i have a hydraulic motor that turn 914 rpms with a 4 1nch pulley i want to change to a motor that turns 760 rpms what size pulley will i need to get the same rpms
This is an approximation and assuming the current ratio is 1:1, based on the information provided.
It would be more accurate if you gave the current motor rpm, and both pulley sizes.
I'm confused!
He did give the current motor RPM = 914 and you used it for your calculation!
Assuming he keeps the same driven pulley size why would the driven pulley size make any difference?
So you probably need to decide between 4-3/4 or 5"