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[4]

4x6 bandsaw pulleys messed up

[3]
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ttabbal

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#1
They don't run true and don't stay put. I can only assume the wobbling is causing enough vibration to loosen the set screws. If I try to use the belts in other than the middle speed, they fly off. :) Otherwise the thing cuts fine, if a bit noisy. I was wondering if anyone else has seen this and how they fixed it. I figure I'll be replacing the pulleys after I ensure the shafts are reasonably straight.

No warranty, so I'm on my own to fix it.
 

royesses

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#2
If the shafts are not bent the easiest is to purchase the pulley(s) from Grizzly. Motor pulley is $8.00 and the gearbox pulley is $9.00.

Roy
 

markba633csi

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#3
I had a similar issue with my motor pulley- I finally fixed it by drilling and tapping for a second setscrew on an adjacent groove.
On my gearbox pulley I put two setscrews in the same hole, one on top of the other. No more loosening.
mark
 

NortonDommi

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#4
I've struck crappy castings a few times plus bed machining e.g. off-center holes, tapered bores etc. If the shafts are O.K. sometimes it's worth boring the pulley out true, making and fitting a sleeve. At least then you know everything is square to the world.
 

ttabbal

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#5
I'll check those out thanks for the tips!
 
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