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We have been supplying DC gear motors to more than 500 companies, including small-sized, middle-sized, and industry giants, including some Fortune 500 companies like Stanley Black-Decker, Bosch, Honeywell, Maxon Motor, and Altra-Motion.

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Table of Contents

Spur geared DC Motors

Spur geared DC motors are a type of direct current (DC) motor that incorporates a spur gear gearbox. The gearbox consists of two meshed gears – a larger gear (the spur gear) and a smaller gear. These gears are positioned on parallel shafts but are offset from each other. When the smaller gear meshes with the larger gear, it reduces the rotational speed (RPM) of the motor while increasing the torque output.

Unique Feature And Advantages

Spur gear reduction amination
  • Simple design
  • Low Cost
  • High Efficiency
  • Low Noise
  • A wide range of sizes for your choice(from 10mm diameter to 50mm diameter)
  • Center output shaft or side output shaft

Planetry Gear Motors

Planetary gear motors are a type of gear motor that utilize a planetary gearset, also known as epicyclic gears. This gear arrangement consists of three main components: a central sun gear, multiple planet gears, and an outer ring gear or annulus. The planet gears revolve around the sun gear while simultaneously rotating on their own axes. These gears are typically mounted on a movable carrier, which can rotate relative to the sun gear. The outer ring gear meshes with the planet gears, completing the gear system.

Unique Feature And Advantages

  • Compact package
  • More Durable
  • High precision
  • Concentric output shafts
  • A wide range of gear ratios 
Planetary gear speed reduction amination

Worm Geared DC Motors

A worm geared DC motor is a type of gear motor that combines a direct current (DC) motor with a worm gear arrangement. The essential element of this gear system is the worm, which is a type of gear in the form of a screw. It meshes with a worm wheel, typically a helical gear. This pairing of the worm and worm wheel is also known as a worm screw and worm gear.

Unique Feature and Advantage

  • Very Low Noise
  • Self-lock
  • Low backlash
  • Low inertia
  • Right angle output shafts
  • Double shafts can be made
worm Gear reduction amination

Flat Gearbox DC motor

Flat gearbox DC motors, also known as flat gear reduction motors, are a type of gear motor that combines a DC motor with a flat gearbox. Unlike traditional cylindrical gearboxes, the flat gearbox has a compact and low-profile design with the output shafts parallel to the motor shaft. This unique configuration allows for a more streamlined and space-efficient motor solution.

Unique Feature and Advantage

  • High torque
  • Low RPM
  • Parallel output shafts
  • Double shafts can be made
gear reduction animation for flat gearbox

Two Channel Hall Efffect Magnet Encoder

12mm diameter magnet encoder
24mm diameter magnet encoder
28mm diameter magnet encoder
37mm diameter magnet encoder
42mm diameter magnet encoder
  • 3PPR (12 CPR)
  • 7ppr (28 CPR)
  • 12PPR (48 CPR)

A magnet encoder, also known as a magnetic encoder or magnetic rotary encoder, is a sensing device that detects and measures the position, speed, or rotation of a magnetized target. It utilizes magnetic field sensing principles to provide accurate and reliable feedback in various industrial and electronic applications.

When coupled with DC gear motors, magnet encoders play a crucial role in enhancing the performance and precision of motion control systems. The magnet encoder is typically integrated with the rotating shaft of the DC gear motor. As the motor rotates, the magnetized target on the shaft generates changes in the magnetic field.

The magnet encoder’s sensor, which is mounted nearby, detects these changes and converts them into electrical signals. These signals are then processed and interpreted to determine the motor’s position, speed, or direction of rotation.

By providing real-time feedback on the motor’s movement, the magnet encoder enables precise and accurate motion control.

