Like a small car timing beltWhat type of belt is it?
You'll most likely have to measure, then take an educated guess, but it might take a few attempts.
I must admit I think my wheels are 9" when I opened the packet I thought no way would they fit but as you say I soaked in hot water for a few minutes and they went on, they fit very well considering they where £4 delivered from Aliexpress, I don't use it very often but lets see how they compare to the UK supplied at £20!I changed one of the tyres on one of our little bandsaws recently. It was an Axminster and the tyre size was 200mm or 8 inches. Putting it in hot water first to make it stretch over the wheel easier was recommended and worked really well.
I paid 10 quid from a uk supplier because I needed the bandsaw back in action for an A Level practical exam. I probably should have changed both tyres at the same time , but just needed a quick cheap fix.I must admit I think my wheels are 9" when I opened the packet I thought no way would they fit but as you say I soaked in hot water for a few minutes and they went on, they fit very well considering they where £4 delivered from Aliexpress, I don't use it very often but lets see how they compare to the UK supplied at £20!
I have started buying a lot of the stuff I need from Ali express as its so much cheaper