Graham wrote:

"landotter" wrote in message
...
On May 24, 2:41pm, "Graham"
wrote:
[Snip]
If it is possible to replace the bearings does anyone know where I
could get
hold of a set in the UK and how difficult the replacement job might
be. It
looks as though it would simply be - press the old ones out and the
new ones
in.

That's about it. Punch the old ones out from behind with whatever you
don't care about. I use an old screwdriver and a mallet. Then press in
the new ones with a block of wood and a hammer/mallet, making sure
that everything's even and flush. Just a couple minutes time. Grease
the outside of the bearing--as it's steel friction fit in alu--which
could otherwise chemically weld together.

Thanks landotter. All I now need to do is track down a supplier of the
required bearings unless of course they are a generic spec which I
could get from any bearing supplier. Anyone know what the generic
equivalents might be?

Graham.

Often bearings are stamped with a number that can be cross-referenced.
If you have a caliper, perhaps measuring the ID, OD & thickness will get
you a serviceable replacement. I don't have any experience with
cartridge bearing hubs, but I do with cartridge bearings, I'd be
surprised if they use anything unique.