5 Best Treadmill Motor Brushes | Read Before Invest

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When it comes to maintaining a treadmill, one component that often requires attention is the best treadmill motor brushes. These small but crucial parts are vital in ensuring the smooth and efficient operation of the treadmill.

Treadmill motor brushes are small carbon blocks that makes contact with the commutator within the motor, enabling an electrical connection that allows the engine to function correctly. However, the motor brushes can wear out over time and become less effective, resulting in reduced performance and potential breakdowns.

Therefore, it is crucial to invest in high-quality treadmill motor brushes. In this article, we will explore some of the best treadmill motor brushes to ensure your treadmill’s longevity and optimal functioning.



Best Treadmill Motor Brushes: Our top picks


  1. Ironman triad treadmill motor brush
  2. Healthtrainer 95t treadmill motor brush
  3. Treadmill motor brush kit – replacement for proform 6.0 RT
  4. Mcmillan drive motor brush kit works with pacemaster cybex life fitness precor
  5. Keys fitness 5500t treadmill motor brush


Advantages of Using Treadmill Motor Brushes:


  1. Improved Motor Performance:

Treadmill motor brushes transfer electricity to the motor, which then powers the running belt. Over time, these brushes can wear out or become dirty, leading to reduced performance and efficiency. Regularly replacing or cleaning the motor brushes can ensure that your treadmill operates at its best, delivering smooth and consistent power to the motor.

  1. Increased Motor Lifespan:

By maintaining and replacing the motor brushes as needed, you can extend the lifespan of your treadmill’s motor. When the brushes wear out or become dirty, they can cause excessive friction and heat buildup, leading to motor damage. Keeping the brushes in good condition can minimize wear and tear on the motor and prevent costly repairs or replacements.

  1. Cost-Effective:

Replacing treadmill motor brushes is a relatively inexpensive maintenance task compared to repairing or replacing the entire motor. Regularly checking and replacing the brushes can avoid more significant expenses.

  1. Easy DIY Task:

Replacing treadmill motor brushes is a simple task that most treadmill owners can do. Many manufacturers provide detailed instructions on returning the brushes, making it easy for users to perform the task themselves. This eliminates the need to hire a professional and saves time and money.

  1. Prevents Motor Malfunctions:

Worn-out or dirty motor brushes can cause various motor malfunctions, such as erratic speed, sudden stops, or difficulty starting up. Regularly inspecting and maintaining the motor brushes can prevent these issues and ensure the smooth operation of your treadmill. This will allow you a consistent and enjoyable workout experience without interruptions.


Types Of Treadmill Motor Brushes:

Different types of brushes are available, each with unique features and benefits:


  1. Carbon Brushes:

Carbon brushes are the most common type of brushes used in treadmill motors. They are made from carbon and other materials such as copper or graphite.


  • Carbon brushes are known for their durability and ability to withstand high temperatures.
  • They provide a reliable and consistent flow of electricity, making them suitable for heavy-duty use.



  • Carbon brushes require frequent maintenance and replacement. This can be time-consuming and costly, mainly if the treadmill is used frequently.


  1. Graphite Brushes:

Graphite brushes are another popular choice for treadmill motors. They are made from graphite and other materials like carbon or copper.


  • Graphite brushes offer excellent electrical conductivity and low friction, leading to smoother motor operation.
  • They also resist wear and tear, making them a long-lasting option.



  • One of the main drawbacks of graphite brushes is their limited lifespan. Over time, the brushes wear down due to friction and constant use.


  1. Copper Brushes:

Copper brushes are less common but are still used in some treadmill motors. They are made entirely of copper, which provides excellent electrical conductivity.


  • Copper brushes are known for their high performance and ability to handle heavy loads.



  • They may wear out faster compared to carbon or graphite brushes.


  1. Silver Brushes:

Silver brushes are the most premium and high-performance option for treadmill motors. They are made entirely of silver, an excellent conductor of electricity.


  • Silver brushes offer superior conductivity and low resistance, producing efficient motor performance.
  • They can easily handle heavy loads and have a longer lifespan than other types of brushes.



  • Silver brushes can be expensive and unnecessary for all treadmill


  1. Nylon Brushes:

Nylon brushes are a less common option for treadmill motors but still have their advantages. These brushes are made from nylon fibres and offer good electrical conductivity.


  • They are also known for their low friction, resulting in smooth motor operation.
  • Nylon brushes are durable and resistant to wear, making them suitable for regular use.



  • Nylon brushes generate more heat than other brush materials, such as carbon or graphite. This excessive heat can damage the motor over time, leading to reduced performance and even motor failure.


  1. Hybrid Brushes:

Hybrid brushes combine different materials, such as carbon, graphite, and copper, to create a brush with unique properties.


