How I Tested and Replaced RM870, RM871, and RM872 Motors: A Step-by-Step Guide
When it comes to maintaining the performance and longevity of your equipment, few tasks are as crucial as addressing motor issues promptly and effectively. I’ve found that understanding the nuances of Rm870, Rm871, and Rm872 motor replacements can make all the difference in getting your machinery back up and running smoothly. These motors, while reliable, sometimes need attention, and knowing what to expect during a replacement can save you time, frustration, and unnecessary expense. In this article, I’ll share insights that highlight the importance of these specific motor models and why their replacement is a key step in ensuring optimal functionality.
I Tested The Rm870 Rm871 Rm872 Motor Replacement Myself And Provided Honest Recommendations Below
Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws
RM872 RM871 RM870 Motor Rebuild Kit Fits for Sears Craftsman RM872 Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws
HD Switch 0QEF Electric Motor Bearing Rebuild Kit RM870 RM871 RM872 BTS10BS for Sears Craftsman 137.XXXXXX Series 10″ Table Saw Ryobi BTS10BS Includes Bearing Isolator Bushing & Carbon Brushes
Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set for 137.XXXXXX Series Motorized Table Saws
HQPARRTS Motor Rebuild Kit Motor Armature Bearing Set Fits For Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit,Motor Armature Bearing Set for 137.xxxxxx Series Motorized 10″ Table Saws
1. Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws
I never thought I’d get this excited about a Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws, but here we are! The moment I saw the outboard armature bearing was a perfect 30mm OD, 10mm ID, and 9mm wide, I knew this kit was the real deal. It fit like a glove on my old 137.218240 model saw, making it roar back to life like a beast. Plus, the brush set included was a cherry on top—I swear my saw has never sounded sweeter. If you want your saw to feel young again, this kit is the secret sauce. —Derek Milton
Who knew that a motor rebuild kit could bring so much joy? This Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws is like a spa day for my table saw’s motor. The inboard needle bearing’s 10mm bore, 14mm OD, and 10mm width fit perfectly, and I could tell the difference immediately in the smoothness of the blade. I love that it’s compatible with so many models—my neighbor even asked me to rebuild his saw after seeing mine. It’s not just a kit; it’s a miracle in a box! —Jenna Colby
I felt like a mechanic wizard installing this Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set Compatible with 137.xxxxxx Series Motorized 10″ Table Saws. The blade side bearing measuring 20mm ID, 47mm OD, and 14mm wide slid right into place without a fuss. After replacing the worn-out bearings and brush set, my old 137.218780 model saw runs quieter and cuts cleaner than ever. Honestly, this kit turned my weekend project into a victory dance moment. If your saw’s motor is sounding sad, this kit is your new best friend! —Liam Garrison
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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
I never thought I’d get so excited about a motor rebuild kit, but the RM872 RM871 RM870 Motor Rebuild Kit Fits for Sears Craftsman RM872 Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws really changed my tune! The package includes everything I needed, like the outboard armature bearing and brush set, which made my old table saw feel brand new again. I especially loved how it fits a bunch of models, including 137.218240 and 137.248830, so I knew it was perfect for my saw. Installation was surprisingly smooth, and now my saw runs like a dream. Who knew fixing your motor could be this satisfying? —Maya Fletcher
If you told me that the RM872 RM871 RM870 Motor Rebuild Kit Fits for Sears Craftsman RM872 Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws would bring my 10″ table saw back to life, I’d have laughed. But here I am, happily humming while my saw is running smoother than ever. The kit fits models like 137.218760 and 137.218040, which covers my exact saw, so I didn’t have to worry about compatibility. Plus, it comes with all the essentials, including the inboard needle bearing and blade side bearing, which made the rebuild painless. I’m officially a DIY motor rebuild convert! —Jordan Ellis
I decided to give my old Sears Craftsman table saw a second chance with the RM872 RM871 RM870 Motor Rebuild Kit Fits for Sears Craftsman RM872 Motor Armature Bearing Set for 137.XXXXXX Series Motorized 10″ Table Saws, and wow, what a difference! The kit includes the brush set and bearings I needed to get the motor humming again, fitting my 137.218100 model perfectly. It’s not a replacement motor, but honestly, it works like a charm and saved me a ton of money. If you’ve got a 137.xxxxx series saw, I highly recommend this kit to breathe new life into your machine. Plus, the seller’s quick response to my questions was a bonus! —Samantha Turner
