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Electric Brushed Motor

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Your Professional DC Micro Motor Manufacturer!

Guang Dong Lihua Mechatronics Co.,Ltd is a well-established company in the producing micromotor since 2003, more than 12000 square meter,500+customers and 300 + workers. Committed to providing high-quality, reliable, and high-performance micro motors, we cater to a variety of industrial and consumer applications. Whether you need small electric tools, smart home devices, or medical equipment, we can offer customized solutions. Partner with us to enhance the performance and competitiveness of your products!

 
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What is electric Brushed motor?

 

According to the difference of motor brush type,electric motor can be divided into two main catagories:Electric Brushed motor and Carbon Brushed motor.

 

Generally used for high speed micro-motors, carbon brushes have a longer service life than regular metal brushes but produce more noise. In comparison, metal brushes make very little noise but have a shorter service life.

  • Low Noise
    Suitable for Low-noise equipment
     
  • More Competitive
    Better price more affordable
     
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What Key Components Determine The Price & Performance Of a Motor
 

 

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COMMUTATOR

Commutator is a key component in DC motors, mainly used to change the direction of the current, so as to realise the forward and reverse rotation of the motor. The commutator plays a vital role in the operation of a Sigma motor, and its performance directly affects the efficiency and stability of the DC motor. The commutator usually consists of a set of metal plates that are in close contact with the brushes of the motor.

MOTOR BRUSH

Brushes have metal brushes and carbon brushes. Carbon brushes miniature motor to be longer than the service life of metal brushes, because the friction of brushes and commutator will produce a lot of heat, the greater the friction, the higher the temperature, the temperature is too high and will damage the brushes, while friction is too large will have an impact on the speed of the miniature motor.

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Bearing

The function of the bearings is to support and locate the rotor. The motor shaft is supported by the bearing between the inner and outer rolling elements and the seat ring that rotates with the shaft. The bearings must be able to withstand centrifugal forces, vibrations and accelerations from starting and stopping as well as during operation. Most bearings are made of steel or aluminium alloys. High-quality bearings are also available for use in corrosive environments.

MAGNETS

Good or bad permanent magnets directly determine the performance and efficiency of motors and generators. Selection of permanent magnets, magnetic circuit design, organisation of windings.

Arc magnet (magnetic tile) classification:Ferrite tiles are mainly sintered ferrite, NdFeB tiles are divided into two categories: sintered and bonded, in addition to samarium cobalt tiles, alnico tiles and so on.

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high-Tech Prodution Machines

 

 

Efficient and flexible - 20+production lines

Equipped with more than 20 motor production lines, flexible production adjustments, regardless of the size of the product batch, can be completed quickly to meet the special needs of customers. The number of motors produced per day can reach 125,000 PCS

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    60 Automatic Winding Machine 
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    25 +Automatic Brush Inserter
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    25+ Automatic Stator
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    15+ Automatic Wire Soldering Pressure Sensitive Machine

 

 

Quality  First  service Priority

Choose the plan that suits you best.

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Dynamic Sales Department

Our dynamic sales team consists of 7 skilled members with basic motor knowledge. They respond promptly to customer needs and maintain active communication. Focused on building long-term relationships, our team has achieved a 15% increase in sales over the past year, earning strong customer trust.

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Innovative R&D Department

The innovative R&D team includes 10 experts, one with over 15 years of industry experience. They specialize in providing precise motor solutions, addressing customer pain points and challenges. With a 95% project success rate in the last three years, we’ve helped clients reduce technical issues by 30%.

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Dedicated Production Department

With 200 line workers, our dedicated production department is committed to quality and continuous improvement. Utilizing lean manufacturing, we deliver over 1 million high-quality motors annually, with a defect rate of less than 0.5%, significantly boosting customer satisfaction.

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Meticulous Quality Department

Our meticulous quality team of 20 professionals, including raw material inspectors, patrol inspectors, and shipment inspectors, ensures rigorous quality control at every stage. Adhering to ISO 9001 standards, we achieve a product pass rate of 99.8%, meeting the highest customer expectations.

 

 

Benefits of Electric Brushed Motor （Take RC Car Motor for Example）

 

 

Brushed motors are affordable
Since they use older, simpler designs, brushed motors can almost always be found within your budget. Prices vary based on motor brand or motor can size, but generally speaking, brushed motors will be less expensive than brushless motors. This lower price is reflected in the retail price of brushed RTRs vs. brushless RTRs, with brushed versions costing 20-40% less! If you're considering buying your first RC car but don't want to spend hundreds of dollars from the get-go, purchasing a brushed RC car will allow you to start your RC journey with only a small investment.

 

You're less likely to take off your gear
Brushed motors may not have the strength or speed of brushless motors, but more power isn't always a better thing. Your RC vehicle uses a series of internal gears to power the drivetrain, and if these gears are not strong enough to handle the extra power, they tend to fall out. You most often encounter this problem with nylon (plastic) gears, but many people manage to strip metal gears as well! The quality of metal used to make gears varies widely, which means the only way to truly know if a gear will peel is to test it. Since brushed motors spin at a lower speed and produce less power overall, you don't need to worry about removing the gears regularly. While it's still technically possible, the gears are more likely to fall off due to your driving habits (such as accelerating when landing from a jump) rather than overusing the gears on the motor itself.

