Quote Originally Posted by GeorgeD View Post
How are these pullys made? can't find a vid on youtube of them being made?

http://www.bearingboys.co.uk/10-3M-0...Pulley-21167-p
I imagine just like any pulley. Machine the blank to shape then an indexer to machine the flutes at the required pitch (Machining centre would I imagine do all these operations in a single run) then two sidewalls pressed on to keep the belt tracked.

But I could be wrong :-)

Jeff.