Best Gearboxes, Gearheads & Speed Reducers of 2025

Harvey Wall Avatar
Harvey Wall
Last Updated: 29 Jan 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Gearboxes, gearheads and speed reducers are essential components of many mechanical systems. These products are used to transmit power and stabilise the speed of rotation in a wide range of machinery, from conveyor belts to wind turbines. They are designed to provide reliable performance, even in harsh environments, and can help to reduce wear and tear on other mechanical components. With a variety of sizes and configurations available, gearboxes, gearheads and speed reducers can be customised to meet the specific needs of different applications.

At a Glance: Our Top Picks

N20 DC 6V 150RPM Gear Motor with Metal Gearbox Cover #TOP 1
N20 DC 6V 150RPM Gear Motor with Metal Gearbox
ftb score rating icon 9.8
Yosoo N20 Micro Speed Reduction Motor Cover #TOP 2
Yosoo N20 Micro Speed Reduction Motor
ftb score rating icon 9.7
RATTMMOTOR NMRV-030 Worm Gear Reducer Cover #TOP 3
RATTMMOTOR NMRV-030 Worm Gear Reducer
ftb score rating icon 9.5

Top 10 Gearboxes, Gearheads & Speed Reducers

#TOP 1

N20 DC 6V 150RPM Gear Motor with Metal Gearbox

Yosoo Health Gear1u0b4mgvke1882
N20 DC 6V 150RPM Gear Motor with Metal Gearbox Cover
N20 DC 6V 150RPM DC Gear Motor, Speed Reduction Gear, Micro Speed Reduction Motor Mini Gear Box Motor with Metal Gearbox for RC Car Robot Model DIY Engine

The N20 Gear Motor offers high-quality materials and professional manufacturing, ensuring durability and reliability in your projects. Its excellent performance features long wear resistance and high efficiency, making it ideal for various applications. You'll appreciate its stable performance and convenient installation, allowing you to easily integrate it into your DIY RC hobbies, drones, or other models. With this motor, you can enhance your creations while enjoying a beautiful design that complements your work.

What We Like
High-quality materials
Stable performance
Easy to install
Wide application range
Durable design
#TOP 2

Yosoo N20 Micro Speed Reduction Motor

Yosoo Health Gearoi4bm2t80w1883
Yosoo N20 Micro Speed Reduction Motor Cover
Micro Speed Reduction Motor, N20 DC3V 6V 12V 50-2000RPM DC Motor High Torque Motor with Metal Gearbox Mini Gear Box for RC Car Robot Model DIY Engine

The Yosoo N20 Motor is designed for performance and versatility. With a rated voltage of 12V and multiple speed options ranging from 50 to 2000 RPM, you can easily select the ideal speed for your project. The high-quality metal gearbox ensures durability and resistance to high temperatures, giving you peace of mind during operation. Additionally, this motor boasts excellent wear resistance and precision, making it a reliable choice for various DIY applications, such as RC cars and drones.

What We Like
High-quality metal gearbox
Multiple speed options
Durable and long-lasting
Easy to install
Versatile for various projects
#TOP 3

RATTMMOTOR NMRV-030 Worm Gear Reducer

RV030
i=50
i=50
RATTMMOTOR NMRV-030 Worm Gear Reducer Cover
RATTMMOTOR Small Worm Gear NMRV-030 Reduction Ratio 50:1 Square Flange Aluminum Alloy Housing Gear for NEMA23 Stepper Motor/Servo Motor

The RATTMMOTOR NMRV-030 Gear offers a robust solution for your drive needs. With a speed ratio of 50:1, it effectively reduces speed while increasing torque, making it ideal for various applications. Its aluminium alloy housing ensures a lightweight yet durable construction, providing a space-saving installation. Additionally, the waterproof and dustproof design enhances its longevity, giving you peace of mind in challenging environments. You can rely on its stable operation and low noise levels, improving your overall efficiency.

