So I've got this unused inverter duty 10HP AC motor and drive and I've got a CNC BP Boss 5 with the reeves drive and a max speed of around 4000rpm. My crazy thought is to get rid of the reeves drive and install the large motor figuring it would still put out enough torque even at low rpm so I could control the speed with Mach 3 when I get my new controllers wired up. Well this got me thinking crazy thoughts, like what if I where to increase the spindle rpm? Will the bearings take it? Could I install better bearings etc.? I know the spindle is pressure lubed but not continuosly, I'd like to DOUBLE the rpm for use with 1/4" endmills in aluminum. I know I'm insane, just wondering to what degree LOL

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