(08-20-2014, 06:30 AM)PixMan Wrote: I don't see the advantage of the thrust washers. It seems you would have just as much force, but easier to move as the bearing gives up "grip".
Educate me please. I suck at physics.
The way I see it, the clamping force is not diminished by the thrust bearing but it allows a tighter "clamping" because drag is reduced.
The clamping action is not achieved by the drag of the "nut" against the turret but the drag of the turret against the base (compound).
A ball screw although impractical in this application would be capable of even more "clamping action".
Admittedly one couldn't build a ball screw & nut of a fine enough pitch to resist "unscrewing.
Busy Bee 12-36 lathe, Busy Bee Mill drill, Busy Bee 4x6 bandsaw, Homemade 9x17 bandsaw, Ad infinitum.