Help: re-gearing transfer of power via pulley + belt / double sheave vs single sheave

[Frank S]

You might ask at your industrial power transmission dealer such as Motion industries Bearing and Chain & supply or others about going with a Poly V belt drive for automotive use they are commonly called serpentine. Poly V drive systems can come in a wide arrangement of rib counts from 4 ribs up to 20 ribs and "V" grove widths from 2.34mm for the J series to 4.7mm for the L series to 9.4mm grove widths for the M series and up to 800 hp transmission of power
Here is a catalog showing the ratings pulley sizes and center distances available from 1 supplier
http://www.industrialbearings.com.au...1327992533.pdf
The worst thing about a synchronous belt IE cog or toothed drive is there is no possibility for slippage they are a positive drive system just like roller chain if you were to use that as a drive system, I would highly recommend a torque limiting friction drive as well