mill_drill : Bench mill/drills

This is a group for discussion of the metalworking mill/drills made by Rong Fu and the knock-off clones.

Re: Making mill RPM go higher One big reason you should not run a spindle at higher than recommended design speed is because of the centrifugal forces on the spindle drive pulley. If it Posted - Mon Nov 23, 2009 3:44 pm	Dan Mauch danmauch Offline Send Email
Re: Making mill RPM go higher Art, can you really spin those bearings up to 5k safely? I ask because I've got two mills, both knee-type running VFD's with oiled bearings. The factory Posted - Mon Nov 23, 2009 4:54 am	Corey Renner corey94945 Offline Send Email
Re: Making mill RPM go higher Ken, I "think" your bearings are similar to the ones on my RE31 and as they are "grease lubricated" I think you will find the upper limit is about 5500 rpm! Posted - Sun Nov 22, 2009 11:07 pm	Art Eckstein axtein Offline Send Email
Making mill RPM go higher Hello all, Does anyone know what the upper RPM limit for the Rong Fu model 25's quill bearings would be? My overhead router nastily died, and I was thinking Posted - Sun Nov 22, 2009 11:01 pm	ken lyons ohmwiz Offline Send Email
Re: Leather Drive Belt Question Mine have black arrows on them and the belts run in the direction that the "arrows" made by the links point. I had a chance to look closer and I can see no Posted - Tue Nov 17, 2009 4:57 am	Glenn N sleykin Offline Send Email
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