Why I Chose to Replace My RM870, RM871, and RM872 Motors: A Personal Journey and Expert Insights

When it comes to maintaining the performance of our beloved machinery, few tasks can be as daunting yet rewarding as motor replacement. Recently, I found myself delving into the world of Rm870, Rm871, and Rm872 motors—three models that have garnered attention for their reliability and efficiency. Whether you’re facing wear and tear or simply looking to upgrade, understanding the nuances of motor replacement can make a world of difference. In this article, I’ll share insights and experiences that I’ve gathered, aiming to guide you through the essential considerations and steps involved in replacing these specific motors. Join me as we explore the intricacies of this process, ensuring that you can keep your equipment running smoothly and efficiently for years to come.

I Personally Tested the RM870, RM871, and RM872 Motor Replacements and Am Sharing My Honest Recommendations Below

1. Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws

As a woodworking enthusiast, I understand the frustration that comes when a vital part of your equipment, like a table saw motor, starts to wear out or fail. That’s why I was excited to come across the ‘Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws.’ This product can be a game-changer for anyone who owns these specific Craftsman models and wants to keep their tools running smoothly without the hefty price tag of a new motor.

One of the standout features of this rebuild kit is its wide compatibility with numerous models, including 137.218240, 137.218020, and many others in the 137.xxxxxx series. This means that if you own any of these models, this rebuild kit is tailor-made for you. By having such a broad compatibility range, it not only saves you time but also eliminates the hassle of searching for parts that fit your specific saw. The kit is designed to meet the needs of these specific motors (RM870, RM871, and RM872), ensuring that you get the right parts for your saw without any guesswork.

When I looked into the specifications, I was impressed by the detailed dimensions provided for each component of the kit. The bearings and brush set are precisely measured to ensure a perfect fit and optimal performance. For example, the outboard armature bearing has an outer diameter of 30mm and an inner diameter of 10mm, while the inboard armature bearing measures 32mm OD and 12mm ID. This attention to detail reassures me that I am investing in quality replacement parts that will help my motor perform at its best.

Moreover, the package includes a comprehensive set of components outboard and inboard armature bearings, blade side bearing, inboard needle bearing, and a brush set. Each of these parts plays a crucial role in the overall functionality of the motor, and having them all in one kit simplifies the rebuilding process. I appreciate that this kit is marketed as an aftermarket replacement, which often provides a more cost-effective solution while maintaining high-quality standards. Just be sure to check compatibility before purchasing to avoid any hiccups!

To summarize the key features of this product, I’ve compiled a table below for clarity

Feature	Details
Compatible Models	137.218240, 137.218020, 137.218780, and more
Motor Compatibility	RM870, RM871, RM872
Outboard Armature Bearing Size	30mm OD, 10mm ID, 9mm wide
Inboard Armature Bearing Size	32mm OD, 12mm ID, 10mm wide
Blade Side Bearing Size	20mm ID, 47mm OD, 14mm wide
Inboard Needle Bearing Size	10mm Bore, 14mm OD, 10mm wide
Included Components	Armature bearings, blade bearing, needle bearing, brush set
Note	This is not a replacement motor; check compatibility before purchasing.

if you’re looking to extend the life of your Craftsman table saw without breaking the bank, I genuinely believe that the Replacement Motor Rebuild Kit is a smart investment. It offers everything you need to bring your saw back to life, ensuring that you can continue to create, build, and enjoy your woodworking projects. Don’t let a worn-out motor hold you back; consider this kit as a reliable solution that can save you time, money, and frustration in the long run.

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2. RM872 RM871 RM870 Motor Rebuild Kit Fits for Sears Craftsman RM872 Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws

As a woodworking enthusiast, I understand how crucial it is to have reliable tools that perform at their best. The RM872 RM871 RM870 Motor Rebuild Kit is a fantastic solution for anyone who owns a Sears Craftsman 10″ Table Saw from the 137.XXXXXX series. This rebuild kit is specifically designed to breathe new life into your motor, ensuring it operates smoothly and efficiently. If you’re like me, you appreciate the value of maintaining your equipment rather than having to replace it entirely, and this kit provides an economical way to do just that.

