I took apart the 3 speed hub from an old bike given to me. The thin bearing was broken. It's about 2 inches in diameter. Where do I go to buy the replacement bearing for this?
I appreciate any help. Thanks
As above, you need to know the hob model to figure out an exact replacement. Parts for Shimano 3-speed hubs were hard to get even when they were being manufactured, so finding replacement parts now will be very tough. I like Reptiles suggestion of just getting a parts bike.
An alternative would be to remove the retainer and rebuild the hub using loose bearings. This is also tough, and requires advanced mechanical experience.
Thank you Jeff Wills and John Thompson for your inputs . I guess this bike looks like it is 20 years old. It will be hard to find the bearing for this. The marking on the hub is Shimano 3sc, so I guess that is the model number? It doesn't look like the diagram John posted. I will try to take a picture of the hub and post it.
2012 Trek T900; 1992 Trek 520 Tour; 1956 Robin Hood; 1965 Robin Hood; 1973 Raleigh LTD-3; 1981 Fuji Grand Tour; 2008 Iron Horse Commuter; 1981 Schwinn Varsity; 1980 Huffy Bay Pointe 3-speed; and several other American 3-speeds
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.