RLeo was trying to convince me to use belts to drive my new DC welder ( 400 amp dual output from the Burden Surplus Catalog)... it has a pulley with dual 'B' machine belt grooves.....
My Diesel Ford tractor goes 540 rpm at the pto at 1900 rpm.... but I only need 20 hp to run the welder.... so I really don't need it at 1900 rmp... it has 65 hp I think....
I really don't like belts... thus my interest in Gravel two wheeled walking tractors.... no belts.... all gear.....
So I am looking at using three V8 cam gear chain drives in an enclosed box to get the speed from whatever... to between 3000 and 4000...
I could not get to Randy's website where he put the picture in the first place.. so he put it here... I thought it would be funny if he never visited the thread again... to see what kind of questions and theories were put forth....
However , the other option was running it off the back end of my low mileage 79 wagon engine.... that would not be as hard as trying to get the rpms up by 6 or 7 times...