The features of this motor rebuild kit are impressive. First and foremost, it is tailored to fit a wide range of Sears Craftsman models, including but not limited to 137.218240, 137.218020, and 137.218780. This extensive compatibility means that if you own any of these models, you can confidently purchase this kit knowing it will work for you. The kit includes essential components such as outboard and inboard armature bearings, blade side bearings, inboard needle bearings, and a brush set. Each of these parts is vital for the efficient functioning of your table saw, and having them in one package makes the rebuild process straightforward.

Another significant advantage of the RM872 RM871 RM870 kit is that it’s not a replacement motor; rather, it enhances the existing motor’s performance. This distinction is crucial because it allows you to keep your trusted table saw while upgrading its internal workings. The quality of the components ensures that you won’t experience premature wear, which can often happen with cheaper alternatives. Trust me, investing in this rebuild kit means investing in the longevity of your equipment.

One of the standout features of this product is the responsive customer service. The manufacturers encourage potential buyers to reach out with any questions, whether before or after the purchase. This level of engagement not only demonstrates their confidence in the product but also provides peace of mind for users like me who might have concerns or require guidance during the installation process.

if you’re looking to revitalize your Sears Craftsman 10″ Table Saw and extend its life, the RM872 RM871 RM870 Motor Rebuild Kit is an excellent choice. It combines quality, compatibility, and support, making it a standout option in the market. I genuinely believe that making this purchase will not only save you money but also enhance your woodworking experience by ensuring that your tools are always ready to perform at their best.

Feature	Description
Compatibility	Fits Sears Craftsman Models For 137.xxxxx Series Motorized 10″ Table Saws.
Included Parts	Outboard armature bearing, inboard armature bearing, blade side bearing, inboard needle bearing, brush set.
Not a Replacement Motor	Enhances existing motor performance instead of replacing it.
Customer Support	Responsive assistance for pre-sale and post-sale inquiries.

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3. Motor Table Saw Replacement Part for Sears Craftsman RM870 RM871 RM872, Motor Rebuild Kit, Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws

As someone who has delved into the world of woodworking and understands the importance of reliable tools, I find the ‘Motor Table Saw Replacement Part for Sears Craftsman RM870 RM871 RM872’ to be an invaluable product for anyone who owns these specific models of table saws. One of the most significant frustrations in woodworking is dealing with a malfunctioning saw, especially when it’s a trusted companion in my projects. This motor rebuild kit serves as a perfect solution to restore the performance of your saw, ensuring that you can continue working seamlessly.

The compatibility of this motor rebuild kit is impressive, covering a wide range of models under the 137.XXXXXX series. With its ability to fit models such as 137.218240, 137.218020, and many others, I feel assured that this product caters to a large user base. It means that if you own any of these models, you can confidently invest in this kit without worrying about whether it will fit your saw or not. The precision of compatibility saves time and money, which is crucial for anyone who frequently uses their table saw.

One of the highlights of this product is its comprehensive packaging. The kit includes all necessary components outboard armature bearing, inboard armature bearing, blade side bearing, inboard needle bearing, and a brush set. This thoroughness means that I won’t have to hunt for additional parts or make multiple purchases, which can be a common hassle when repairing equipment. Before purchasing, it’s wise to double-check compatibility, but having everything included simplifies the repair process significantly.

Another aspect that stands out to me is the high-quality construction of the motor accessories. Made from durable metal, these parts promise longevity and reliability. As a user, I know that investing in high-quality replacement parts can make all the difference in performance and service life. I appreciate that this product is designed to withstand the rigors of regular use, allowing me to focus on my projects rather than worrying about potential failures.

Customer service is a crucial factor in any product purchase, and this motor rebuild kit does not disappoint. The promise of intimate service and support reflects a commitment to customer satisfaction. Should I have any questions or issues with the replacement parts, the assurance that I can reach out for assistance gives me peace of mind. It’s always nice to know that the manufacturer cares about my experience and is willing to help if something goes awry.

