So, then I was curious. I made myself a little experiment...
I took a corsair fan I had lying around - pulled the retaining clip out, and even removed the rubber gaskets on the bearing...
It's currently sitting on my desk running in free air @ 12VDC. I might up it to 18VDC or something to get it whipping around at around 3k RPM... just to see what happens.
So far, it's pretty stable in it's housing, despite having no physical restrictions to coming out (aside from the magnet)
I'm no physics major.. hell, I didn't even take it in High School... but I think the forces of magnetism and inertia will keep it where it is just fine.
If I could remove the shaft from the fan blades and get it spinning around the motor with zero physical contact... I still think I would stay in the housing. Unless you bumped it hard enough... and even then, I highly doubt a 2oz piece of plastic could cut the tubes on an H100...