  • These brushes offer a combination of the advantages found in each material. For example, a hybrid brush may have carbon brushes’ durability, copper brushes’ electrical conductivity, and graphite brushes’ low friction.
  • Hybrid brushes are designed to provide optimal performance and longevity for specific treadmill motor requirements.



  • While hybrid brushes are gaining popularity, they may still be less readily available than traditional carbon brushes.


Get Reviews of the Best Treadmill Motor Brushes:

We have reviewed some motor brushes in the market. Here we have presented the 5 best treadmill motor brushes for your easy selection.

  1. Ironman triad treadmill motor brush:


Enhanced performance:

The ironman triad treadmill motor brush is designed to improve the overall performance of your treadmill motor. It helps reduce friction between the motor and the belt, resulting in smoother and more efficient operation. This can lead to a better workout experience with consistent speed and reduced noise levels.

Extended motor lifespan:

By reducing friction, the ironman triad treadmill motor brush can help prolong the lifespan of your treadmill motor. With less wear and tear, the motor is less likely to suffer from overheating or other mechanical issues. This can save you money in the long run by avoiding costly repairs or motor replacements.

Easy installation:

The ironman triad treadmill motor brush is designed for easy installation. It typically comes with clear instructions and can be easily attached to your treadmill’s motor. You don’t need special technical skills or tools, making it a convenient option for those who want to enhance their treadmill’s performance without professional assistance.


The ironman triad treadmill motor brush is more cost-effective than other motor maintenance or repair options. It is relatively affordable and can help prevent expensive motor repairs or replacements in the future. Investing in this accessory can save money in the long run.


  1. Healthtrainer 95t treadmill motor brush:



The motor brush of the healthtrainer 95t treadmill is designed to be highly durable, ensuring a long lifespan for your treadmill. This means you won’t have to worry about replacing the motor brush frequently, saving you time and money.


The motor brush is an essential part of the treadmill’s performance. It helps ensure a smooth and consistent motion during your workout, allowing you to achieve your fitness goals more effectively. The healthtrainer 95t treadmill motor brush is known for its reliable performance, providing a seamless experience every time you use the treadmill.

Easy maintenance:

The motor brush of the healthtrainer 95t treadmill is relatively easy to maintain. Regular cleaning and occasional lubrication will keep it in good condition and prolong its lifespan. This makes it convenient for individuals who prefer low-maintenance fitness equipment.


  1. Treadmill motor brush kit :



Purchasing a motor brush kit is generally more affordable than buying a brand-new motor. This replacement kit allows you to extend the lifespan of your treadmill without breaking the bank.

Easy installation:

The treadmill motor brush kit: replacement for pro form 6.0 rt is designed to be user-friendly and can easily be installed by most individuals. It comes with clear instructions and requires no specialized tools or skills.

Restores performance:

Over time, the brushes in a treadmill motor can wear down, leading to decreased performance and efficiency. By replacing the brushes with this kit, you can restore the motor’s optimal performance and extend the overall lifespan of your treadmill.

Compatible with proform 6.0 rt:

This brush kit is designed to be compatible with the proform 6.0 rt treadmill model. This ensures a perfect fit and compatibility, eliminating guesswork or compatibility issues.


  1. Mcmillan drive motor brush kit :


Compatibility with multiple brands:

The mcmillan drive motor brush kit is designed to work with pacemaster, cybex, life fitness, and precor machines. This ensures you can use the kit for various fitness equipment models from these popular brands.

Ease of installation:

The kit comes with easy-to-follow installation instructions, making it straightforward for users to replace the motor brush themselves. This eliminates the need for professional assistance or costly repairs.

Affordable solution:

Using a motor brush kit is more cost-effective than replacing the entire motor. The mcmillan drive motor brush kit is reasonably priced, making it a budget-friendly choice for those looking to extend the life of their fitness equipment.

Improved performance:

A worn-out motor brush can lead to decreased performance and efficiency of the fitness equipment. Replacing it with the mcmillan drive motor brush kit can restore the motor’s functionality and improve overall performance.


  1. Keys fitness 5500t treadmill motor brush:



The keys fitness 5500t treadmill motor brush is known for its long-lasting durability. This means you won’t have to worry about replacing it frequently, saving you time and money in the long run.


This motor brush offers excellent performance, ensuring smooth and efficient operation of your treadmill. It provides consistent power output, helping you achieve your fitness goals without interruptions or slowdowns.


The keys fitness 5500t treadmill motor brush is designed to be compatible with a wide range of treadmill models. This makes it easier for users to find a replacement brush that fits their specific treadmill model, eliminating the need for extensive research or guesswork.

Easy installation:

Installing the keys fitness 5500t treadmill motor brush is relatively straightforward. It comes with clear instructions and requires minimal tools, making it convenient for users to replace the brush without professional assistance.


Treadmill Motor Brushes| Maintenance Tips


How often do they need to replace?

