Re: air bearing spindle for sale

Elliot,

Yes, I would like to buy it. I will contact you direct
as soon as I get a digest message with your full e-mail
address in it.

Thanks,
Steve Stallings


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Elliot Burke" <elliot@h...>
wrote:

> re the discussion of 56,000 rpm motors,
>
> I purchased from EBAY a couple years ago a motor similar to the

Westwind, I

> think the company clones them or something:
>
> Air Bearings LTD, model AW125E/04, serial no. 0328, 125,000 rpm
> 200V - 2084 Hz, 3 A rated, actual 2 A, 200 V at 125,000 rpm.
> This has air bearings and is water cooled.
> It was rebuilt before I bought it by the factory, I have the repair

sheet

> with test results (to 125,000 rpm), dates, vibration level, run out

and so

> on.
>
> It has what looks to be a 1/8" collet.
>
> diameter is about 2.45", total length about 10".
>
> I bought it thinking that it would fit my Taig mill, but then it

got here

> and is much too large/heavy, so it stayed in the box. It is a

beautiful

> spindle, way too pretty for my machine.
>
> My reading on these indicates that dry air is needed, they use

refrigerated

> dryers for this. The bearings are water cooled. Keeping the

temperature

> very constant prevents axial growth of the motor, improving z axis

accuracy.

>
> It is just taking up space here, perhaps I can get back what I paid

for it.

>
> The first $150 + shipping will take it. Anyone interested?
>
>
>
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