band saw wheel run-out

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Forum topic by dbw posted 05-23-2016 02:09 PM 900 views 0 times favorited 5 replies Add to Favorites Watch
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207 posts in 1786 days

05-23-2016 02:09 PM

Topic tags/keywords: band saw wheel

What is y’alls opinion on acceptable band saw wheel run-out front to back (lateral?) I haven’t measured mine yet but I think one or both wheels are wobbling a bit because I can see the blade going back and forth as it’s running when viewed from the side. Could the blade itself be wabbly? The blade is a Olson 1/2” X 3tpi.

-- measure 3 times, cut once

5 replies so far

View runswithscissors's profile


2848 posts in 2174 days

#1 posted 05-25-2016 04:04 AM

Could be an imperfect weld, which could cause the effect you are seeing. Have you checked the wheels without the blade on to see if you might need new bearings.

-- I admit to being an adrenaline junky; fortunately, I'm very easily frightened

View TheFridge's profile


10360 posts in 1635 days

#2 posted 05-25-2016 04:24 AM

I’d lean towards bad weld. Especially if it’s a lower end blade. I’ve bought nothing but cheap ones and they’re pretty much all like that.

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

View dbw's profile


207 posts in 1786 days

#3 posted 05-25-2016 01:04 PM

I measured the run-out of the top wheel. It’s .008 TIR.

-- measure 3 times, cut once

View HokieKen's profile


6300 posts in 1288 days

#4 posted 05-25-2016 06:29 PM

I’d say it’s the blade. .008 TIR shouldn’t cause enough movement of the blade for it to be visually evident at the table. Stick your indicator on the back of the blade and see if it moves gradually or all at once. If it’s all at once, it’s a bad blade weld. Obviously, do this by turning one of the wheels by hand, not with the bandsaw running ;P

-- Kenny, SW VA, Go Hokies!!!

View dbw's profile


207 posts in 1786 days

#5 posted 07-10-2016 12:29 PM

It turns out the lower wheel bearings and the tension adjustment pulley bearings where part of this issue. The friction got so bad that eventually the drive belt broke. I replaced the bearings with the sealed version.

-- measure 3 times, cut once

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