Hi I have a leeson 110/220v motor and I need to drop the speed on the motor can I use a KBWC-210K to do or is there anyother recomendations without use of a vfd. The leeson motor runs at 3450rpm and my old motor runs at 1750rpm.
While the manufacturer says that you can use that device with induction motors (and you can, sort of, in some applications) it won't work at all well with a motor driving a machine tool. Change the pulley.
The KBWC-210K provides infinitely variable speed motor control for Shaded Pole, Permanent Split Capacitor and Universal (AC/DC) motors.
is it due to the lower amperage at slower speeds? I am trying to lower speed for my clausing lathe. I am new to this..the lathe does have different positions for belts maybe it will be slow it down enough. I and using lathe to mahcine aluminum compressor housings.
It is due to the fact that induction motors are designed to run just a bit slower than synchronous speed. That is determined by the line frequency. VFDs change the speed of induction motors by changing the line frequency.
Replace the pulley on the motor with one half the diameter of the present one.