What We Like
High-quality aluminium housing
Waterproof and dustproof design
Stable operation with low noise
Wide application range
Efficient torque increase
#TOP 4

Fafeicy 12V High Torque Worm Gear Motor

Fafeicyq2ap70yz6n-03
12V 130RPM
Fafeicy 12V High Torque Worm Gear Motor Cover
DC 12 Volt Geared Motor, High Torsion Speed Reduce Gearbox Reversible 8mm Shaft Worm Gear Motor Mini Turbine Geared Motor for DIY Robot (130RPM)

The Fafeicy Worm Gear Motor features a high-quality copper tube motor that ensures excellent electrical conductivity and heat dissipation, allowing for stable operation. Its built-in ball bearing design reduces friction, which enhances the motor's efficiency and extends its lifespan. With an all-metal gear structure, it offers superior wear resistance and load capacity, making it ideal for demanding environments. The 8mm shaft design simplifies installation and connection, providing versatility for various applications like curtain machines and intelligent equipment.

What We Like
High torque performance
Durable all-metal gears
Efficient ball bearing design
Easy installation with 8mm shaft
#TOP 5

Garosa GA12-N20 Low Noise Gear Motor

Garosasgdwu30g1k-13
50RPM
Garosa GA12-N20 Low Noise Gear Motor Cover
Garosa GA12-N20 DC 3V Gear Motor Low Noise High Torsion Reducer Gear Motor 15-1000RPM, with Metal Gearbox(50RPM),Geared motor

The Garosa Gear Motor offers excellent performance with its high-quality workmanship, making it a perfect replacement for your old or damaged motor. Its professional design ensures ease of use, allowing you to replace it swiftly without hassle. The motor features a metal gearbox, which provides stable performance, ensuring reliability in your projects. With nine RPM options available, you can select the perfect speed to suit your needs, enhancing versatility in various applications.

What We Like
High-quality replacement option
Easy to replace and use
Stable performance with metal gearbox
Nine speed options available
Durable materials for longevity
#TOP 6

RATTMMOTOR NMRV-030 Worm Gear Reduction 30:1

NMRV030
i=30
RATTMMOTOR NMRV-030 Worm Gear Reduction 30:1 Cover
RATTMMOTOR Small Worm Gear NMRV-030 Reduction Ratio 30:1 Square Flange Aluminum Alloy Housing Gear for NEMA23 Stepper Motor/Servo Motor

The RATTMMOTOR NMRV-030 Gear is a high-quality worm gear designed for efficient performance. With a reduction ratio of 30:1, it allows you to effectively manage speed and torque, making it ideal for various applications. The robust aluminium alloy housing ensures durability and resistance to corrosion, providing long-lasting use. Additionally, its waterproof and dustproof design offers protection from environmental factors, allowing you to utilise it confidently in challenging conditions.

What We Like
High reduction ratio for torque
Durable aluminium alloy housing
Waterproof and dustproof
Stable operation with low noise
#TOP 7

14mm Alloy Steel Worm Reducer Gearbox RV30

Spacnana
Hilitandez54kocvit
14mm Alloy Steel Worm Reducer Gearbox RV30 Cover
Single Output Shaft Diameter 14mm Alloy Steel RV30 Motor Shaft Worm Reducer Gearbox NMRV030 RV030

The RV30 Worm Reducer is crafted from high-quality alloy steel, ensuring exceptional hardness and durability for a long service life. Its standard size allows for easy installation, providing stability during operation. This single output shaft is compatible with the NMRV030 RV030 worm reducer and Nema23 stepper motor, making it a versatile choice for various applications. Additionally, the glossy finish of the shaft ensures safe handling, as it has no burrs or notches that could cause injury.

What We Like
Durable alloy steel construction
Easy installation and stability
Good compatibility with motors
Safe, smooth finish
Stable and low-noise performance
#TOP 8

PGFUN Right Angle Bevel Gearbox Mini

TYXC-0046
8mm Shaft
PGFUN Right Angle Bevel Gearbox Mini Cover
PGFUN 1:1 Right Angle Tapered Bevel Gearbox Mini 1 Module 20 Teeth 90° Angle Drive Steering Gear Device Simple Mechanical DIY Module with 8mm Shaft

The PGFUN Bevel Gearbox is a versatile 1:1 right angle gearbox ideal for simple DIY mechanical projects. With its built-in 20 teeth bevel gears and 8 mm shaft, it offers a maximum torque rating of 5 N.M, making it suitable for moderate applications. The gearbox reaches a maximum rotation speed of 1500 rpm, providing efficient performance for various tasks. Its sturdy construction from aluminium alloy and stainless steel ensures durability, giving you confidence in its long-lasting use.

