Thanks for the info. I think I have managed to sort out the bearings.
It is possible to buy an exact replacement from bearingsrus however they are around £70 each as they are a special size. Bearingsrus were extremely helpful by the way. They have some 1mm thinner than the originals but I...
I too recently bought a Coronet Major with various accessories however the headstock ball bearing needs to be replaced.
The original bearing is an SKF 6205 ++ but I cannot find one with this number (I can get an SKF 6205-2RS twin seal but the bore size of this bearing is around 1mm too large)...