After giving the races a good clean, I took out some red threadlocker by Loctite and gave one of the sides a good dose, spreading across the mating surface of the bearing.
Next I grabbed my bearing, my puch maxi seat post, and I dropped the bearing in place.
Once the bearing was seated, I
took measurements around the outer race and the hub to make sure the spacing was equal all the way around.
Now... DONT FORGET THE SPACER!!!
I say that as it is probably a huge pain to have to pull out a perfectly seated bearing with red loctite, and you can only use this spacer when one bearing is removed.
I measured the depth of the hub from edge of the bearing to edge of exposed bearing/hub mating surface.
I found my spacer was too big, soo I cut it, sanded it and checked the fit.