Re: [CAD_CAM_EDM_DRO] MILL/DRILL Spindle Speed

Joel wrote:

>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 ?
>
>

If it has oiled bearings, and you use a good oil, you should have no
trouble.
If it has sealed grease bearings, they might get hot at 5000 RPM. So, you
might have to change to a lighter lube.

Jon