This is how the motor looks spinning at 500 Velocity and Acceleration.

Note its still jerking and not moving smoothly even at such a slow speed. Also there are brief moments when it seems like the table just glides smooth but then the grinding returns.

I held it in my hand for a bit and that I've put it on the table to show how noisy it is.

http://www.youtube.com/v/4gkLBOmZqJU