Mini Gearbox

Mini gearboxes (gearheads) reduce speed and boost torque to deliver stable, controllable output for micro motors. Choose spur, planetary, or worm designs with custom ratios, shafts, and housings—built for robotics, medical devices, UAV payloads, and industrial automation.

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A Closer look

What is a Mini Gearbox?

Definition

A mini gearbox (also called a gearhead or gear reducer) mounts to a motor to convert high-speed, low-torque input into lower-speed, higher-torque output—improving load handling and motion control in compact devices.

Key Benefits

Boosts torque while reducing output speed for practical working loads
Compact design enables higher torque density in tight spaces (especially planetary)
Improves positioning feel and stability for precision motion systems
Multiple gear types available (spur / planetary / worm) to match cost, noise, and ratio needs

Products

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Why Choose SLW Mini Gearboxes

Custom ratios & mechanical interfaces

Choose ratios, shaft types, mounting patterns, and housing sizes to fit your space and load requirements—OEM/ODM supported.
High torque density, compact design

Planetary options distribute load across multiple gears, enabling high torque capability in a small footprint.
Low noise & smooth transmission options

Select gear forms optimized for quieter, smoother meshing where vibration and sound matter.
Integration support

Complete gearmotor solutions with matching motors and optional feedback components for faster assembly and validation.

Applications

Mini Gearbox Applications

Robotics and Automation

Mini gearboxes deliver higher output torque and controllable speed for joints, grippers, small AGVs, and actuators—helping compact robots move smoothly under load.

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Medical Equipment

Drone / UAV

Precision Instruments

Industrial Automation

FAQ

Frequently Asked Questions

Find quick answers to the most common questions about our mini gearbox

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How does a gearbox increase torque?

By reducing speed through gear reduction, the system trades rotational speed for higher output torque (minus efficiency losses), helping the motor drive heavier loads.

What types of mini gearboxes are most common?

Spur, planetary, and worm gearboxes are widely used. Each offers different trade-offs in size, ratio range, noise, and load handling.

Why choose a planetary mini gearbox?

Planetary designs can deliver high torque density in a compact form because the load is shared across multiple gears, which is helpful in space-limited devices.

When should I use a worm gearbox?

Worm gearboxes are useful for high reduction ratios and right-angle layouts, and some designs provide self-locking behavior for holding loads.

Are mini gearboxes noisy?

Noise depends on gear type, tooth form, lubrication, and load. Gear designs with smoother meshing can reduce vibration and sound compared with basic straight-tooth designs.

How do I select the right gear ratio?

Start from required output torque and target output speed, then choose a ratio that keeps the motor within its efficient operating range while meeting load demands.

What customization options are available?

Common options include gear ratio, shaft type, mounting interface, housing size/material, lubrication, and integration with a matching motor.

What information should I send for a quotation?

Provide voltage, target speed, required torque, duty cycle, space constraints (diameter/length), shaft/mount details, and your application scenario.