From the course: Introduction to Geometric Dimensioning and Tolerancing

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Basic GD&T symbols: Run-out

Basic GD&T symbols: Run-out

From the course: Introduction to Geometric Dimensioning and Tolerancing

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Basic GD&T symbols: Run-out

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- [Instructor] Runout controls the tolerances of cylindrical surfaces, as these features are rotated around a given datum axis. Basic runout controls how much a particular circular element of a feature varies with respect to a given datum when the part is rotated around that datum's axis. Runout controls the wobble of a rotating element. It can be used to set limits on the cumulative effects of circularity and coaxiality. Total runout controls how much the entire surface of a cylindrical feature varies with respect to a given datum, when the part is rotated around that datum's axis. Total runout controls both wobble and flatness of a rotating element. It can be used to set limits on the cumulative effects of cylindricity and coaxiality.

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