Bandsaw Vibration

rcarmac

Robert
Corporate Member
The vibration on my Jet 18” bandsaw keeps getting worse. I have tried changing out the blade with some new blades I just received from woodcraft bands. The base is level and solid. I don’t know if the wheels are out of balance or maybe I need to replace the tires.
 

Brian Patterson

Bstrom
User
Clean tires will make a difference as well as blade tension. Beyond that, bearings and adjusting the ride of the blade on the the right are about all there is to these tools. Got some pix?
 

rcarmac

Robert
Corporate Member
I felt that belt and it didn’t have any cracks and was tight. What should i be looking for in the belt
 

Roy G

Roy
Senior User
Have you tried running it without a blade on it? Maybe a wheel or motor bearing is bad. Do you feel anything when you spin the upper wheel without the blade on it?

Roy G
 

bob vaughan

Bob Vaughan
Senior User
A real outside chance is that sawdust has collected on the inside of the wheel (if it is a solid wheel and not spoked). I've seen this rare condition where sawdust builds up to a point and then a big clump falls off thus creating an imbalance.
 

rcarmac

Robert
Corporate Member
Have you tried running it without a blade on it? Maybe a wheel or motor bearing is bad. Do you feel anything when you spin the upper wheel without the blade on it?

Roy G
Haven’t tried that yet but I will
 

junquecol

Bruce
User
Check to make sure the tires aren't bunching up under the blade. If they are loose, they will bunch up, creating a lump under the blade
 

Brian Patterson

Bstrom
User
Wow - even I didn’t know about these potential trouble areas. Almost glad you’re having an issue with yours - not really but this is good info to have.
 

patlaw

Mike
Corporate Member
Anyone know how to upload a video
Upload the video to YouTube or another hosting service and post the link here. The allowed hosting services are shown in the Insert --> Media tab on the posting menu. I don't know if a video can be uploaded to the NCWW server. I've never tried it.

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junquecol

Bruce
User
Check the clearance on the guide blocks / bearings. The weld could be causing a slight stopage each time it passes between them. If the weld is rough, a couple swipes with a Dremel will take care of that. Because it's happening with more than one blade, I suspect it's in the wheels. Take the blade off, with cord disconnected, fashion some kind of pointer that just clears the wheel. Turn by hand and see if clearance changes. Do both upper and lower
 
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