[aerohead]

Okay you guys,help me out here! If the ceramic bearing can be run dry,are they? If the ceramic has only 60% of the "friction" of a hardened steel bearing,is that a dry steel bearing(which I've never heard of),or a "greased" wet roller,or ball bearing? If we're comparing to a wet bearing,then hydrodynamic forces enter into the equation and the article says nothing about it.If the ceramic bearings are run "wet",then they would also be subjected to hydrodynamic forces,and again,the article makes no mention of the distinction.