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Total runout

Total runout is the deviation of an entire surface of revolution from perfect form and location with respect to a datum axis. The total runout tolerance zone is confined by two coaxis shapes that are the same shape as controlled feature and centered about the datum axis.

total runout

The above figure is an example of the use of a datum with total runout. It establish a single axis about which the part is rotate for an indicator check of cylindrical and flat surface indicated.


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