Ron, just sounds like normal wear an tear. If you think about turning the blade, the arbor shaft, then the motor, the belt will have some slight "shake" to it, add this all up, it will slowly show some wear on any machine.
The Grizzly Hybrid is a wonderful saw. I do have one but, then again I did purchase mine last Dec.
Haven't had a bit of trouble with it at all. If you're running at 110v, I do suggest that you get their mag switch to rewire it to 220v. You'll notice an even better performance TS.
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