Thanks Joe, Grumpy,
As promised I've added another photo for posterity. You can see there's no bearing case like Joe said. I can't see any obvious shiny marks and I've been thinking it might be the mesh cup not being tight enough on the shaft, if that's possible. Mechanically challenged again.
[Linked Image]

Attachments
IMGP0005.png (2.4 MB, 54 downloads)
Last edited by Bruce; 04/07/12 10:23 PM. Reason: corrected image