CAD CAM EDM DRO - Yahoo Group Archive

Re: spindles powered by REGULAR AC induction motor

Posted by ballendo@y...
on 2000-12-12 15:09:04 UTC
Peter wrote:
>Ballendo,
>I don't recall this point being covered. How much over speed would
>you feel comfortable with in regards to a REGULAR AC induction
>motor? I got a couple of 3hps and a 5hp. All are TEFC motors, 1725
>RPM I believe. I really don't like going over 90 Hz. Suppose I could
>try 120+hz with a scatter shield over them or something :)

Peter,

You're just looking for an unqualified opinion, right? Because I
can't say I'm speaking with any authority on this :-)

Okay, I'd easily trust a 1725 at 3450. Bearings for both have GOT to
be similar. and 3600 is a go. Beyond that, I'd be 'testing', same as
you...

Hope this helps.

Ballendo

Discussion Thread

ptengin@a... 2000-12-12 10:07:16 UTC [CAD_CAM_EDM_DRO] Re: spindles powered by REGULAR AC induction motor Carlos Guillermo 2000-12-12 11:09:30 UTC RE: [CAD_CAM_EDM_DRO] Re: spindles powered by REGULAR AC induction motor ballendo@y... 2000-12-12 15:09:04 UTC Re: spindles powered by REGULAR AC induction motor ptengin@a... 2000-12-12 16:29:37 UTC Re: [CAD_CAM_EDM_DRO] Re: spindles powered by REGULAR AC induction motor