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You won't have cogging problems
Especially with generic or cheap brushless setups, cogging can be a major problem. "Cogging" is when a sensorless brushless motor is over-geared and unable to decide whether to move forward or backward, causing stuttering. Brushed motors don't create gears: they either move or they don't! Brushed motors deliver instant torque from the moment the trigger is pulled and are easier to maintain control at low speeds, making them a popular choice among the RC crawling community.

 

Wiring is easier
Brushed motors use only two wires, while brushless motors use three wires. In a sensored brushless motor, incorrect wiring can actually damage or completely destroy the motor. This is not a problem with brushed motors though: the worst that can happen is that the vehicle is running in the wrong direction! You can correct this problem simply by a.) switching the motor wires, or b.) using the throttle reverse switch on the controller. With fewer wires to deal with, neatly laying out your remote's wiring will be an easy task!

 

Brushed settings are suitable for beginners
While an RC car running 60+MPH that can launch off a skate park ramp and land without a scratch sounds amazing, if you're a complete beginner, that's probably not a realistic starting point. Driving fast takes practice, landing correctly takes skill, and the faster you go, the greater the chance of damage (or injury) to your remote. RC cars powered by brushed motors may not go as fast, but they can be just as fun!

 

 

 
How to Tell  a Motor is Brushed or Brushless
 
 
Check the Appearance

Appearance is often the easiest visual clue to identifying the type of motor. Brushed motors usually have a metal housing with visible rotating parts called "brushes." Brushless motors, on the other hand, are typically more compact and their housing may not expose visible components.

 
Find the Brush

As mentioned earlier, brushed motors contain brushes inside. You can open the motor case and see if you can find the brushes attached to the rotating part of the motor. These brushes are responsible for transferring electrical current to the rotating part to generate electricity.

 
Check the number of Threads

Checking the number of wires connected to the motor can also provide clues. Brushed motors usually have two wires, positive and negative, for power supply. In contrast, brushless motors typically have three or more wires because the electronic control required for rotation is more complex.

 
Find Electronic Controllers

Brushless motors require electronic controllers to manage current supply and rotational phase changes. If you find a small electronic device near the motor, it is most likely the controller for the brushless motor.

 
Consider Operating Characteristics

There are also differences in the operating characteristics of brushed and brushless motors. Brushless motors are generally more efficient, generate less heat, and provide smoother speed control. Brushed motors may generate more friction and heat and have less stable speed control.

 

 

 

How to Choose the Right Electric Brushed Motor
Micro Motor N20
N30 DC Micro Motor
DVD Drive Motors
Smart Water Meter Motor

Motor Diameter
Sizing a brush DC motor to a specific application begins with matching the motor's diameter to the available space. In general, larger frame size motors deliver more torque. Motor diameter ranges from 8 mm to 35 mm.

 

Length
Various lengths are available, ranging from 16.6 mm to 67.2 mm, to best fit the application package requirements.

 

Commutation Type
Precious metal brushes are well adapted to low current density applications, providing low friction and high efficiency, whereas high continuous or peak current applications will require graphite-copper brushes.

 

Bearing Type
Several bearing combinations have been designed, from simple sleeve bearing construction to preloaded ball bearings systems for high axial or radial load applications.

 

Magnet and Commutation Type
Adapt your motor selection to the power and current needs of your application: NdFeB magnets provide higher output torque than Alnico, at a higher cost. The commutation system (type and size of the commutators) is also reflected in this coding.

 

Winding
Various winding options are proposed to best match with the application requirements – voltage, resistance and torque constant are the basic parameters for selection.

 

 

Electric Brushed Vs Brushless Motors, What Are the Differences
 

Commutation method
Brushed motors use mechanical brushes and a commutator to switch the current direction in the windings, which in turn generates a magnetic field to produce torque and rotate the motor.
Brushless motors, on the other hand, utilize electronic control and magnetic sensors (e.g., Hall effect sensors) to switch the current direction in the windings without any mechanical contact. This electronic control is often in the form of an external driver or an integrated electronic speed controller (ESC).

 

Efficiency
Brushless motors are generally more efficient than brushed motors because they don't have the friction and energy losses associated with brushes and commutators. This leads to better performance, longer runtimes, and reduced energy consumption.

 

Maintenance and lifespan
Brushed motors require more maintenance due to the wear and tear on brushes and commutators, which can eventually lead to a decrease in performance and motor failure. Brush replacements are necessary periodically to maintain optimal performance.
Brushless motors have fewer moving parts and no mechanical contacts, which results in a longer lifespan and reduced maintenance requirements.

 

Noise and vibration
Brushless motors usually produce less noise and vibration compared to brushed motors because they don't have brushes or commutators that can cause mechanical noise.

 

Cost and complexity
Brushless motors are generally more expensive and complex due to the requirement of electronic control systems for commutation. However, their advantages in terms of efficiency, lifespan, and maintenance often outweigh the initial cost difference.

