Sham

Hi, this is the gear I'm trying to find a replacement for. 65mm diameter, 50mm height, 11 teeth (1mm). Bore hole is 2mm but it has a flat side and I don't know what you call it? I've uploaded a pic hoping this will help. Any help would be very much appreciated!

Many thanks for your suggestions guys, I will definitely give them a try!

Hi All, I'm fairly new to stargazing and was looking for some help with my telescope. I've been happy with my Meade ETX 90 RA for a while until it stopped focusing. I've traced the problem to a broken plastic cog on the motor. Back in the day I would have popped into Maplin to get myself sorted but I don't have a clue where to get telescope parts. I live in West Yorkshire and it looks like the Green Witch in Birstall is closed down. Would anyone be able to provide some suggestions? Many thanks in advance!