Does anyone happen to know the diameter (int and ext) of Cortina front bearings (both parts)?

[Edited on 11/3/08 by Richard Quinn]

why not contact the manufacturer of lightweight hubs, I'm sure they will give you the sizes.

Funnily enough, it is the manufacturer of one type of ally hub who has contacted me. His hubs fit his fabbed uprights and he wants to establish whether his hubs with different bearings would fit 'tina uprights. Assuming that they are all QWB115C's, I think that I've found them now.