Recommended R.P.M.

Recommended R.P.M.
	30-40 Duro	50-60 Duro	70-80 Duro	90 Duro
4" Dia	3800	4800	5700	6700
6" Dia	2500	3200	3800	4500
8" Dia	1900	2400	2900	3300
10" Dia	1500	1900	2300	2700
12" Dia	1300	1600	1900	2200
14" Dia	1100	1400	1600	1900
Generally, the softer the wheel the slower the RPM.