I have the motor show in the attachment on a South Bend 9 with flat belt drive cone pulleys. For Rpm, the motor is labeled "1725/1140". I did a calculation on the current set-up based on 1725 Rpm which if my calculations are correct(?) I come up with the slowest spindle speed of about 415 rpm. The countershaft drive pulley has 2 steps, and it is on the smaller step. The motor drive pulley is 3" diameter.
If the motor is running at 1140 rpm, I think I would come up with a spindle rpm of about 274, again, if my calculations are correct (?).
How do I tell if the motor is set up to run at 1725 or 1140 rpm; and if at 1725, how would I reduce it to 1140 rpm? Also, would there be any issue in running it at 1140?
If the motor is running at 1140 rpm, I think I would come up with a spindle rpm of about 274, again, if my calculations are correct (?).
How do I tell if the motor is set up to run at 1725 or 1140 rpm; and if at 1725, how would I reduce it to 1140 rpm? Also, would there be any issue in running it at 1140?
