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Hub 'stickyness'(6 posts)

Hub 'stickyness'StevieP
Aug 6, 2002 11:17 PM
I have just greased my hubs (Ultegra) after many years of
not bothering. I tightened the cone & locking nut by hand but the wheel does not spin as freely as before I greased it (in fact it doesnt spin as freely as I would like at all).

What have I done wrong?!
Ball bearing count equal on both sides???Quack
Aug 7, 2002 6:44 AM
I'm assuming that you are using bicycle-type grease and not automotive bearing grease, auto grease can be a little thick and not roll as smoothly. As long as you have the right grease, make sure that the assemblies are perfectly clean and have the same number of ball bearings on each side. I can't remember off hand how many are in an Ultegra hub but 9 rings a bell. It is possible to have one too many bearings in one side which will cause binding when the cones are tightened. As long as the bearing count is correct, adjust the cones by hand until you can barely feel resistance while holding the wheel with your fingers on the cones and back off a touch. After you tighten the locknut against the cone, make sure that the amount of play has not changed and all should be well. Adjusting hubs is like riding a bike, you never forget how, you just get slower.

Good luck!
Ball bearing count equal on both sides???curlybike
Aug 7, 2002 6:50 AM
Ultegra has 10 3/16 balls on each side in the front and the rear has 9 1/4 balls. Adjust the cones until there is a little shake in the wheel with the q/r open and the close the q/r tight and the shake should just go away. This may take several tries.
Ball bearing count equal on both sides???curlybike
Aug 7, 2002 6:54 AM
Previous reply assumed that new balls were used, reusing old balls is false economy in my opinion. Some claim that the balls wear oval and you will never get them back in the hub the way they came out. I don't know about that, so I always replace the balls with high grade chrome balls. Just something to think about.
re: Hub 'stickyness'SnowBlind
Aug 7, 2002 9:21 AM
When you say "tightened by hand" did you leave any play at all?
You may have "overtightened" them, as you should have a little play there that gets taken up when you tighten the skewer.
Maybe nothing wrongKerry
Aug 9, 2002 5:11 PM
If you adjusted the hub properly (doesn't sound like you did) then new grease alone could cause the hub to spin less freely. It takes some miles for the grease to "oil" a little and become lower in friction. However, you need to adjust the hub for minimal play without feeling any binding, and you need to lock in the adjustment with cone wrenches. Once you've tightened things up with the cone wrenches, you need to check adjustment again to confirm that you didn't shift things when you tightened it down.