On 11/10/18 12:33 PM, Fred Cisin via cctalk wrote: >>> He needs a larger pulley if going from 60 to 50 ( as a motor pulley >>> ). It needs to be 20% bigger because the motor turns slower on 50 Hz. >>> 6/5 to be exact. > On Sat, 10 Nov 2018, Chuck Guzis via cctalk wrote: >> No argument there--but the size increment is pretty small. Consider >> that a typical motor pulley is about 19 mm in diameter, so a 20% >> increase would be only about 23 mm. > > Depending on the drive, WHICH pulley should be changed?
The motor drive pulley is the easiest. You might even find a ready-made one in an engineering findings catalog. Alternatively, consider this YT video for a DIY frequency changer: https://www.youtube.com/watch?v=mEiUt56elAw --Chuck