I am currently offering a number of spare plastic gears and one bearing on eBay for a Sieg X1/ Clarke CMD10 type mini milling machine (also sold under various other names). I am asking £12 including post and packing, which is about half the retail price, but I am open to offers from forum members, so if anyone is interested, please PM me.
I no longer need these gears as I have converted my machine to belt drive.