Oh dear, what an absolute pain in the Ar**
I followed the steps others have advised, remove circlip, on side, use a socket to push ( with a hammer) the bearing through the junction and then hopefully release it.
Well suffice to say, it didn’t want to shift, got the bearing all the way through, but not enough to remove the head of the bearing and separate the junction.
Another MNR forum member ( Simon O’Kane) suggested looking at separating the prop midway at its expansion point. After some effort i managed to do that, but i now have to try and get the bearings back into the head of the prop, which at the time of writing was proving a challenge 😉