This geometric tolerance describes the radial deviation of a target feature when the target is rotated around an axis or straight line.
The specification of a reference point is always required.
A distinction is made between total runout (radial) and total runout (axial):
Total runout (radial) = total runout tolerance.
In this case, the tolerance zone is limited by two coaxial cylinders which are at a specified distance from each other and parallel to the specified reference axis.
Total runout (axial) = Total axial runout tolerance
Two parallel planes at a given distance from each other and perpendicular to the reference axis form the tolerance zone.
![Total runout in Plastic Industry Total runout in Injection Molding](https://www.plexpert.ca/wp-content/uploads/2021/12/Total_runout.png)
Quality Assurance: The shell surface has to be between two cylinders with radial distance 0.2mm
Related topics: