Just taken my bosch's apart to see why they failed at the uk champs;
Turns out the shaft is 8mm with a spline on the outside which is simply pushed into the nylon gear... and eventually this connection just wears out.
Im going to look into getting some brass gears machined.
If anyones interested in a set PM me.
Ill put the prices and details up in the for sale section when i know more.
http://i685.photobucket.com/albums/v...s/32ad5d65.jpg