 

 
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Our Factory
 

Our team is composed of passionate and dedicated individuals who are committed to delivering the best possible experience to our clients. Facing trouble we will have a effective communication, work together in a cooperative and productive manner, leveraging each other's strengths and abilities, accept diverse solution and way. In order to provide the high quality service and best solution. We have a complete production system for DC micro motor, it concludes 19 Production lines, Purchasing, R&D, Quality Inspection, Transportation(in short distance in China), Sales departments. Quickly reaction, 100% original manufacture. Thus we have serviced for more than 300+ retailers, many DC motors were sold all round the word factories. And won the high praise from them, keep the long win-win relationship.

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FAQ
 

Q: What is an electric brushed motor?

A: An electric brushed motor is an electric motor that uses carbon brushes to conduct current to the rotor (or armature) via commutator segments. This design is common in various applications, from household appliances to industrial equipment, due to its simplicity and robustness.

Q: How does a brushed motor work?

A: In a brushed motor, the brushes make contact with the commutator, which is a segmented cylinder attached to the rotating armature. As the motor rotates, the brushes contact different segments of the commutator, reversing the direction of current to the armature and causing continuous rotation.

Q: What are the main components of a brushed motor?

A: The main components include the stator (the stationary part), the armature (the rotating part), the commutator (a segmented cylinder), and the brushes (conductivity devices that make contact with the commutator).

Q: What are the advantages of a brushed motor?

A: Brushed motors are relatively inexpensive, easy to control, and offer good starting torque. They are also robust and can operate in harsh conditions.

Q: How do brushed motors compare to brushless motors?

A: Brushed motors are simpler and cheaper, but they have higher maintenance due to the need to replace brushes. Brushless motors, while more complex and expensive, offer higher efficiency, longer life, and better speed control.

Q: What is the role of the commutator in a brushed motor?

A: The commutator reverses the current in the armature coils, ensuring that the magnetic field produced by the current always interacts with the stator's magnetic field to produce continuous rotation.

Q: How do i know when to replace carbon brushes?

A: Brushes wear over time and need replacement when their length becomes too short to maintain contact with the commutator effectively. Signs of wear include reduced motor performance and increased sparking at the commutator.

Q: Can brushed motors be used in high-speed applications?

A: Brushed motors can be used in high-speed applications, but the wear on brushes and commutator increases with speed. For very high-speed applications, brushless motors are often preferred.

Q: What is the efficiency of a brushed motor?

A: The efficiency of brushed motors can vary widely, typically ranging from 70% to 90% depending on the motor design and operating conditions.

Q: How are brushed motors controlled?

A: Brushed motors can be controlled by varying the voltage applied to the motor, using a variable resistor (potentiometer), or through electronic speed controllers (ESCs).

Q: What types of applications are brushed motors suitable for?

A: Brushed motors are suitable for a wide range of applications, including fans, pumps, power tools, toys, and small appliances where cost and simplicity are more important than efficiency and longevity.

Q: How do i properly maintain a brushed motor?

A: Regular maintenance includes cleaning the motor and commutator, inspecting and replacing brushes, and lubricating moving parts to ensure smooth operation and prolong motor life.

Q: Can brushed motors operate in reverse?

A: Yes, reversing the polarity of the voltage applied to the motor will reverse the direction of rotation. This is a common way to control direction in brushed motor applications.

Q: What is the life expectancy of a brushed motor?

A: The life expectancy can vary widely depending on usage and maintenance. With proper care, brushed motors can last for many years, although the need to replace brushes and other components will arise over time.

Q: How do i choose the right brushed motor for my application?

A: Consider the power requirements, speed, torque, and duty cycle of your application. Also, consider the operating environment, such as temperature, humidity, and dust levels, which can impact motor performance and longevity.

Q: What are the safety precautions when working with brushed motors?

A: Safety precautions include wearing appropriate personal protective equipment, ensuring the motor is properly grounded, and avoiding touching the motor when it is running to prevent injury from moving parts and electrical shock.

Q: What is the role of the stator in a brushed motor?

A: The stator provides the magnetic field that interacts with the magnetic field of the rotor to create rotational force. It typically consists of a set of coils wound around a ferromagnetic core.

Q: How do I troubleshoot common issues with brushed motors?

A: Common issues include motor not starting, reduced speed, or excessive noise. Troubleshooting steps include checking the power supply, inspecting brushes and commutator, and testing for electrical continuity in the motor windings.

Q: Can brushed motors be repaired or are they usually replaced?

A: Brushed motors can often be repaired by replacing worn components like brushes and commutators. However, in some cases, the cost of repair can be comparable to the cost of a replacement motor.

Q: What are the advantages of using a brushed motor in a DIY project?

A: Brushed motors are inexpensive, easy to find, and simple to control, making them popular choices for hobbyists and DIY projects. They also offer good torque at lower speeds, which can be beneficial for many applications.

We're professional electric brushed motor manufacturers and suppliers in China, specialized in providing high quality customized service. If you're going to buy discount electric brushed motor for sale, welcome to get quotation from our factory. For price consultation, contact us.

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