Pitch Line Runout


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Posted by Frank on August 16, 2007 at 03:48:52:

I have a print which calls for AGMA class 7.

There is also another note for "Pitch Line Runout" of .0015

I looked in the AGMA Inspection Manual. It does not list the exact wording of "Pitch Line Runout"

My first thought was the .0015 was for the Pitch DIAMETER Runout. This can not be correct because the AGMA Class 7 Calls for Pitch Diameter runout of up to .006 T.I.R. (reference 8DP, 15 Tooth)

Can someone explain what Pitch Line Rounout actually refers to ?


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