On 11/10/18 11:42 AM, dwight 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. > Dwight
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. One could also take Tony's approach and simply cobble up a crystal-controlled 60Hz source for the motor. Shouldn't be too difficult--I suspect that the motor doesn't draw more than about 30W. If you had an excess of 12VDC, you could possibly use an inexpensive inverter to do the job. --Chuck
