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input/output rpm ratio

input/output rpm ratio

input/output rpm ratio

(OP)
I have an electric motor turning 1775 rpm, driving a speed/torque reducer with a 37.5-1 ratio. There is an 8 inch pulley on the output shaft which steps up to a 12 inch pulley on my conveyor headspool. What are the rpms on my 12 inch sheave and what is the rule of thumb to figure this out next time? thank you

RE: input/output rpm ratio

1775/(reducer ratio)*(driveR sprocket pitch diameter)/(driveN sprocket pitch diameter) = RPM at conveyor head shaft

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