GMR Chain specs needed

[GreyGhost]

I work for an engineering company and they are interested in helping us with our 1 inch chain issue, but I need specs on the chain and sprockets before they can be made.

Sprocket inner and outer Diameters? Tooth count? They are 3/8 pitch on the teeth.

Chain is a double roller, but what is the roller width, diameter and length? The more details the easier this will be to get made and tested. Anyone know the tinsel strength?

 

[GreyGhost]

This helps with the chains, but still looking for specific sprocket info. Seems Japan made the almighty 1 inch sprockets. Scroll down to pg 7.

http://www.kingomatic.com/documents/Morse chain catalog 2007 (2).pdf

 

[mechguy]

Very good idea. I have also thought about doing this. I don't know any of those specs so I cannot directly help you, but my $0.02 is this: Find somebody who owns a GMR set that is not currently in use and ask if you can borrow it for a few $$. Immediately have somebody at your office do a 3-D CAD model of it. If the materials are not explicitely known, have an X-ray spectroscopy performed to determine composition.