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| Measure diameter of both pullies. There are charts showing changes. 1” smaller on driver, 3” larger on driven. Might be ballpark. But there are charts to show changes. Some examples.
I looked at big pulley. Is it 15” so small one 5”? If you can put a smaller on driver you shoukd have what you want. Or am I missing something?
Yep you know you are at 400. OPPs so find smallest driver fits shaft. Belt gets traction. And, or
Larger driven pulley. Put into chart until you like results. I put smaller on my bin fill auger. I used to screen all corn. But got rid of cattle. But it is fast enough.
Edited by Larry_minn 10/30/2025 20:34
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How would you go about getting this auger to turn slower?
