Playing with wind power

[J57ltr]

Stock Drive is a place that carries them. They are called Timing pulleys, I guess I just use sheave for anything that uses a belt. http://www.sdp-si.com/web/html/drivesystems.htm

I can’t pull up anything on their site right now but I use a 3/8” wide .080” pitch Kevlar reinforced belt. A 15 tooth drive pulley that we bore to 5mm and a 30 tooth that comes ¼” bore and, is just under 1” in diameter we bore it to 3/8”. The belts are strong but would probably wear out fast in a RC think belts run about $6 the larger pulley runs about $15 and the smaller ones about $9. Of course that’s just a 2:1 ratio they also have plastic pulleys and ones with larger teeth (that’s usually the first thing to go). There are some others but I’ll have to check at the office.

Jeff