Re: A wheel problem

You do not say whether or not you have managed to prise the tyre beads from
the hub itself.
If it is this that is causing the problem then it is possible to ease the
bead from the edge of the hub by compressing the tyre between two blocks
of wood in a vice.
Car tyre fitters have special large pincers that can do this as well.
If the tyre bead has seperated and the two halves are still fixed then it
is possible that there is a bush within the bearings and this is corroded
thus holding the two halves together while allowing them to rotate.
Unfortunately this can normally only be fixed by application of copious
amounts of lubricant and some carefull drifting with a metal or wooden rod
of the correct diameter.
Trust that this provides some possible answers