Re: [CAD_CAM_EDM_DRO] linear bearings - hydrostatic bearing with granite ways ?

hanermo 2 wrote:

>linear bearings - hydrostatic bearing with granite ways ?
>anyone know if its feasible ?
>
>

Sure. You can use air or thin oil for this. You need a lube pump and a
scavenge pump, and enough guarding to keep dust off the bearing
surfaces and out of the oil. There are some really fine machines using
this technology, but it is usually relegated to the over $250 K machines.
it is totally pointless to use technology like this except in the most
insanely rigid machines, with the support structure several inches
thick. The opposed surfaces need to be flat and parallel to insane
tolerances for the machine to work without binding.

Jon