tommy1010
Stainless
- Joined
- Apr 21, 2010
- Location
- northeastern Pa, USA
I have recently acquired a Nichols milling machine. 3 phase 1725 RPM 1 1/2 HP Master gearhead motor with a 744RPM output. I am sure someone on this forum has one identical to mine. Qustion is what pulley sizes are on yours? I have pulleys that are 2 step B size belts that are dual belt. Drive pulleys are 4" and 6.5". Driven or spindle pulleys are 11.25" and 13". The manual I have references a two step pulley for high speeds. These pulleys just don't seem like they are original to this machine. IMHO. Since I need to get a VFD for this machine what pulley arrangement would be used with the gearhead motor I have? If yours is run be a VFD what madel/make did you get? This machine is in great shape as there is hardly any wear. It even has the Longitudinal feed screww on the table. Need a couple of handles but no big deal. Was setup with air cylinders to raise the spindle automatically. Even has coolant tank but no pump at this time. Any help will be appreciated. A few pics to ponder.