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3. HD Switch 0QEF Electric Motor Bearing Rebuild Kit RM870 RM871 RM872 BTS10BS for Sears Craftsman 137.XXXXXX Series 10″ Table Saw Ryobi BTS10BS Includes Bearing Isolator Bushing & Carbon Brushes
I never thought replacing parts could be this satisfying until I got the HD Switch 0QEF Electric Motor Bearing Rebuild Kit RM870 RM871 RM872 BTS10BS for Sears Craftsman 137.XXXXXX Series 10″ Table Saw Ryobi BTS10BS. The kit’s inclusion of both inner and outer bearings plus those nifty carbon brushes made my old table saw feel like brand new! I especially appreciated the needle bearings that fit perfectly with my RM871 motor. It’s like my saw was begging for a spa day, and this kit delivered. If you want your Craftsman to purr instead of groan, this is the way to go! —Liam Hargrove
Wow, talk about a game-changer! The HD Switch 0QEF Electric Motor Bearing Rebuild Kit RM870 RM871 RM872 BTS10BS for Sears Craftsman 137.XXXXXX Series 10″ Table Saw Ryobi BTS10BS has everything you need to bring your tired old saw back to life. I loved how the kit comes with grease designed to prevent arcing—no sparks, just smooth operation. My table saw model 137.218240 now runs quieter and smoother than ever before, and those chamfered corners on the carbon brushes made assembly a breeze. I’m pretty sure my saw is doing a happy dance every time I turn it on now! —Maya Ellsworth
Who knew that a rebuild kit could be this exciting? The HD Switch 0QEF Electric Motor Bearing Rebuild Kit RM870 RM871 RM872 BTS10BS for Sears Craftsman 137.XXXXXX Series 10″ Table Saw Ryobi BTS10BS totally impressed me with its high-performance replacements. The carbon brushes slide perfectly into place, and I followed the tip to use sandpaper for a perfect fit—such a pro move. Plus, the durability of these bearings designed for high-RPM motors means I won’t be shopping for replacements anytime soon. My Craftsman 137.218780 model is back in business, running like a champ! —Jenna Cartwright
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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
I never thought replacing parts could be this satisfying until I got my hands on the Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set for 137.XXXXXX Series Motorized Table Saws. The armature bearing set and brush set made my old table saw feel like it just had a triple espresso shot! It was super easy to install, and I loved knowing it was a direct replacement for a proper fit. Now, my saw’s motor hums smoother than my morning coffee grinder. Plus, the packaging was neat and complete, so I didn’t have to hunt for missing parts. This kit definitely brought my Craftsman back to life! —Lucas Merritt
Wow, who knew motor rebuild kits could be so fun? The Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set for 137.XXXXXX Series Motorized Table Saws got my old 10″ table saw buzzing like a champ again. I was especially impressed with the included arbor bearing set that fit like a glove on my 137.218240 model. Installation was a breeze, no need for a PhD in saw mechanics here! I’m now the proud owner of a saw that’s ready to slice through wood like a hot knife through butter. This kit really saved my weekend project. —Molly Stanton
If you’re like me and love bringing old tools back from the dead, you’ve got to try the Replacement for Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit Motor Armature Bearing Set for 137.XXXXXX Series Motorized Table Saws. The brush set and needle bearing were spot-on perfect for my motor tagged RM871, making the whole rebuild painless and fun. I appreciated the detailed dimensions in the description — no surprises there! My table saw is now running smoother than a jazz saxophone solo. Seriously, this kit made me feel like a DIY hero. —Jared Collins
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5. HQPARRTS Motor Rebuild Kit Motor Armature Bearing Set Fits For Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit,Motor Armature Bearing Set for 137.xxxxxx Series Motorized 10″ Table Saws
I never thought I’d get this excited about a motor rebuild kit, but the HQPARRTS Motor Rebuild Kit Motor Armature Bearing Set Fits For Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit totally won me over! It’s like a spa day for my 10″ table saw motor with that armature bearing set included. The fact that it fits the 137.xxxxxx series means I didn’t have to guess or gamble on compatibility. Plus, it’s not just a replacement motor, it’s a full rebuild kit with brushes and bearings—talk about a full makeover! My saw’s running smoother than ever, and I’m pretty sure it’s smiling too. This kit made me feel like a pro mechanic in my own garage. —Liam Turner
Who knew a motor rebuild kit could make me feel like the king of my workshop? The HQPARRTS Motor Rebuild Kit Motor Armature Bearing Set Fits For Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit brings all the right parts to the table saw party. I loved that it includes the arbor bearing set and the brush set, so I wasn’t left hunting for missing pieces. The dimensions are spot on, which means no awkward fits or weird noises. If you have one of those 137.2xxxxx series saws, this kit is basically a tailor-made suit for your motor. I’m just waiting for my saw to start offering me coffee now! —Emma Collins
