This is a nifty idea. But having high powered magnets next to the bearings can magnetize them. Ever see a bearing on a finger flick look like it had breaks and reverse just a little at the end of the spin. That can slow a bearing down quite a bit and help ruin a bearing. So my question is, is the magnets in this far enough away and not that powerful to cause damage? I'm not trying knock your product, just curious because i really like this idea and I'm really into magnets big time.
they are not that powerful plus you have string between the magnets and bearing