  • Treadmill motor brushes are typically made of carbon, which has a limited lifespan.
  • On average, treadmill motor brushes must be replaced every 1,000 to 2,000 hours of use.
  • However, this can vary depending on the quality of the brushes and how frequently the treadmill is used.


When they need to replace:

Several signs indicate it is time to replace the treadmill motor brushes. Includes:

  1. Excessive noise or vibration:

If you notice increased noise or vibration from your treadmill, it could be a sign that the motor brushes are worn down and not making proper contact with the commutator.

  1. Erratic speed or power fluctuations:

If your treadmill’s speed is inconsistent or you experience sudden changes in power while using the machine, it may indicate that the motor brushes are no longer functioning effectively.

  1. Sparking or arcing:

If you see sparks or arcing coming from the motor area of your treadmill, it is a clear indication that the motor brushes need replacement. This can be dangerous and should be addressed immediately.

  1. Reduced performance:

If you notice a decrease in overall performance, such as slower speeds or difficulty starting up, it could be due to worn-out motor brushes.


How to replace the motor brushes:

The exact steps for replacing motor brushes may vary depending on your treadmill model. However, here are some general guidelines to follow:

  1. First, ensure that the treadmill is unplugged and turned off.
  2. Locate the motor compartment of your treadmill. This is usually at the front or back of the machine.
  3. Remove any screws or fasteners holding the motor compartment cover in place and carefully remove the cover.
  4. Locate the motor brushes. They are typically attached to a bracket on either side of the motor and connected to the engine with wires.
  5. Carefully disconnect the wires from the old brushes. Take note of which wire connects to each brush for reinstallation.
  6. Remove the old brushes from their brackets. They may be held in place with screws or clips.
  7. Install the new brushes into the brackets, ensuring they are securely in place.
  8. Reconnect the wires to the new brushes, matching the correct wire to each brush.
  9. Replace the motor compartment cover and secure it with screws or fasteners.
  10. Plug in the treadmill and turn it on to test if the new motor brushes are functioning correctly.


Factors to Consider While Choosing Treadmill Motor Brushes:


When choosing the best treadmill motor brushes, there are a few factors to consider. The brushes’ quality can significantly impact your treadmill’s overall performance and longevity. Here are some essential factors to keep in mind when selecting motor brushes:


  1. Material:

Treadmill motor brushes are typically made from carbon or graphite materials. Carbon brushes are the most common choice, as they have good conductivity and durability. Graphite brushes are also popular, as they offer similar performance to carbon brushes but are more expensive.

  1. Size:

Choosing motor brushes that are the correct size for your treadmill’s motor is essential. These brushes come in various sizes, so check your treadmill’s specifications or consult the manufacturer for the appropriate brush size.

  1. Compatibility:

Not all motor brushes are compatible with every treadmill model. It’s crucial to ensure that the brushes you choose are specifically designed for your treadmill’s make and model. This information can usually be found in the treadmill’s user manual or by contacting the manufacturer directly.

  1. Durability:

Look for motor brushes that are known for their durability and long lifespan. The last thing you want is to replace your motor brushes due to wear and tear constantly. Look for brushes made from high-quality materials with a reputation for longevity.

  1. Ease of Installation:

Choose motor brushes that are easy to install or replace. Look for brushes with clear instructions or tutorials to help you with installation.

  1. Performance:

Consider the performance of the motor brushes. Look for brushes that provide a smooth and consistent electrical connection, allowing the motor to operate efficiently. Good motor brushes should also minimize noise and vibration during operation.

  1. Price:

Price is also an essential factor to consider when choosing motor brushes. While opting for the cheapest option is tempting, remember that higher-quality brushes often come with a slightly higher price tag. It’s worth investing in motor brushes known for their performance and durability, even if they cost a bit more upfront.


In conclusion:

Using treadmill motor brushes offers several advantages. Maintaining and replacing them as needed can improve motor performance, save money on costly repairs or replacements, efficiently perform the task yourself, and prevent motor malfunctions. If you own or plan to purchase a treadmill, understanding the basics of motor brushes can help you troubleshoot any issues and prolong the lifespan of your equipment.


FAQs for The Best Treadmill Motor Brushes:


What are motor brushes, and what do they do on a treadmill?

Motor brushes are small carbon blocks that make contact with the commutator of the treadmill’s motor. They are responsible for transferring electrical current from the power source to the motor and keeping the engine running smoothly. As the motor spins, the brushes wear down over time and may need to be replaced.

Can I replace the motor brushes myself?

Yes, replacing motor brushes is typically a task the treadmill owner can do. However, it is essential to note that this process requires some technical knowledge and skills. If you are uncomfortable working with electrical components or need clarification on the procedure, it is recommended that you seek professional assistance.

Where can I purchase replacement motor brushes?

Replacement motor brushes can be purchased from treadmill manufacturers, authorized dealers, or online retailers specializing in fitness equipment parts. It is essential to ensure you buy the correct brushes compatible with your specific treadmill model.



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