Re: [CAD_CAM_EDM_DRO] MILL/DRILL Spindle Speed

A greater concern is if the pulley on the spindle will stay together at that
speed. The centrificul forces are tremendous. I wouldn't run it at that
speed unless I calculated it strength and dye checked the pulley to make
sure there were no tiny cracks. That pulley whirling at that speed at head
level could be lethal if it came apart.
Dan

----- Original Message -----
From: "Joel" <chopper_joel@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Monday, January 24, 2005 8:40 PM
Subject: [CAD_CAM_EDM_DRO] MILL/DRILL Spindle Speed


>
>
> Hello,
>
> I have a RongFu 30 and would like increase the max spindle speed from
> 2500 rpm to 5000 rpm. Has anyone done this ?
>
> My plan is to change out the stock 1700 rpm motor with a 3400 rpm
> motor, thus doubling each of speeds. My concern was the spindle and
> other bearings not being able to handle the faster speeds. Could
> this be an issue ?
>
> Any ideas or concerns would help.
>
> Thanks,
> Joel
> http://www.jhchoppers.com/cnc/
>
>
>
>
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