Bearing for idler H0221a - Alternatives?

[lazyitus]

I need a new bearing for the idler of my Serp non PAS Griff 500. Quite expensive so looking for size or bearing companies who sell the correct bearing size. Any ideas?

[phillpot]

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[lazyitus]

phillpot said:

https://www.pistonheads.com/gassing/topic.asp?h=0&...

Thanks