Bandsaw Blade "Hump"

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Forum topic by Walnut_Weasel posted 02-02-2010 10:39 PM 1152 views 0 times favorited 3 replies Add to Favorites Watch
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360 posts in 3785 days

02-02-2010 10:39 PM

I recently purchased a new Timberwolf 1/2” blade for my 14” bandsaw. While installing the blade and adjusting the guides to this new blade, I noticed that every time the back edge of the blade near the brazing would rotate past the rear bearing the blade would rub rather hard against the back bearing. I needed to use the blade so I backed the bearing off a significant amount more than I normally would and resawed the few pieces that I needed. While resawing, you could hear the “hump” in the blade each time it passed through the blade guides. The blade did seem to drift from side to side a bit more than the Timberwolf blades I have used prior to this issue.

So today during lunch I took the blade off the saw and layed it tooth-side up on a flat table and sure enough, on either side of the brazed area, the back edge of the blade was not making contact with the table. I measured the gap with my scale and it is a gap of about 1/32” both to the left and right of the braze.

My question to everyone here: is this “abnormal” for a higher quality blade like a Timberwolf? Even though the blade does not cost much, I am considering taking pictures and sending it back to the company to make them aware of the issue. However I wanted to get the opinion of some folks that have more experience with bandsaws than I do.

-- James -

3 replies so far

View lew's profile


12899 posts in 4318 days

#1 posted 02-03-2010 02:46 AM

Somewhere I remember reading about using a “sharpening stone” to fix this problem. I think the procedure was to lightly hold the stone against the back of the running blade and let it “grind” off the hump. Tried to find the information but didn’t have any luck. I don’t think I dreamed it.

-- Lew- Time traveler. Purveyor of the Universe's finest custom rolling pins.

View jerryz's profile


164 posts in 3841 days

#2 posted 02-03-2010 02:59 AM

Unfortunately if you a void on the backside of the blade I very much doubt using the stone method will work as you would need to remove that 1/32 on the whole remainder blade in order to remove the problem.
I would take pictures and contact Timberwolf right away.
They should take care of you. otherewise let us know how they treat you.
After all I also have bought blades from them.

View Walnut_Weasel's profile


360 posts in 3785 days

#3 posted 02-08-2010 10:41 PM

I just wanted to update anyone that may be interested.

I originally attempted to contact Suffolk Machinery via the email address listed on their website. After 3 working days I did not receive a response – which is slightly irritating in today’s electronic world.

So today I called their 800 number. I was quickly transferred to a customer service rep and he walked through the issue with me asking several questions about my machine setup, etc. After a few minutes he agreed that the blade was not to their standard specifications. However, because I purchased the blade through Woodcraft he stated that I would need to contact Woodcraft. He explained that the blades sold by Woodcraft are welded by an outside vendor that Suffolk does not deal with directly.

After some additional surfing on the web, I realized that you can actually purchase a blade directly from Suffolk significantly cheaper than you can buy it from Woodcraft.

So now I am back to square one. The next time I make a trip to Woodcraft (an hour’s drive) I will have to remeber to take the blade along with me. At least now I know this is not an issue with my saw setup, etc.

-- James -

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