Hah I read the thread title and thought it was another let's make something mundane out of an exotic material. Who knows we'll have things made out of kryptonite in no time

Looks like a fairly good idea, but surely fixing a problem that doesn't really exist and adding another bearing to go wrong into the mix.
Edit: Actually having read the thread on RM seems like it might do some good. I'm half tempted to get something like
this and try it out.