PX200 crank in Rally200 (femsa) casing

Hep!

If I'm going to exchange my original crank in a Rally200 Femsatronic to a PX200 crank,

I will need to exchange the flywheel side bearing aswell, but with what bearing do exchange?

I was told that I could use a T5 flywheel side bearing, others say to use a SS180 type bearing.

Any help is appreciated!

 

Cheers / Nikolaj