Update
Received new bearings from CBC bearings today
F206AKIT
CBC KIT2742
People have asked me for dimensions so here goes:
Axle 30mm Dia where bearing seats
Old bearing on axle
62mm OD
21mm Thick
New bearing
62mm OD
29.9mm ID
21mm Thick
New Retaining ring
29.9mm ID
46.1mm OD
9.57mm Thick
Old retaining ring
??? ID cant measure installed on axle
46.1 OD
8.9mm Thick. Difficult to measure on axle. Also has a chamfer
So as you can see this confirms what other have said about the issue with the retaining ring being too thick and it doesnt have a chamfer to match the old ring and the axle tube. I presume i will need to find a friend with a lathe......