How To Replace Worn Treadmill Roller Bearings - Treadmill Repair

The bearings on my treadmill went bad and were making horrible scary noises. But my treadmill was still under warranty, so they sent me a brand new rear roller. I replaced the old roller with the new one. On the treadmills I had owned, it has always been the rear roller bearings that have gone bad. Looking at my current treadmill, a Sole F85, the front roller is larger and has larger bearings. So I think that is why they don't fail as fast as the rear roller bearings. But since I had the old roller with the worn bearings, I decided to have some fun and make a new video. So in this video, I show you how to replace the bearings on your treadmill. Afterall, when the warranty expires, you are the warranty. I bought the blind hole bearing puller I use in the video at Harbor Freight, but you can rent them cheaper at many places including auto parts stores. The bearings that were on the roller were labelled 6203Z, and the brand name was TMT. I searched for bearings and found many made in China bearings for cheap, but I had also read many poor reviews for bearings made in China. I found some Nachi (made in Japan) bearings on eBay for less than $6 each and ordered those. The model number on these is 6203ZZE. The Nachi bearings had many great reviews and are supposed to be good quality bearings. I am not an expert on bearings, but I think you want to get "deep groove ball bearing" type bearings for a treadmill. And also bearings that are sealed to keep dirt from getting in them.
I hope this video helps you repair your treadmill and keep it going for many years.
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[@johnkasperowicz2522]

You are very easy to understand. I would never had thought that you could replace the bearings and not the entire rear belt roller. You helped me save money on this problem. I am handy but would never had been able to do this without your video. Great comment on buying quality bearings, as many are inferior quality. Thanks!

[@killasmolik]

Great video worked like a charm. I used the axle to remove bearings “pb blaster and rubber mallet” did the trick. Also when I installing new bearing I used a piece of wood between the hammer and bearing as to not damage the bearing. No more noise and saved me $90 dollars thanks again.

[@billm6294]

Great video! I was able to get Timken bearings 2 for 13 bucks on Amazon vs 130 for a new roller assembly. Thanks for posting this.

[@RockScissorsPaperPress]

Even better than your video on replacing the whole rear roller--thanks so much, tenfold!

[@Usman.Sanaullah]

Very informative video i never opened my treadmill it has gone through lot of hard time. WITH you videos am gona make it good as new again. Thanks you saved me from buying a new treadmill

[@Damm1371]

An easy alternative to the uncommon tool used to remove bearings is a .5" steel rod longer than your roller from your hardware store. Slip it in one side and tap at the other bearing from the opposite side. Worked great

[@almason253]

Thank you! Just replaced mine and I didn't need a puller. I removed both spring clips, tapped the axle through the bearing and used the axle end to knock the bearing back out of the roller. Same for other end.

[@brianames9331]

Great video. This was the last part I needed to keep my 18 yr old True 550ZTX - HRC running. For this model, the rod diameter increases behind the bearing. More effort to knock the rod out, but the bearing comes with it, so purchasing the puller was unnecessary. I used a sledgehammer on the rear, which like other commenters said, caused some mushrooming. A little grinding with a Dremel tool took care of it. I switched to a dead blow hammer for the front, and it worked like a charm. My treadmill took the NACHI Quest 6203ZZE bearings that I got off Amazon. Thanks again!

[@kenbromenschenkel6621]

Great video! Thanks for posting. Was able to replace the bearings too on our F85. Night and day difference.

[@srguy]

shyflirt1, I just replaced the bearings, using your instructive video as my knowledge base, in about five minutes. The new ones are now at work on my treadmill's front roller and the machine is as quiet as the day I bought it, new. Not bad for a five year old machine that gets daily use of about an hour per day. The only other thing I've ever replaced on this unit is the circuit board.

[@TrippKnightly]

This is a great video. I'm somewhat knowledgeable, but didn't know the first thing about what'd be needed to replace the bearings on a roller. Great alterantive to full roller replacement, assuming I can disassemble. But no matter what you've shown me what's involved.

[@atrq91]

your videos are very informative and clear. Thanks

[@aladinoperez4700]

Hello sir. You are really good in your explanations with the necessary details. I will be in touch more often. Thank you very much for your videos and keep going with mores.

[@ternitamas]

I admire people like you with these skills! If I did it myself I'd totally pull a homer simpson and end up saying "why doesn't mine look like that" =(

[@tobytollefsen8802]

Awesome video. Very well done. You need to go to Hollywood. This helped me a lot. Thank you.

[@nmi807]

Just completed doing this on the front roller saving a bunch of money. Thanks for the great tutorial. Similar to others I used the back end of the axle to knock out the bad bearings.

[@TheMeanGreenGoblin]

You Sir, just saved me a couple hundred bucks. THANK YOU VERY MUCH!

[@lussingens]

Excellent advice! Our treadmill (Sole) sounded horrible and I suspected the bearings. The treadmill was still under warranty, so they sent us a brand new rear roller which we replaced. But after I saw your video, I understand that we probably will get problems again due to poor quality bearings. So next time we will follow your advice and replace the bearings with some that have better quality.

[@petr5363]

Thx, changing tomorrow my, so this helped a lot to see in practice how to make it.

[@titanicsauce2152]

you da man RJ, always great instructional vids!