Wheel Drives and Final Drives

JST Series Hydraulic Wheel Drives and Final Drives

JST hydraulic wheel drives integrate motor, planetary reduction, brake and output interface for tracked and wheeled mobile equipment.

Focus: Travel torque, braking and mobile drive reliability
Engineering boundary: Final sizing, configuration and interface require JST engineering confirmation.

Product Overview

Series capability and selection context

JST hydraulic wheel drives integrate motor, planetary reduction, brake and output interface for tracked and wheeled mobile equipment.

Hydraulic motor, reducer, brake and output hub can be supplied as a matched wheel-drive assembly.

Selected by machine weight, travel speed, gradeability and available hydraulic pressure and flow.

Mounting dimensions, bolt pattern and hydraulic data can be checked for replacing imported final drives.

Technical Data

Product Type	Hydraulic wheel drive / final drive
Main Components	Hydraulic motor, planetary reducer, brake and output hub or sprocket interface
Reduction Ratio	Custom ratio selected by travel speed and tractive force
Brake	Integrated parking or holding brake options
Selection Focus	Machine weight, sprocket or wheel size, gradeability, pressure and flow
Applications	Crawler travel, wheeled mobile equipment, off-road vehicles and retrofit final drives

Configuration Reference

Final sizing, configuration and interface require JST engineering confirmation.

Output interface	Wheel hub, sprocket, shell-drive, flange or custom output matched to the load path.
Brake	Integrated parking or holding brake options for slopes, parking and safety requirements.
Hydraulic circuit	Open-loop or closed-loop compatibility by design; valve and flushing requirements should be confirmed.

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.

Selection Guide

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.
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.
Wheel drive selection should consider both hydraulic performance and mechanical installation. Useful data includes:

Engineering Notes

Drive type: Hydraulic motor + planetary final drive for speed reduction and torque multiplication.
Output interface: Wheel hub, sprocket, shell-drive, flange or custom output matched to the load path.
Reduction ratio: Custom ratio available to balance travel speed and tractive force.
Torque capacity: Configured by machine load, continuous torque, peak torque and shock load.
Brake: Integrated parking or holding brake options 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 loads checked for wheel or sprocket direct-drive durability.
Mounting: Custom flange, pilot, bolt pattern and housing for OEM installation or retrofit replacement.

Final sizing, configuration and interface require JST engineering confirmation.

Technical Support