View source for GDT:Circular Runout

{{Author Credit
|author=[[User:Admin|Admin]]
}}

{{GDT Infobox
|symbol=Circular Runout
|type=Runout
|category=Runout
|standard=ASME Y14.5
|author=[[User:Admin|Admin]]
|datums=Primary datum required; secondary optional; tertiary not allowed
|modifiers=Material condition modifiers where allowed; ST where allowed
|tolerance_zone=Runout at each cross-section relative to datum axis
|image=<!-- TODO: add diagram file name -->
|mistakes=Missing datum reference; applying runout to a pattern; using tertiary datum
|related=[[F4:Circular Runout Validation]]
}}

== Summary ==
Circular runout controls variation at individual cross-sections of a surface as it rotates about a datum axis.

== Definition ==
For each cross-section, the surface must stay within a radial tolerance zone as the part is rotated about the datum axis.

== When to use it ==
Use circular runout to control roundness and coaxiality at specific sections of a rotating surface relative to a datum axis.

== Examples ==
{{GDT Example
|title=Runout relative to datum axis
|body=Circular runout applied to a cylindrical surface with datum A as the axis.
}}

== Common mistakes ==
* Missing the primary datum reference.
* Adding a tertiary datum reference.
* Applying runout to a pattern.

== Related pages ==
* [[F4:Circular Runout Validation]]

[[Category:GDT Reference]]
[[Category:Runout]]