Join Date: Jul 2008
Location: Western MI
Bikes: 2015 Windsor Oxford; 2012 Trek T900; 2008 Iron Horse Commuter; 1999 Specialized Stumpjumper M2 Pro; 1999 Kona Lava Dome; 1992 Trek 520 Tour; 1980 Fuji Grand Tour SE; 1973 Raleigh LTD-3; 1956 Robin Hood; 198x Worksman Industrial Trike
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Sorry to bump this over one year thread but there is very little info on the Shimano 3SC hub.
This site has some very useful info on bearing adjustment but there must be different models because mine is a bit different. I have Green's book on old 333 hub overhaul but it is very different.
Anyway, I got a bike with this hub and I really liked it. It is a bit rough spinning even after solvent flush/oil so I took it apart last night. What I found was a deformed bearing cage as posted above. It has 16 ball bearings in it.
One ball bearing was already out of the cage and a couple cannot rotate freely.
I am trying to find one like this before I attempt loose balls.
The 3SC uses two of these large bearing cages and another smaller one fo the sprocket.
Most non-coaster brake bubs use one large cage and two small cages.
Last edited by loubapache; 11-05-12 at 07:50 AM.