Those fans come apart. Good time to learn how to tear into one. The blade should just pull off the shaft. You can clean it out. Pull that sticker off the back. See if you can access the board to solder that wire back on.
Almost all plastic steering knuckles I have seen have oval bearing journals. The part shrinks in one axis after releasing from the mold due to the design that must be maintained to make them. Putting the bearing in will typically reshape them back to as they were in the mold. How far out of...