Cheap is the main thing, as the real money will be spent on the motor controller to regulate the power feed. I wish I saved the site I got the others from....sucks to get old and forget....If cheap is not the main requirement I can pm you where to get them. I have always thought they were an expensive type of pulley. The belts are not that bad though.
https://www.ebay.com/itm/Silver-Alu...009260&hash=item239e6d6791:g:nX0AAOSwetxbCTl4
try this............ bore it to fit
Kim
Found a source, thanks...
Dave
Did that source in the PM look reasonable ? I'd be interested in your experience with them if you go that route.
Dave