Quoted from the4horse:Sure, it might be a fun experiment. One day if someone works out what the issue was on mine, I'll find out how fast my paddle wheel can go too!
Here's the link to the supplier and the part;
http://www.smallparts.com.au/store/partscombined/ugroovebearingsandpulleys/ugroovebearingsandpulleys/a/41/
It's Part Number: PUF024-0635-064-AB - the two and a half inch 'outside diameter' one.
Yes. These are still obtainable, no longer promoting this range as pricing has increased. New price is $91.60 + GST each. 5 in stock in the factory, approx. 2-3 weeks delivery