What We Like
Easy to use for DIY projects
Durable aluminium and stainless steel
Moderate torque for various applications
Compact size for convenient installation
#TOP 9

YWBL-WH 12V Metal Gear Motor

YWBL-WHpggevou6dt1274-07
12v 300rpm
YWBL-WH 12V Metal Gear Motor Cover
DC 12V Gear Motor 25mm Outer Diameter Gearmotor Motor Metal Reduction Motor Mini Speed Reduction Gearmotor

The YWBL-WH Gear Motor is a robust and reliable component designed for various applications. Its metal gear construction ensures durability and resistance to wear, meaning you can count on it for long-lasting performance. With a pure copper wire coil, it operates with low heat and low loss, enhancing its efficiency. This gear motor also boasts high precision and stability, providing you with a powerful performance while maintaining low noise levels, making it ideal for quiet environments.

What We Like
Durable metal construction
Low heat and energy loss
High precision and stability
Quiet operation
#TOP 10

RATTMMOTOR Worm Gear NMRV030 for Nema23

RTM-RV30
i=7.5
RATTMMOTOR Worm Gear NMRV030 for Nema23 Cover
RATTMMOTOR Worm Gear NMRV030, High Torque Worm Gear Box, Gearbox (7.5): 1 Input 11 mm Output 14 mm for Nema23 Stepper Motor (i=7.5)

The RATTMMOTOR Worm Gear NMRV030 is an ideal choice for those requiring a high torque solution. With a speed ratio of 7.5:1, it helps you achieve the desired speed and torque efficiently. The input bore size of 11 mm and output bore size of 14 mm ensure compatibility with various setups. Made from a durable aluminium alloy, it offers strong sealing and resistance to corrosion, enhancing its longevity. Just remember to keep the input speed below 1500 rpm to maintain its performance.

What We Like
High torque performance
Durable aluminium alloy
Corrosion resistant
Compatible with Nema23 motors
Efficient speed reduction
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What is speed reducer gearbox?

Speed reducers are gear trains between a motor and a piece of machinery. The purpose of the speed reducer is to reduce the rpm that is transmitted between these two end points. Speed reducers take the torque created by the motor (the input) and multiply it.

2. What is the difference between gearbox and gear reducer?

In greater context, the gear reducer is basically a tool used to increase efficiency in facility operations. The term “gearbox” is used to refer to any piece of equipment connecting a motor and a machine that consists of a series of gears, otherwise known as a gear train.

3. What are speed reducers used for?

A speed reducer is simply a gear train between the motor and the machinery that is used to reduce the speed with which power is transmitted.

4. What is speed gearbox?

A change-speed gearbox is a set of movable or constant gears which allows the speed ratio between input and output shafts to be changed either manually or automatically. An overspeed facility is provided through a step-up change-speed gearbox.

Editor's Notes

During our gearboxes, gearheads & speed reducer research, we found 88 gearboxes, gearheads & speed reducer products and shortlisted 10 quality products. We collected and analyzed 2,647 customer reviews through our big data system to write the gearboxes, gearheads & speed reducers list. We found that most customers choose gearboxes, gearheads & speed reducers with an average price of £11.67.

The gearboxes, gearheads & speed reducers are available for purchase. We have researched hundreds of brands and picked the top brands of gearboxes, gearheads & speed reducers, including Yosoo Health Gear, RATTMMOTOR, Fafeicy, Garosa, Spacnana. The seller of top 1 product has received honest feedback from 688 consumers with an average rating of 4.9.

Written by
Harvey Wall Avatar

Harvey Wall was born and raised in Norwich. He mastered the art of tool production and finished at the prestigious Norwich University. His area of interest include cutting tools, abrasive finishing and power tools. Harvey is always looking for ways to improve the finesse of industrial tools via his myriads of researches. He also shares some of his experiences on many platforms while writing on tool products.