Turntable

Oil well turntable bearings unlike for example a crankshaft bearing can't always generate the rpm necessary to assure enough pressure to prevent metal to metal contact .  Im not saying they don't work however, just contact is possible. Hi friction in a bearing in no way increases speed stability. Once warmed up and the viscosity changes it doesn't hurt it either. 

Thanks.  I guess the problem with low rpm would especially apply to an inverted bearing turntable. I am not sure that the braking effect of the grease bearing in an early Garrard 301 is totally analogous with friction but others refer to that constant drag as a way to stabilize the speed.

"Others" are wrong, LOL. 
Inverted bearings "work" better at low rpm in theory but have other disadvantages like higher friction. Lots of ways to good sound. 

Of course I amin the low friction camp so I am biased. I can't think of a single advantage friction adds to a TT.  NOT saying that higher friction designs sound bad, just that in theory it is a detriment. 

As John Curl says......."Condemnation without Examination is Prejudice"