pulley sizes for 22 hp saw motor?

[Clover]

Kbeitz I'm not sure what you're trying to say?

" I cant see how they can rate
the horsepower of a pulley with out knowing the OD of it."

The larger the pulley the more contact area there is with the belt in the v grove. So the stated hp for a pulley is how much hp can be loaded onto that belt for that size pulley (efficiently).

So a single pulley rated for 8 hp with a b belt will work on a 30 hp engine but you will only be able to utilize 8 hp of said engine before slipping the belt. If the same pulley set up was on a 5 hp engine it would stall it before the belt slipped.

[Kbeitz]

A small 5" pulley will slip way way before a 10" pulley will.
what they are saying is that a 1/2" single belt will only handle
so much HP. But they are not saying with what size pulleys.
A 1/2" belt will snap if your pulleys are big enough. I would
bet you could push 50 hp through a 1/2" belt before it would
snap with big enough pulleys. With a very small pulley it would
be hard to push 1/2 Hp before it would slip and burn.

[Brian_Rhoad]

My mill has a 23HP Kohler. 3.4" on the engine and 15.4" on the driven shaft. 2 B belts and never had a problem with slippage.

[Dogwreck]

I know this is an old post, but Sinewave, what setup did you end up going with? Also thanks Clover for the lessons, I learned a lot from your post. The tools calculators are awesome too. I am getting ready to start a build and I also just acquired a 22HP Predator. Do you guys run a tension-er or a clutch? Thanks

[ladylake]

Keep your blade speed a little over 4000 fpm, it will cut faster and straighter than higher blade speeds,  Steve