Re: [CAD_CAM_EDM_DRO] B: Brushless motor

Well,

I'm sure I ran the motors longer then they were intented to, and that's why
they melted down. I did'nt use any of them for more then 10 hours, before
they died. Granted, the first one died because the endmill got stuck, and I
did'nt notice till it had been hold tight for around one hour. The other,
the bearings died. It's still running, but very slow and noisy.

So I was thinking that a used brushless would help me.

--Michael

----- Original Message -----
From: "Peter Seddon" <peter@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Sunday, October 06, 2002 11:58 AM
Subject: Re: [CAD_CAM_EDM_DRO] B: Brushless motor


> Whilst I agree with the setiments about brushed motors; is the problem to
do
> with the atmosphere they are being run in? The biggest killer for brushed
> motors in my experience is dust when it can enter the brushgear. Wear,
> arcing, noise and destruction can in extreme cases often follow. The other
> cause of brush wear is operating brushed motors outside their ratings for
> extended periods or poorly timed brushgear.
>
> Any views Michael ?
>
> Regards Peter
>
>