Total run-out can control the cylindricality of a feature relative to the components axis bounded by a 3D tolerance zone combing the applied control of co-axiality and cylindricality. Unlike circular run-out, total run-out is a measure of the full length of the applied surface as the part is rotated.

Controlling other Features with Run-Out

Both circular and total run-out can also be applied to a perpendicular surfaces relative to a datum axis.

Total run-out applied to a perpendicular surface will combine both the feature surface perpendicularity and flatness. Like its measure of cylindrical features, total run-out takes measurements across the full surface as the component is rotated, creating a 3D tolerance zone bounded by two surfaces.