> 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: