ISO 10303-214:2010(E)

Figure — Arrowleft Figure — Clause 4 Figure — Arrowright

4.2.69 Circular_runout_tolerance

A Circular_runout_tolerance is a geometric constraint on the circularity of curves pertaining to a surface described by the rotation of a part about an axis.

The tolerance is applied independently at any circular measuring position as the part is rotated 360 degrees.

NOTE Where applied to surfaces constructed around a datum axis, Circular_runout_tolerance may be used to control the cumulative variations of circularity and coaxiality. Where applied to surfaces constructed at right angles to the datum axis, Circular_runout_tolerance controls circular elements of a plane surface.

A Circular_runout_tolerance is a type of Geometric_tolerance.

The data associated with a Circular_runout_tolerance are the following:

4.2.69.1 angle

The angle specifies the direction in which the runout tolerance is controlled.

If the angle is specified, the runout tolerance applies in this angle which is fixed with respect to the datum axis. If the angle is not specified, the runout tolerance applies normal to the surface generated by the rotation.

The angle need not be specified for a particular Circular_runout_tolerance.

4.2.69.2 reference_datum

The reference_datum specifies the Datum_reference objects that define the reference for this type of geometric tolerance.

See circular_runout_tolerance to datum_reference for the application assertion.



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