I agree with the other two chaps - get them directly from a bearing supplier. I tend to use these guys:

https://www.bearingboys.co.uk/


Rear Wheel

Hub bearings : 6203-2RS
Sprocket carrier: 6304-2RS

Seals:
23 x 40 x 7 disc side rear.
30 x 52 x 7 on the sprocket carrier.

Front Wheel

The fronts are also 6203-2RS and two 23x40x7 seals.

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