Thanks for your help guys.
I do use BA International when I can't get bearings but as you can imagine with 50 odd surgeries to look after I get a lot of handpieces for repair and it costs us around 4 times the cost of the bearings to get them repaired elsewhere. I was hoping I might be able to find a supplier in the U.K as it takes an age to get them from the U.S. I have been waiting for an order since April!