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Sealed wheel bearings(4 posts)

Sealed wheel bearingsTrux
Aug 29, 2003 10:48 AM
I have my first bike with sealed wheel bearings (Rolf Vector comps). Are these hubs adjustable and when should they be replaced?
"Sealed" bearings in the hub.the bull
Aug 29, 2003 1:57 PM
What do you mean adjustable, are they not wide or narrow enough?
I would replace the hubs if the flange brakes.

The bearings being sealed do not require any adjustment.
If the bearing ever feel rough you should replace them.
Pop the old bearings out and stick new ones in.
My Cosmos are adjustable...TFerguson
Aug 29, 2003 4:18 PM
and a special wrench comes with them. I have had Vectors, but I don't remember if they were adjustable or not.

To replace the bearing, you may need a puller and a press to remove and install the cartriges. Replace them when they no longer run smooth.

re: Sealed wheel bearingsM_Currie
Aug 30, 2003 7:16 AM
I don't know about yours, but I've had the older Suntour sealed bearing hubs, and a Pelissier, and both of these used ordinary radial-groove industrial ball bearings, which are not really meant to be loaded from the side. For the most part, the bearings themselves should run without side play, and if they wobble, they're worn out. Nonetheless, these bearings will never be entirely free of play, because they're really not ideal for the job, and one can adjust them a tiny bit, by tightening the retaining collars to remove any play. But they should never be tightened enough to produce a preload, and if there is more than a tiny amount of play, the bearings are probably bad.