Posted by BillS on March 18, 2008 at 23:33:14:
In Reply to: Re: Measurement of Chordal height and thickness posted by Mr. Shukla on March 15, 2008 at 05:54:29:
here is a formula for chordal thickness:
Tc = D x sin(90/N)
where D is pitch diameter and N is number of teeth.
Here is chordal addendum:
Ac = A + t^2/(4 x D)
where A is the true addendum, t is circular thickness at pitch diameter D.
I took this straight out of the Machinery Handbook.
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