Performance Overview

SeriesSizeTypeNominal voltageminimum gear ratiomax gear ratioSpeed after gearRated Torque
HT-SOG12 12mm diameterSpur gear motor1-12V10:11000:15-2000 RPM0.02-2
HT-SOG1515mm diameterSpur gear motor1-24V10:1360:18-1200 RPM0.1-4.5
HT-SOG2020mm diameterSpur gear motor1-24V10:1488:15-1600 RPM0.1-6
HT-SOG2525mm diameterSpur gear motor3-24V13:1499:13-600 RPM0.1-7
HT-SOG2727mm diameterSpur gear motor3-24V10:1720:13-700 RPM0.1-8
HT-SOG3030mm diameterSpur gear motor3-24V10:1300:110-600 RPM0.5-10
HT-SOG3232mm diameterSpur gear motor3-24V14:1466:15-600 RPM0.5-20
HT-SOG3333mm diameterSpur gear motor3-24V8:12000:12-1000 RPM0.5-20
HT-SOG3737mm diameterSpur gear motor3-24V10:1810:12-600 RPM0.2-35
HT-SOG5150mm diameterSpur gear motor6-24V6:11223:12-1200 RPM0.5-50
HT-POG1616mm diameterPlanetary gear motor1-24V5:12418:12-2000 RPM0.05-5
HT-POG2222mm diameterPlanetary gear motor3-24V4:11969:11-2000 RPM0.1-8
HT-POG2828mm diameterPlanetary gear motor3-24V4:12142:11-2000 RPM0.1-40
HT-POG3232mm diameterPlanetary gear motor3-24V4:13736:11-2000 RPM0.1-40
HT-POG3636mm diameterPlanetary gear motor6-24V4:13736:11-2000 RPM0.5-60
HT-POG4242mm diameterPlanetary gear motor12-24V4:12672:11-1500RPM1-150
HT-POG4545mm diameterPlanetary gear motor12-24V4:12672:11-1500RPM1-150
HT-COG6464mm*38mmFlat gearbox motor3-24V31:1828:13-250 RPM0.2-20
HT-COG7373mm*47mmFlat gearbox motor3-24V15:11240:11-550 RPM0.4-40
HT-COG9595mm*60mmFlat gearbox motor3-24V37:11059:11-200 RPM0.5-100
HT-FOG119119mm*70mmFlat gearbox motor6-24V127:15078:10.5-50 RPM1-300
HT-WOG3434mm*25mmWorm gear motor1-24V66:1352:115-150 RPM0.1-6
HT-WOG4646mm*32mmWorm gear motor3V-24V49:12450:11-160 RPM1-35
HT-WOG5858mm*40mmWorm gear motor6V-24V49:11269:12-120 RPM1-80

Customization to precisely meet your need





Low Noise

Low Current



NO Tooling Costs, even Cheaper than off-shelf Gear motors.

What we supply are DC gear motors with standard size and customized performance. Based on your specifications and applications, we choose different magnet materials, adjust the coil windings, match the proper gear ratio, and select suitable gear materials to build up the gear motors with the most optimal combination. Therefore, no tooling costs are involved in our customized DC gear motor solution! They are even cheaper than off-the-shelf gear motors, especially when you order in big quantities.

How we better suit your applications

We take care of your concerns and pay attention to every detail that may be involved in your application products, such as low noise, low backlash, low current, EMI, lifetime, and more. We then choose the most proper configurations and materials to build the gear motors, better suiting your needs.

Machined Gears For High Torque

Sintered Gears For Lower Cost

Plastic Gear For Lower Noise

Hybrid Gear for both lower noise and Higher torque

Brass Helical Gear

Grease For longer lifetime

Grease For Low current draw

Mobil Grease For Low Noise

Different copper wires&winding


Stronger magnet

Our core advantage

Strong Engineering Capablity

  • We have the best engineers and experts in China in the field of DC motors and Gearbox.
  • Our engineers have been dedicated to this industry for over 30 years, providing them with extensive experience.
  • With their rich expertise, we have a strong capacity to pay attention to every detail involved in your application when recommending and making motors for you, such as low noise, low backlash, low current, EMC, and more.
  • Our engineers have successfully helped many customers overseas in solving tough problems, and some clients have even come to visit and thank our engineers.

High Quality&Quality Stability

  •  Incoming material inspection
  •  First inspection
  •  IPQC (input process quality control)
  • Finished products 100%  inspection 
  • Sampling inspection before delivery 
  • No customers gone because of quality problem since 2004
  • No quality complaint for bulk order since 2004

Our customers' testimonials


Many people assume that customized DC gear motors are more expensive than standard ones. However, we’re here to tell you that’s not true. Our standard-sized DC gear motors with customized performance are not more expensive than off-the-shelf options.

So, why do people think customized motors are more expensive? Well, traditional standard gearboxes are made to be universal for a wide range of applications or industries. They use machined gears that are strong and durable but can be costly. Additionally, low noise is critical for some projects, which means plastic gears may be a better option. Some gearbox manufacturers use all sintered gears to save costs, but this can lead to stripped or broken gears if the motor is overloaded or stalls.

At our company, we design and develop molds for all parts, including sintered gears and plastic gears. This allows us to use proper gears for each position and each stage to produce gearboxes that are suitable for your application and cost-effective. We even offer customized DC gear motor solutions with special gearsets, such as plastic gears mated with metal gears, to ensure low noise and high torque for your application.

Our DC motors’ performance is also customized, including voltage, speed, and torque, via the tweak of the coil windings and magnets. This doesn’t cause extra costs, and the lead time may be longer than standard motors because of no stock of customized motors.

Our customized gear motors are actually tailor-made combinations of gears and motors to precisely meet customers’ specifications and application products. They are not more expensive than standard or off-the-shelf DC gear motors. In fact, they can be even cheaper, especially when you have a large demand.

