January 2nd, 2008 by 
SteveUK
This is a guide for overhauling a rear Shimano Deore cassette hub, which uses cup and cone bearings. The cup is the bearing race which is built into the hub; the cone is the corresponding race which is threaded onto the axle. Whilst cone races can be replaced if they are worn or pitted, the cups of the hub can not. Any pitting or excessive wear to the cup races is terminal and means replacing the entire hub. Click for more…
