Posted by Ric Ashcraft on August 03, 1999 at 15:42:55:

Know any tricks to obtain a large prime ratio?

I need to design a spur gearbox with a gear ratio of 431:1, exactly. Note that 431 is a prime number. I

don't belive it is possible, unless you have a gear in the train with 431 teeth (or a multiple of 431). Does anyone know

of a trick to obtain pinion and gear teeth counts that produce a large, prime number ratio without having

a gear with the number of teeth equal to the large prime number? Note that I am only asking for help in

finding numbers of teeth, not a complete design procedure.

- Re: Large Prime-Number Ratio
**Anthony D. Rhodes***11/10/99*(0) - Re: Large Prime-Number Ratio
**Bill***8/04/99*(5)- Re: Large Prime-Number Ratio
**Ric Ashcraft***8/10/99*(3)- Re: Large Prime-Number Ratio
**Bill***8/11/99*(1)

- Re: Large Prime-Number Ratio

- Re: Large Prime-Number Ratio