This forum my last hope?

[tommyheadleycox]

Greetings, one and all,

I'm posting here because the folks seem genuinely helpful. I need a pinion gear. It's not for a truck but a Maxon coreless motor to go in a big German train I have. I've done a lot of research, but haven't found a match. I'm hoping that someone here might tell me how to proceed. Here's the info about the needed gear:

10 tooth
2 mm bore
7 mm outside diameter (might have once been 7.5- it's now worn.)
5 mm inside diameter (base of teeth)
5 mm length

Detailed picture at:

http://www.flickr.com/photos/28638959@N08/5303819296/

Thanks,
Tom Cox

PS: I have looked at dozens of vendor sites and found close matches. But I just don't know how to proceed. I know that it's a very dicey thing to try to replace a pinion and get good mesh. But I want to try. The engine has nostalgic value to me. Train forum folks haven't been able to help.