It is spot on. I recommend getting the Park pin spanner to loosen and tighten the red seal. Also, it was pretty cold when I swapped the bearing out in the garage and it needed some encouragement with a rubber mallet and a socket. If you do it in a warmer room it may be easier?
I serviced my red 18T WI freesheel two days ago. I bought this: http://www.bearingboys.co.uk/61808-2RS_Sealed_Thin_Section_Ball_Bearing-2091-p
It is spot on. I recommend getting the Park pin spanner to loosen and tighten the red seal. Also, it was pretty cold when I swapped the bearing out in the garage and it needed some encouragement with a rubber mallet and a socket. If you do it in a warmer room it may be easier?