Re: High speed spindle chuck

Jon Elson wrote:

The air bearing, integral motor-spindle

> weighs about 6 Lbs., so a fast stroke is pretty easily achieved.

The disadvantage

> to air turbine spindles is that the speed is not constant under

load, unless

> thay have a governor on them, which the most expensive ones do,

indeed,

> have. Mine has a 3 phase induction motor, but needs high frequency

power.

>
> Jon

Wally K. replys

I got lost when you mentioned the hi freq 3 phase ind motor. Are you
saying that this motor somehow regulates your spindle speed on your
high speed air powered drilling motor.