Originally Posted by leathermang

Grainger is a site you can get just about Everything from.. usually at THREE or more times the cost of other places.. but sometimes you can't find those other places....so it is a nice emergency solution.

IF you are going to try to do this.. which I only mention but do NOT advise...
go to your nearest BEARing supply....which will usually also have pulleys
and ask for the PAPER catalog of things like Browning power transmission ....

You might need to make a step down mechanism between the motor and the air compressor pulley.... since it has a fan included in it i assume..

the load .. usage at the equipment... is important main factor..

but you mention other important factors... the length AND size of the hose.. can really make a difference on things needing constant pressure.. like a paint spray gun... which really needs a whip and a pressure gauge AT the sprayer's belt line to see if the system is providing the air capacity at the speed needed to do proper atomization.. ( of course I am describing the stone age... not the newer spray systems meant to save over spray )

You ARE Worrying about the correct potential problems...

so a new minimum Five hp ACTUAL hp compressor may be what you need... and make sure you have the biggest of hoses you can afford... ( a problem finding the brass connection hardware may present itself ) which I hope someone will tell me how to resolve with my 5/8ths inside diameter hose ...

The way they are allowed to describe ( which should be illegal ) causes many people to buy under what they need for their jobs...

You will need to really research to make sure you get what you need.... ' over capacity' is a really good thing... some day you might want to hook up two loads at the same time...