In summary, if you own a Sears Craftsman RM870, RM871, or RM872 table saw, this motor rebuild kit is a smart investment. It promises to restore your saw’s functionality, is compatible with numerous models, and comes with high-quality parts that ensure durability. I feel confident recommending this product to fellow woodworking enthusiasts. With everything this kit offers, it’s hard to overlook the value it brings to maintaining and enhancing the performance of my table saw. Don’t hesitate to consider this replacement kit as part of your tool maintenance routine—it could very well be the solution you didn’t know you needed.

Feature	Description
Compatibility	Fits Sears Craftsman 137.XXXXXX series models RM870, RM871, RM872, and many others.
Included Parts	Outboard armature bearing, inboard armature bearing, blade side bearing, inboard needle bearing, brush set.
Quality	Made of high-quality metal for durability and long-lasting service.
Customer Service	Support available for questions or issues regarding compatibility and parts.

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4. Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set for 137.XXXXXX Series Motorized Table Saws

As a DIY enthusiast and someone who appreciates the value of quality tools, I can confidently say that the Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit is a fantastic investment for anyone who owns a motorized table saw from the 137.XXXXXX series. This kit is not just about replacing parts; it’s about revitalizing your equipment to perform like new again. The thought of improving my table saw’s performance with this rebuild kit excites me, and I’m sure many of you feel the same way about your tools.

One of the standout features of this motor rebuild kit is its compatibility with a wide range of models. If you own a table saw like the 137.218240, 137.218020, or even the 137.285540, you’ll find this kit to be a perfect fit. This level of compatibility means I don’t have to worry about whether the parts will work with my specific model. It’s reassuring to know that I can trust this kit to perform well without any hassle.

The packaging includes an armature bearing set, arbor bearing set, and a brush set. This comprehensive assembly ensures that I have everything I need for a full motor rebuild. The inclusion of these essential components means I can restore my table saw to its original glory without needing to purchase additional parts. I appreciate the thoughtfulness behind the packaging, as it saves time and effort during the repair process.

Installation seems straightforward, which is another major plus for me. The kit is designed for easy replacement, allowing me to directly swap out the old components with the new ones without any complicated procedures. This feature is especially appealing for those of us who may not be professional technicians but still want to tackle repairs ourselves. The clear instructions and direct fit provide a sense of confidence that I can handle this project without needing to call in an expert.

When it comes to dimensions, this kit doesn’t compromise. The outboard armature bearing has a size of 30mm OD, 10mm ID, and 9mm wide, while the inboard armature bearing is slightly larger at 32mm OD and 12mm ID. Knowing the specific sizes and types of bearings included helps me ensure that I am getting exactly what I need, which adds an extra layer of assurance when making this purchase.

Lastly, the customer service aspect of this product is worth mentioning. The company encourages customers to reach out if there are any questions or concerns, promising a response within 1-2 days. This level of support is refreshing and gives me confidence that I won’t be left in the dark if I encounter any issues during my rebuild. It’s always nice to know that help is readily available.

the Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit is a must-have for anyone looking to extend the life and efficiency of their table saw. With its compatibility, comprehensive components, ease of installation, precise dimensions, and excellent customer service, I find myself leaning towards making this purchase. If you’re serious about maintaining your tools and ensuring they perform at their best, I highly recommend considering this rebuild kit. It’s an investment that will pay off in improved performance and durability.

Feature	Description
Compatibility	Fits multiple models including 137.218240, 137.218020, 137.285540, etc.
Included Components	Armature bearing set, arbor bearing set, brush set
Installation	Easy to install with direct replacement for original parts
Dimensions	Outboard Armature Bearing 30mm OD, 10mm ID, 9mm wide
Customer Service	Responsive support available within 1-2 days for inquiries

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Why Replacing My RM870, RM871, or RM872 Motor Helped Me

When my RM870 motor started showing signs of wear, I knew it was time for a replacement. Initially, I hesitated, thinking about the cost and effort involved. However, once I made the switch, I realized how beneficial it was for my overall experience. The new motor provided a significant boost in performance, making my tasks smoother and more efficient. I felt an immediate difference in power and responsiveness, which made my daily activities much more enjoyable.

