ball bearing dimensions

[gottowt]

As one or both of my ball bearings are broken and the agent from vkb europe have said he is going to send me spare ball bearings i want to order some myself as there is a long answer and delivery time and spare parts never hirt to have. So my question is what is the ball bearing dimenions in mm ? And while im at it the x axis (pitch) ball bearing mount seem to be different as there is a bump or something the ball bearing is supposed to be on so just wanted to know if it is supposed to just go over it or are there some special ball bearing to be used on that axis. And another question Is if i can run 50 and 40 springs on a 10 cm extension and if the 50 pound spring should e on the inner position ?

[fallout9]

The heavier spring should be on the inner side.
Not clear from your question which ball bearing is damaged (are you sure it's the ball bearing though? check this video for proper cams and spring set up before getting new parts), but here's blue print for ball bearings in a GFIII base: