I would like to drive two identical devices off of 1 power source. I would like to use two independent but equal sized V-belts, a double stacked pulley on the drive shaft and a single pulley on each of the device shafts. If the power source has a rating of 36HP @ 3600 RPM, what is the maximum HP rating of the identical devices @ 1200 RPM? The drive pulley/device pulley would have a ratio of 1 to 3. I've looked for an equation or explanation of how to solve for this but have not been successful. Any assistance would be appreciated.