we regularly add more accessories to complement our product range.
Please contact us to learn more about our custom engineered solutions.
Applications & use cases
- Mobile equipment and specialty vehicles
- Industrial power transmission and process machinery
- Drilling, mining, and heavy civil applications
- Custom OEM integrations with tight packaging constraints
Differentiators
- Extensive catalog plus deep customization
- High torque density with disciplined thermal management
- Field-proven reliability and maintainable designs
Engineering
Technical focus
Conversation starters for integration teams—documentation deepens during active projects.
- Planetary stages, ratios, and mounting flexibility
- Lubrication, sealing, and contamination control
- Integration support for motors, brakes, and sensors