Planetary Gearboxes and Transmission Units

JFB Series Planetary Rotary Gearboxes

JFB planetary rotary gearboxes provide compact high-torque slewing drive solutions with custom ratios, output pinion and mounting options.

Focus: Reduction ratio, output torque and rotary duty
Engineering boundary: Final sizing, configuration and interface require JST engineering confirmation.

Product Overview

Series capability and selection context

JFB planetary rotary gearboxes provide compact high-torque slewing drive solutions with custom ratios, output pinion and mounting options.

Compact planetary gear stages provide high output torque for slewing, rotary and auxiliary drive systems.

Ratio, output flange, shaft interface and housing layout can be selected around the hydraulic motor and driven load.

JST reviews torque, duty cycle, mounting space and replacement dimensions before confirming the gearbox configuration.

Technical Data

Item	JFB Planetary Rotary Gearbox
Product focus	Planetary gearbox for rotary output
Typical supply scope	Gearbox with output shaft, flange or pinion options
Best for	OEMs that already define motor, brake and circuit separately
Selection focus	Torque, ratio, output interface and mounting dimensions

Configuration Reference

Final sizing, configuration and interface require JST engineering confirmation.

Gear structure	Two-stage or three-stage planetary reduction options.
Output options	Pinion, shaft, spline or flange output.
Input options	Hydraulic motor interface, brake interface or custom adapter.

Applications

Selection Guide

Output torque: confirm continuous torque, peak torque, shock load and required safety factor.
Reduction ratio: match gearbox ratio with hydraulic motor speed, target output rpm and machine duty cycle.
Output interface: choose pinion output, splined output, shaft output or flange output according to the driven mechanism.
Slewing ring data: provide gear module, tooth number, pressure angle, pitch diameter and center distance when a pinion is required.
Brake and motor interface: confirm whether the gearbox will be used with a hydraulic motor, multi-disc brake or complete slewing drive assembly.
Mounting dimensions: check flange, pilot, bolt pattern, oil port clearance and installation orientation.
Operating environment: specify outdoor, marine, dusty, low-temperature or high-duty-cycle conditions.
Two-stage or three-stage planetary reduction structure for different torque and ratio requirements.

Engineering Notes

Product type: Planetary rotary gearbox / slewing gearbox.
Gear structure: Two-stage or three-stage planetary reduction options.
Output options: Pinion, shaft, spline or flange output.
Input options: Hydraulic motor interface, brake interface or custom adapter.
Ratio range: Configured according to torque and output speed requirement.
Mounting: Custom flange, pilot diameter and bolt circle available.
Project support: Drawing review, dimension matching and OEM customization available.
Final confirmation: Parameters should be confirmed from torque, ratio, ring gear data, mounting dimensions and duty cycle.

Final sizing, configuration and interface require JST engineering confirmation.

Technical Support