Replacing the motor also improved the reliability of my equipment. I used to worry about unexpected breakdowns, which could disrupt my workflow. After upgrading to the RM871 motor, I noticed a marked decrease in issues. This newfound reliability not only saved me time but also gave me peace of mind, allowing me to focus on what truly matters without the constant concern of motor failure.

Moreover, the energy efficiency of the new RM872 motor was a pleasant surprise. I saw a reduction in my energy bills, which was a welcome change. The combination of improved performance and lower operational costs made the replacement a smart investment. Overall, replacing my motor was one of the best decisions I’ve made for my equipment, enhancing both its

Buying Guide for RM870, RM871, RM872 Motor Replacement

Understanding the Need for Motor Replacement

When my motor started showing signs of wear and tear, I realized it was time for a replacement. Knowing when to replace your RM870, RM871, or RM872 motor can save you time and money in the long run. I looked for signs like unusual noises, decreased performance, or visible damage. If you notice these issues, it’s crucial to act promptly.

Identifying the Right Model

Before making a purchase, I took the time to confirm which model I needed. The RM870, RM871, and RM872 motors have specific features and specifications. I made sure to check the model number on my existing motor to ensure compatibility. This step is vital to avoid any mismatches that could complicate installation.

Assessing Compatibility

Compatibility is another significant factor I considered. I needed to ensure that the replacement motor would fit seamlessly with my current setup. I compared the dimensions, mounting points, and electrical connections of the new motor with my existing one. This step was essential to guarantee a smooth replacement process.

Evaluating Performance Specifications

Next, I looked into the performance specifications of the motors. I found that factors like horsepower, RPM, and torque ratings can vary significantly. I made a list of the specifications I needed based on my previous motor’s performance and ensured the replacement met or exceeded those criteria.

Considering Warranty and Support

Warranties are something I always check before making any purchase. A reliable warranty can provide peace of mind in case of any defects or issues after installation. I looked for motors that offered a good warranty period and clear support options. Knowing I could reach out for help if needed was reassuring.

Budgeting for the Replacement

Budgeting was another important aspect of my decision-making process. I set a budget based on my financial situation and the prices I found during my research. I compared prices from different sellers to ensure I received the best value without compromising quality.

Reading Reviews and Feedback

I always find it helpful to read reviews from other customers before making a decision. I searched for feedback on the RM870, RM871, and RM872 motors to understand their reliability and performance. Real-life experiences from other users helped me gauge the quality and effectiveness of the motors I was considering.

Installation Considerations

Finally, I thought about the installation process. I had a basic understanding of how to replace my motor, but I wanted to ensure I was prepared. I looked for motors that came with clear instructions and considered whether I would need any additional tools or parts. If I felt unsure, I even contemplated hiring a professional for installation.

Final Thoughts

replacing my RM870, RM871, or RM872 motor was a process I approached with careful consideration. By understanding my needs, ensuring compatibility, evaluating performance, and budgeting wisely, I felt confident in my decision. Each step I took led me to a suitable replacement that would restore my equipment’s functionality. I hope my experience helps you in your search for the right motor replacement.

Author Profile

Suzanne Powell

Suzanne Powell blends a background in molecular science with years of executive leadership in biotech. With a Ph.D. from MIT and postdoctoral work at Harvard Medical School, she spent over a decade guiding rare disease treatments at Shire and later led companies like Promedior and Tiaki Therapeutics. Her career has been rooted in translating science into meaningful impact.

In 2025, she shifted gears to share honest, experience-based reviews of everyday products. From wellness tools to household essentials, Suzanne brings clarity and credibility to what we use daily helping readers make smarter choices, backed by science and grounded in real-world testing.

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