JST Series Hydraulic Wheel Drives and Final Drives
Short Description:
JST hydraulic wheel drives integrate motor, planetary reduction, brake and output interface for tracked and wheeled mobile equipment.
JST hydraulic wheel drives integrate motor, planetary reduction, brake and output interface for tracked and wheeled mobile equipment.
| Selection Item | JST Series Option / Range | Selection Note |
|---|---|---|
| Drive type | Hydraulic motor + planetary final drive | Combines speed reduction, torque multiplication and output support. |
| Output interface | Wheel hub, sprocket, shell-drive, flange or custom output | Must match the mobile equipment structure and load path. |
| Reduction ratio | Custom ratio available | Balances travel speed and tractive force. |
| Torque capacity | Configured by machine load and duty | Check continuous torque, peak torque and shock load. |
| Brake | Integrated parking or holding brake options | Important for slopes, parking and safety requirements. |
| Hydraulic circuit | Open-loop or closed-loop compatibility by design | Valve and flushing requirements should be confirmed. |
| Bearing load | Radial and axial load checked by application | Critical for wheel and sprocket direct drive durability. |
| Mounting | Custom flange, pilot, bolt pattern and housing | Supports OEM installation and retrofit replacement. |
| Environment | Construction, mining, agricultural, marine and industrial duty | Guides sealing, coating and maintenance requirements. |
Engineering Notes
- Travel speed should be calculated from motor displacement, flow, ratio and wheel radius.
- Drawbar pull depends on output torque, wheel radius, machine weight and ground traction.
- Direct wheel drives must be checked for radial load and bearing life, not torque only.
- For slope parking or holding, brake capacity and release pressure must be confirmed.
Typical Applications
- Tracked mobile equipment: crawler carriers, drilling rigs, piling rigs, compact excavators and special tracked machines.
- Wheeled machinery: self-propelled platforms, agricultural vehicles, utility machines and compact industrial vehicles.
- Construction equipment: trenchers, road maintenance machines, mining support vehicles and foundation equipment.
- Forestry and agricultural equipment: harvesters, sprayers, trailers and off-road drive systems.
- Marine and offshore equipment: deck machinery and special mobile systems requiring corrosion-resistant drive options.
- Retrofit projects: replacement final drives for machines where original imported parts are costly or hard to source.
Best-Fit Buyer Profile
JST Series wheel drives are best for OEMs, equipment rebuilders and hydraulic system integrators who need a compact hydraulic final drive matched to a specific machine envelope, torque requirement and mounting interface.
Request a Technical Recommendation
For a fast recommendation, send machine weight, wheel or sprocket size, target speed, required torque, available pressure and flow, brake requirement, mounting drawing and working environment to jw.luo@jst-hydraulic.com or WhatsApp +86 186 6857 0723.
Detailed selection notes, FAQ, comparison tables and related guide links are kept here for buyers who need deeper technical information.
JST Series wheel drives are integrated hydraulic travel motor final drive units for tracked and wheeled mobile equipment. Each unit can combine hydraulic motor, planetary gearbox, brake, valve block and output interface in a compact drivetrain package for machines that require high torque, reliable braking and direct wheel or sprocket drive.
Why Choose JST Series Wheel Drives
- Integrated final drive assembly: hydraulic motor, planetary reduction, brake and valve options can be supplied as a matched unit.
- Compact high-torque output: planetary reduction provides strong wheel or track drive torque in limited installation space.
- Direct wheel or sprocket drive: suitable for shell-drive, hub-drive, sprocket-drive or custom output interface designs.
- Reliable braking options: spring-applied hydraulic release brake can be integrated for parking and holding requirements.
- Custom ratio and mounting: reduction ratio, flange, bolt pattern, output interface and valve configuration can be adapted to OEM layouts.
- Replacement and retrofit support: JST can review existing final drive dimensions and hydraulic parameters to develop compatible alternatives.
How to Select a Hydraulic Wheel Drive or Travel Motor Final Drive
Wheel drive selection should consider both hydraulic performance and mechanical installation. Useful data includes:
- Machine weight and traction requirement: vehicle weight, gradient, ground condition and desired drawbar pull affect output torque.
- Wheel or sprocket size: rolling radius determines the torque needed at the output interface.
- Target travel speed: maximum speed and low-speed control decide motor displacement and reduction ratio.
- Available pressure and flow: pressure determines torque potential; flow determines travel speed.
- Brake requirement: parking brake, emergency brake and holding brake needs should be defined early.
- Radial and axial load: wheel or sprocket loads must match bearing capacity and housing strength.
- Mounting interface: provide flange, pilot diameter, bolt pattern, output spline or hub dimensions.
- Control circuit: open-loop, closed-loop, counterbalance, flushing and relief valve requirements should be considered.
Wheel Drive vs Standalone Hydraulic Motor
A standalone motor only provides rotary power. A wheel drive or travel motor final drive adds planetary reduction, output support, brake and mounting structure, making it more suitable for direct wheel or track drive. For compact motor-only solutions, see BM Series Orbital Hydraulic Motors. For heavy-duty radial piston motor drives, see QJM Series Motors.
Common Custom Options
- Single-stage or multi-stage planetary reduction
- Custom reduction ratio for speed or tractive force priority
- Wheel hub, sprocket, shell-drive or flange output interface
- Integrated spring-applied hydraulic release brake
- Balance, relief, flushing or control valve options
- Custom mounting flange, pilot and bolt pattern
- Sealing and coating options for outdoor, mining or marine environments
Related Hydraulic Drive Products
JST wheel drives are often used together with hydraulic motors, gearboxes and braking systems. Related product families include QJM radial piston motors, BM orbital motors, JSC planetary gearboxes and JSJ hydraulic winches.
FAQ
What is a hydraulic wheel drive?
A hydraulic wheel drive is an integrated drive unit that uses hydraulic motor power and planetary reduction to drive a wheel, track sprocket or mobile machine output interface.
Can JST develop a replacement final drive?
Yes. Send the current final drive model, mounting drawing, output dimensions, ratio, brake requirement, pressure, flow and machine information for review.
How do I choose the correct reduction ratio?
The ratio is selected from required wheel torque, target travel speed, motor displacement, available pressure and flow. A higher ratio gives more torque but lower speed.
What information is needed for quotation?
Send machine weight, wheel or sprocket size, target speed, required torque or drawbar pull, pressure, flow, brake requirement, mounting drawing and working environment.
Related Final Drive and Hydraulic System Resources
- QJM Series radial piston hydraulic motors for high-torque low-speed drive
- JSC hydraulic transmission units for motor, gearbox and brake integration
- Hydraulic power units and system accessories for complete hydraulic drive packages
- Hydraulic winch selection guide for marine equipment as a related sizing example