Unknow profile shift coefficient

• Mar 8, 2023

• #2

3DDave

Aerospace

May 23, 2013

11,291

You need to measure over wires to find the shift. If you don't know the formulae then try

https://evolventdesign.com/pages/gear-measurement-over-pins-calculator

 

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• Mar 8, 2023

• #3

mfgenggear

Aerospace

Jan 23, 2008

3,476

Lucia

best bet would be to have a gear shop reverse engineer for a cost. the have unknown gear program that will make short work of it.
profile shift or any thing else, also there are cheap gear programs, very reasonable

 

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• Mar 9, 2023

• Thread starter
• #4

lucadueberto

Mechanical

Nov 27, 2014

3

Thank you for the reply but i would try to calculate the shift coefficient using a formula
Using a math formula with excell for example
Someone knew how to calculate? Thank you
Lucia

 

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• Mar 12, 2023

• #5

lbmakem

Mechanical

Feb 8, 2006

23

Hi Lucia, first what makes you think there is a shift Coeficient, secondly why can't they be standard gears.

 

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