IT Tolerance Grades for GD&T

IT Tolerance Grades for GD&T

Anyone have a reference for using IT Tolerance Grades (http://ift.tt/2fuIG5B) with GD&T dimensions? Maybe it doesn't even apply. In general I struggle with what is tight vs loose for runout, profile, parallelism, etc…

In other words, I am curious if there exists a reference that says something like… IT grade 7 would have a runout of something like 0.0010 inch + 0.0005 inch per inch while grade 10 might be 0.002 inch + 0.001 inch per inch. Note that I totally understand that this is all highly conditional on geometry…

Submitted July 10, 2017 at 04:09PM by RedAnsem
via reddit http://ift.tt/2tHg1PS

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IT Tolerance Grades for GD&T

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