Re: [CAD_CAM_EDM_DRO] Affordable ball screws

On Fri Jun 21 11:07:18 2002, Stan Stocker, <skstocker@...> wrote:

>The combination of surface speed and viscosity of the oil creates a
>hydrodynamic wedge that allows the surfaces to ride on a pressurized oil
>layer. A screw/nut combination wouldn't be moving at sufficient speed
>to create this effect unless you went with a very heavy oil, and maybe
>not even then.
>
>Cheers,
>Stan
>
>"Scott M. Thomas" wrote:
>>
>> I agree that oil collection would be an interesting problem.
>>
>> How would this compare to the crankshaft, connecting rod and camshaft
>> bearings in an automobile engine? They exhibit relatively loose tolerances
>> and still maintain the hydrostatic effect.
>>
>> Granted, I wouldn't want to run those bearings in the open, it would make a
>> huge mess! ;)
>>
><snipped>

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