Posted by Stepan Lunin on December 07, 2005 at 22:53:16:
In Reply to: novikov posted by majid on November 09, 2004 at 02:22:24:

m=P.D./N
m - module
P.D. -pitch diameter
N - number of teeth
Read more about Novikov gears at www.zakgear.com
Stepan Lunin