In conclusion, customized DC gear motors can be a cost-effective option for your application needs. Don’t let misconceptions about the cost deter you from considering customized solutions for your project. Contact us today to learn more about how we can help meet your needs.

Before you start looking for a suitable motor, it’s important to have a clear understanding of the requirements of your application. Here are some steps you can take to prepare:

Determine the required speed and torque: Calculate the required speed and torque of your application. This will help you narrow down the motor options that can provide the required performance.

Choose a power source: Determine the power source that will be used to operate the motor, whether it’s AC or DC. This will limit your motor options to those that are compatible with the power source.

Consider environmental factors: Consider the environmental conditions that the motor will be exposed to, such as temperature, humidity, and vibration. This will help you choose a motor that can withstand the conditions of your application.

Determine the mounting requirements: Determine the mounting requirements of the motor, such as the size, shape, and mounting position. This will help you choose a motor that can fit into the available space and be mounted securely.

Consider any regulatory requirements: Consider any regulatory requirements that your motor must meet, such as safety standards or certifications.

By taking these steps to prepare, you’ll be better equipped to find a motor that meets the requirements of your application.

To determine the speed and torque requirements for your application, you need to consider the load the motor will need to move, the distance it needs to move it, and the time it has to complete the task. Once you have this information, you can use the following formula to calculate the required torque: Torque (lb-ft) = (force (lbs) x distance (ft). Similarly, you can use the following formula to calculate the required speed: Speed (RPM) = (distance (ft) / time (s)) x 60 / circumference (ft).

Calculating the speed and torque required in your application is important because it helps you select a motor that can meet the specific needs of your system. The required speed and torque depend on various factors such as the load, the distance the load must travel, the time it must take to travel that distance, and the desired acceleration or deceleration rate. If the motor you choose cannot provide the necessary speed and torque, it may not be able to move the load or may cause the load to move too slowly or too quickly. In extreme cases, the motor may stall or overheat, causing damage to the motor or other components in the system. Therefore, it is essential to calculate the speed and torque required in your application before selecting a suitable motor.

Determining the appropriate torque specifications for a gear motor can be a critical step in selecting the right motor for your application. However, it’s not always easy to come up with this information, particularly if you’re dealing with a complex mechanical system or an application with constantly changing load requirements.

So what can you do if you don’t have torque specifications? Here are a few possible solutions:

Provide Detailed Illustrations of Your Application
One option is to provide detailed illustrations or diagrams of your application to the gear motor supplier. This can help their engineers get a better understanding of how the motor will be used and the types of loads it will need to handle. Based on this information, the supplier’s engineers may be able to estimate the torque requirements of your application.

Select a Motor Based on Your Best Estimate
Another option is to select a motor based on your best estimate of the torque required for your application. This could involve taking into account the weight and size of the loads the motor will be moving, as well as any other relevant factors. Once you’ve selected a motor, you can conduct tests to see whether it’s able to handle the loads you’re working with. If it’s not, you can work with the supplier to select a more appropriate motor.

Work with the Gear Motor Supplier to Perform Testing
Finally, you can work with the gear motor supplier to perform testing on your application. The supplier may be able to help you set up tests that can help determine the torque requirements for your application. Based on the results of these tests, the supplier can recommend a motor that will be able to handle the loads you’re working with.

In any case, it’s important to work with a gear motor supplier that has experience working with a wide range of applications and is able to provide tailored solutions. This can help ensure that you’re able to select the right motor for your needs and that you’re able to meet the requirements of your application.

At HOTEC MOTOR, we have a team of experienced engineers who are able to help you select the right gear motor for your application, even if you don’t have torque specifications available. Contact us today to learn more about how we can help you find the right motor for your needs.

When it comes to choosing a DC gear motor for your application, many factors come into play, such as voltage, speed, and torque. While voltage and speed are relatively easy to understand, torque can be a bit more confusing, especially for customers who may not have experience in the field.

One common misconception is that the higher the torque, the better the motor is. However, this is not necessarily true. In fact, there are several reasons why higher torque may not be the best choice for your application.

Firstly, higher torque can mean higher current. In other words, if you choose a motor with too much torque for your application, it may draw too much current, especially if your product is battery-powered. This can shorten your battery life and cause other problems down the line.

Secondly, higher torque can mean higher costs. Motors with higher torque often have more complex designs and require more expensive materials, which can drive up the cost of your product. If your application does not require such high torque, then you may end up paying more than you need to.

Finally, choosing a motor with too much torque can actually be detrimental to your product. If the torque is too high for your application, it can cause other components to fail or break, which can be costly and time-consuming to fix.

So, what should you do instead? We recommend that you load the motor at its rated torque, which is at the maximum efficiency point. In other words, choose a motor that is designed to deliver the torque you need for your application, without going overboard. This will ensure that you get the best performance from your motor while keeping costs and other issues under control.