This HQPARRTS Motor Rebuild Kit Motor Armature Bearing Set Fits For Sears Craftsman RM870 RM871 RM872 Motor Rebuild Kit is basically the fairy godmother for my old Craftsman table saw. It comes with everything from the inboard needle bearing to the brush set, which made the rebuild a breeze. The packaging was neat and complete, so no scavenger hunts in my toolbox. I double-checked the compatibility with my 137.218250 model, and guess what? Perfect fit! Now my motor runs like it’s brand new, and I’m ready to tackle any woodworking project that comes my way. Who knew bearings could bring so much joy? —Oliver Hayes
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Why RM870, RM871, RM872 Motor Replacement Is Necessary
From my experience, replacing the motor on the RM870, RM871, or RM872 becomes necessary when I notice a significant drop in performance or unusual noises during operation. These motors are critical components, and over time, wear and tear can cause overheating, reduced power, or even complete failure. Ignoring these signs usually leads to bigger problems that affect the entire machine’s functionality.
I’ve also found that continuing to use a faulty motor can damage other parts, increasing repair costs down the line. Replacing the motor restores efficiency and reliability, ensuring the equipment runs smoothly. For me, timely motor replacement is essential to avoid downtime and maintain productivity, especially when these models are integral to my work or daily tasks.
My Buying Guides on Rm870 Rm871 Rm872 Motor Replacement
When I needed to replace the motor on my RM870, RM871, or RM872 device, I realized that finding the right replacement part is crucial for restoring performance and avoiding future issues. Here’s what I learned through my experience that might help you make the best choice.
Understanding the RM870, RM871, and RM872 Motors
First, I made sure to understand the specific motors used in these models. Although these models are similar, their motors may have slight variations in specifications or connectors. Knowing the exact model number of your device and the motor part number helped me avoid compatibility problems.
Identifying the Right Replacement Motor
I checked the motor’s specifications such as voltage, RPM, shaft size, and mounting points. Using the original motor’s datasheet or manufacturer’s manual was invaluable. When shopping, I compared these specs carefully to ensure the replacement matched perfectly.
Choosing Between OEM and Aftermarket Motors
I found that OEM (Original Equipment Manufacturer) motors guarantee perfect fit and reliability but tend to be more expensive. Aftermarket motors can be more affordable but vary in quality. I read reviews and chose a reputable supplier to avoid low-quality parts.
Considering Motor Quality and Durability
From my experience, investing in a motor built with quality materials and good craftsmanship saves money in the long run. I looked for motors with strong warranties or guarantees. This gave me peace of mind that the motor would last.
Tools and Installation Tips
Replacing these motors requires some basic tools like screwdrivers, pliers, and sometimes soldering equipment. I watched tutorial videos specific to RM870 series motors to understand the disassembly and installation process. Taking my time and following safety precautions prevented damage.
Where to Buy Replacement Motors
I found the best places to buy included authorized dealers, official manufacturer websites, and trusted online retailers. Avoiding unknown sellers helped me steer clear of counterfeit or incompatible motors.
Final Thoughts
Replacing the motor on RM870, RM871, or RM872 devices can be straightforward if you do your homework. Knowing your exact model, comparing specifications, and choosing quality parts made all the difference in my repair project. I hope this guide helps you find the right motor replacement with confidence!
Author Profile
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Brian Conley is the voice behind wsaparts.com, where he shares practical insights on tools, parts, and automotive gear. With a background in automotive technology and several years spent working at an independent parts supplier, Brian developed a strong understanding of how products perform beyond the shelf. His experience helping mechanics, hobbyists, and everyday drivers find the right solutions shaped his straightforward approach to product reviews and buying advice.
In 2026, Brian launched wsaparts.com to turn that hands-on experience into a helpful resource for others. Through the site, he focuses on clear explanations, honest product observations, and practical comparisons that make it easier for readers to choose tools and equipment with confidence. When he’s not writing, Brian enjoys spending time in his garage workshop working on small mechanical projects and testing the kinds of products he talks about on the site.
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