If you have a Harbor Freight rock tumbler...
...then you know how often the belts break. At $2.99 each to replace, it adds up, and it's frustrating!
Go to http://www.oringwarehouse.com/, and order the size -342 70-durometer Nitrile O-rings. Yes, you are seeing the price correctly; they are twelve cents each. The minimum order is five dollars - yes, that's 42 O-rings - and shipping is around nine, so for $14 you will end up with a lifetime supply of replacement belts. And these don't break often, at all. You're welcome. :D |
I had the same problem, but found a vacuum belt that fixes it and was able to get one from the local vac repair place. The belt fits fits PERFECTLY in length, you just have to cut it to the right width. It is a Hoover 38528-035. That sucker will NEVER break. I use a razor blade to cut a thin piece off the edge of the belt - it doesn't have to be straight or perfect or anything - just not too wide. I've been using the first one I ever cut for over 4 years.
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The O-rings are a perfect fit, and I have yet to have the first one break (but it's only been a couple of weeks, so...) so 42 belts is probably massive overkill... but it's 42 belts for fourteen bucks! It would probably be ideal to split the order between 8 people, then it would be $1.75 for five belts.
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Thanks Kalera! I am on my first Harbor Freight belt but I've just tumbled 3 times so far. Harbor Freight included 5 or so spare belts in the box, but I'm bookmarking that site for later. :)
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I took my old belt to Tractor Supply & found some O rings that worked.
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That's a good source for replacement belts.
Personally, when mine broke, I just found a rubber band that fit. It lasted for about 6 months. :lol: |
Oh, there are tons of alternatives. But these are ridiculously cheap even delivered to your doorstep, and I figured I'd post the link and part number to save other broken-belt sufferers time and gas searching.
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Thanks Kalera for sharing the tip. So far mine hasn't broken , but mine only came with one belt, from HF.I wonder where I would find one, when it broke.You save me the worry of finding it.
Janet C. |
Oh, please don't take what I said badly. It just amuses me endlessly that it runs with a rubberband. Sorry!!
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That is brilliant, thank-you Kalera.
Darrell in Ontario |
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:)
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Thanks. I'm bookmarking the link.
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Awesome! I hope it's helpful. My tumbler is in use almost constantly, and the Harbor Freight belts were breaking once a week or more. I used to have a kid's toy rock tumbler that ran and ran like a little champ, but it had a pretty tiny capacity and I am tumbling more and more... finally, after about eight years, the poor little motor burned out!
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Thanks for the tip! I have a little cheap-ass tumbler that I haven't used yet. Had it for years, and just have to get the shot. I'm sure I'll need those o-rings soon, lol!
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Thanks for the tip :) Knock on wood - I've had my tumbler for several years and have not had to replace the belt yet. Maybe that means that I'm not using it enough??? I'll definitely bookmark the site though.
Cheers, -Yee |
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I bookmarked this, too. My tumbler acts like it can hardly turn round, I was wondering if it was a belt or the motor. Hubbys says belt, so now I'm armed and ready when it goes!!!
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*shakes tiny fists of fury* |
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those darn belts...
To anyone looking for a replacement belt for a harbor freight rock tumbler- please don't call for the scam that is out there. Chicago tools and h.f. want you to pay 3 or 4 bucks a pop for a substandard belt that is designed to break.... Sooner or later. Squid had an excellent idea- use a hoover vac belt (hate to correct you, squid, old buddy, but the part no. Is 38528 [prefix for all hoover belts]-038, not 035). The only thing is you gotta adjust the screws a little bit that hold the motor in place. Once you get that tuned in, you can forget about constantly checking your tumbler to make sure it's still rolling 'cuz those babies will last for years. The -038s will run about $6 or $7 at a vacuum repair shop. Not to dismiss your idea, Kalera, you beautiful thing you, I just wanted a belt NOW and didn't feel like paying s&h fees or waiting on the o-ring store to ship it! Anyway, happy tumbling/ ball milling, all!!
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Looks like the site originally linked is down. Anyone know where to find a similar deal?
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I'm a bit confused. People seem to be using the terms "O-ring" and "belts" interchangeably but they're two entirely different parts. The tumbler instructions say to replace the v-belts (part #40) periodically and also replace the o-rings (part #37)once in a while. They also say that 5 "replacement o-rings are included" but there are no o-rings in the box although there are some replacement belts. Nor do they describe HOW to replace the o-rings although they do describe how to replace the belts.
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I think they were buying O-rings of an appropriate size as replacements for the belts. The original post is from 2011, and most of the people posting from back then are no longer active here.
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They also changed the design so this only applies to the older model.
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I just use an appropriately sized rubber band. It works for a year or kore and the. I just replace it.
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