In conclusion, while torque is an important factor when choosing a DC gear motor, higher torque is not always better. By choosing the right motor for your application and loading it at its rated torque, you can ensure optimal performance and avoid potential problems down the line. If you have any questions or need help selecting the right motor for your needs, don’t hesitate to reach out to us – our team of experts is always here to help.

It’s a question we often receive from our customers: can I run a 12V DC motor at 24V? The answer is no, it’s not recommended. In fact, the same goes for running 3V motors at 6V, 6V motors at 12V, and so on.

Why is it not recommended? There are several reasons:

Brush Wear and Tear
The lifetime of a brushed DC motor largely depends on its brushes. When the brushes wear out, the motor will come to the end of its lifetime. The wear and tear of brushes is mainly caused by the spark and contact between the brushes and the commutator.

Running a motor at a voltage higher than its rated voltage will result in a higher current flow, which in turn produces more sparks and more wear and tear on the brushes. This can significantly shorten the motor’s lifespan.

Varistor Burnout
In addition to brush wear and tear, running a motor at a voltage higher than its rated voltage can cause other problems. For example, many 12V DC motors have a varistor inside that is not suitable for 24V. If the motor is run at 24V, the varistor can get burnt out after some time, which can also shorten the motor’s lifespan.

So, what should you do if you find that your 12V DC motor is not powerful enough or its speed is too slow? The best approach is to choose a motor with the desired speed and torque for your application. If you do need to increase the voltage, do so gradually and monitor the motor’s performance closely.

The truth is, it depends on a variety of factors. At our company, we adjust the performance of our DC gear motors to meet each customer’s specific requirements for voltage, speed, and torque.

However, even with these customized specifications, the lifespan of DC gear motors can still vary based on the application they are used in. The duty cycle, output direction, stall situation, and work environment etc can all affect the lifespan of a DC gear motor.

Intermittent work, where the motor is not running continuously, is generally better for the gearbox and can extend the motor’s lifespan compared to continuous work. Sudden reversals, which can cause inertia, can be harmful to both the gearbox and motor, and reduce the lifecycle of the motor.

Because of these factors, the actual lifespan of a DC gear motor can only be determined through field testing in your specific application. So, while we can provide customized DC gear motors to meet your requirements, we recommend testing to determine the actual lifespan in your application.

We offer two types of lifetime test systems for DC motors. The traditional test involves mounting micro fans on the DC motors as a load and running them continuously in 7×24 mode until their lifetime is finished. The simulation test, on the other hand, is based on your required voltage, speed, and torque. We simulate the work scenario in your application, including the working time in the clockwise direction, counterclockwise direction, and dwell time before direction change.

While we can help you conduct a lifecycle test, it’s always recommended to field test the gear motor’s lifespan in your application. However, please note that our current simulation lifetime test system may not be able to simulate situations where the load torque varies or the motors have to stall in your product.

If you have any questions or would like to schedule a test, please contact us.

Stalling a DC gear motor can be harmful to both the gearbox and the motor. When a motor is forced to stop, it creates high torque and high current, which can damage the gears and cause the motor to overheat and burn out.

However, in some applications, stalling is necessary for the motor to perform its intended function. For example, in valve applications, the motor must stall to ensure that the valve is fully closed and leak-free. By limiting the current,you need find a balance point where the motors are powerful enough to meet your special requirements but meaning output torque will not break the gears and output current will not burn the motors. 

If your application requires stalling, it is important to limit the current in your design. Additionally, sharing information about your specific application can help us provide a better motor solution with durable materials to withstand the demands of stalling.

At our company, we understand the importance of finding the right motor solution for your unique needs. Contact us today to learn more about our DC gear motors and how we can help you find the right solution for your application.

DC gear motors are an essential component in many devices and systems, providing the necessary power and motion for various applications. When it comes to maintenance, some customers may wonder if it’s possible to open and repair a DC gear motor if it stops working properly.

However, it’s important to note that DC gear motors are designed to be free-maintenance. Unlike other types of motors, they are not meant to be opened or serviced by the user. Once you open the DC motor, it cannot be reassembled and returned to its original condition.

DC motors are sealed units, which means they are protected from the elements and require no lubrication. This also means that they do not require maintenance, other than regular cleaning and inspection of the external components.

If a DC gear motor stops working, it’s best to replace it rather than trying to repair it. At our company, we offer a wide range of high-quality DC gear motors with different specifications and features to meet your specific application needs.

In summary, DC gear motors are designed to be free-maintenance and should not be opened or serviced by the user. Regular cleaning and inspection of external components can help ensure optimal performance and prevent any issues. If a DC gear motor stops working, it’s best to replace it with a new one.

Your trusted DC gear motor supplier

We are dedicated to offering you reliable but cost-effective DC gear motor solution to your application. We are there every step on your way, from initial consultant to sampling, from trial production to mass production. We will never let you down!


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