Hello Bonnar Bloke and Gadge
You live and learn Gadge, so the bore of 32nb pipe can actually be as big as 36mm, might see if I can put some money in a nominal bank account. I think a big advantage with using a 6202 bearing is it is properly sealed, apart from the mower I used to own (it lived a sheltered life) I have never seen an original bearing that wasn't full of crap and flogged out.
Smart move by Anthony Bearings if they made bearings in sizes not available any where else in the universe.
Gino