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Post by oregon on Jul 29, 2021 16:07:24 GMT -5
We built a two 15lb hex barrel tumbler a while back, and it works fine. It runs more during the summer, but not constantly year round. On the non motor end of the bars we do have two 2.5" pulleys with a short coupling belt - 16 or 18"?. That short belt seems to crack pretty quickly, it'll keep running for a while when split, but just sort of a pain for something that doesn't have a huge load on it. I imagine that I could buy link belt, or that I could put larger pulleys on the ends or just keep buying belts.
Just wondering what lifetime others see out of these short belts (the one on the left below) and maybe what size pulleys folks tend to have on the coupling end. Drummond Island Rocks MichiganRocks
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hypodactylus
spending too much on rocks
Member since July 2021
Posts: 434
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Post by hypodactylus on Jul 29, 2021 17:35:24 GMT -5
Why do you need to connect the two shafts like that? Wouldn't having a drive shaft and an idler shaft work; eliminating the need for the short belt?
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Post by rmf on Jul 30, 2021 9:35:12 GMT -5
I put a couple of sprockets on mine and used bicycle chain to drive it. I don't have to worry about belts. Have had zero problems.
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Post by oregon on Jul 30, 2021 10:57:37 GMT -5
Why do you need to connect the two shafts like that? Wouldn't having a drive shaft and an idler shaft work; eliminating the need for the short belt? I"m sure others can chime in, but if one shaft starts dragging (rock grit) it'll just start wearing the rubber faster etc, just seems like a better /safer build. Hours of wear add up quickly for things that run 24/7, unlike most tools you or I own... 2c
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Post by rmf on Jul 30, 2021 18:02:00 GMT -5
Why do you need to connect the two shafts like that? Wouldn't having a drive shaft and an idler shaft work; eliminating the need for the short belt? I"m sure others can chime in, but if one shaft starts dragging (rock grit) it'll just start wearing the rubber faster etc, just seems like a better /safer build. Hours of wear add up quickly for things that run 24/7, unlike most tools you or I own... 2c Lortone tumblers on older drums tend to slip with one drive shaft. The second drive shaft just keeps thing rolling. It might work the other way I just prefer to avoid Murphy's Law when I can. Your mileage may vary.
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