A wobble in new Freud blade

[oracle]

I got a thin kerf Freud melamine blade (60 tooth, negative hook, 3/32" kerf) to cut some plywood. It cuts plyood beautifuly without chipout.

My problem is this. The balde wobbles like crazy at least 1/8" left and right. So I got an another one thinking it was defective. The second one did the same thing. When I run the Forrest WWII (1/8" full kerf), spins sraight and true.

What could be going on here?
Is it a bent arbor? Or maybe I need a blade stabilizer?
Can a wobbly balde affect the cut? Can I expect a precision cut with such a blade?

[cgallery]

With the Forrest blade running true, I find it hard to believe the problem is with your arbor. I wonder if something happened to the Freud blades (the entire lot of them at your store) that has caused them to bend or warp. I would return the 2nd unit and source one from another store.

[kwgeorge]

I saw somewhere else on another forum someone complaining about a new Freud blade wobbling.

[gjbivin]

Try laying the blade on a flat surface. You should be able to see if it's warped. Also feel around the arbor hole on both sides to see if there are any burrs or protrusions that might be preventing you from completely tightening down on it.

[LCHIEN]

Try laying the blade on a flat surface. You should be able to see it it's warped. Also feel around the arbor hole on both sides to see if there are any burrs or protrusions that might be preventing you from completely tightening down on it.

I would think you should be able to see warpage that bad as stated above.

Burrs or protrusions around the arbor hole would be the thing to check if no warpage.

I don't think blade dampeners will help one that bad.

[LarryG]

Try laying the blade on a flat surface. You should be able to see it it's warped.

And if you CAN'T see that it is warped, I wouldn't use it under any circumstances since that would suggest there's something amiss somewhere that's causing it to wobble when it's spun up to speed. (I agree that your Forrest WWII running straight and true suggests it's a bad blade, not a problem with your saw.)

What's the rated maximum speed of the Freud blade? Recall that the BT3x00 (if that's what you have) spins at 4800 RPM.