Classsical Timing Pulleys

Hi List

Does anyone know where I can buy XL 037 classical timing pulleys in the UK?

I had bought 14 and 28 tooth flanged ones, (Martin Sprocket and Gear Inc),
from RS Components, to implement a 2:1 reduction from Dan Mauch's
servomotors to McMaster Carr rolled stainless lead screws.

The drive worked fine so I tried to order some more to hook up the remaining
motors and screws. Guess what.... the 28 tooth pulley is now on a whopping
17 week delivery!

Farnell appear to do the belts, but not the pulleys. I'll phone them in the
morning to make sure that's not simply a catalogue omission, but I'd still
appreciate any knowledge the list has of other sources.

TIA



Brian Walsh
Glasgow
Scotland