Thanks, I completely forgot about white lithium grease. I'll give that a try. Hopefully it'll cut down on the vibrations when I spin it, but I get the feeling something might be slightly bent and need to be replaced. Oh well that's the fun of all this right?
Edit:
white lithium grease is where it's at. Spinner is super smooth now, no grinding or nasty vibrations. Encoder wheel looks a little bent but that's a whole other problem to deal with.