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[DPRG] 1/4" #25 chain sprocket sizes.

Subject: [DPRG] 1/4" #25 chain sprocket sizes.
From: Earl Bollinger earlwbollinger at comcast.net
Date: Mon Nov 10 22:02:01 CST 2003

Thanks for the hint. Ramsey got me all excited, but the formula doesn't
seem to be working. 
For example PD = 1/(sin(180/n)  for a 0.25/(sin(180/96)) is yielding a
number that isn't right (0.262 inches) when it should be around 7-10
inches in diameter.
maybe their formula works for really big chains. Or my calculator
program is no good.
I'm still looking though.
-----Original Message-----
>From: RoboVac [mailto:robovac at mninter.net] 
Sent: Monday, November 10, 2003 9:36 AM
To: Earl Bollinger
Subject: Re: [DPRG] 1/4" #25 chain sprocket sizes.
I have not done chain calculations for years, but when I used to do it
several times a week I would just use the tables in the chain
manufacturers catalogs.  I am sure they now have such tables on their
web sites.  Martian and Rexnord used to have the best info.
Do not know if this really helps, good luck.
----- Original Message ----- 
>From: Earl <mailto:earlwbollinger at comcast.net>  Bollinger 
To: dprglist at dprg.org 
Sent: Sunday, November 09, 2003 9:06 PM
Subject: [DPRG] 1/4" #25 chain sprocket sizes.
Does anyone remember or have the formulas for calculating chain sprocket
sizes for 25 pitch chains?
This is where you can enter the number of teeth and you can get the
diameter of the sprocket needed for that tooth count and vice versa.
I thought I had them someplace but now I can't find them anymore.
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