Chain Length Calculation: Difference between revisions

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[[Image:Chain-length-math.png]]
[[Image:Chain-length-math.png]]
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Another formula:<br>
[[Image:Emerson-ept-math.gif]]
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Revision as of 00:11, 5 December 2006

Understanding the Problem

A chainwheel is not round. Rather, it is a polygon with facet lenth of the chain pitch. The chain leaves the chainwheel, on average, tangent to the pitch diameter. The chain then travels in a (theoretically) straight line to the other chainwheel, meeting it in a similar fashion.

This makes for some interesting math.

The most accurate math


Another formula:
File:Emerson-ept-math.gif

Some Approximations

Some Data



Tabular Example