Originally Posted by
OLii
Well, something else doesn't look good, the plastic ring doesn't fit down onto that aluminium disc. I can't seem to find a photo of how it should go together. Any ideas?
The photo I posted above shows how the balls should be, with the open side facing away from the cups, towards the cones, so in the bike the bottom set is open side down and the top set is open side up.
This shows how everything goes together, but not very clearly:

It's from
this Tange catalogue where it might be a little clearer.
From what I can see there's a plastic seal that goes under the adjusting race to sit against the top lip of the cup, then the race and locknut, and the other plastic seal sits inside the top of the trim piece.