Jason compares position vs ASME concentricity for aligning inner and outer diameters of a cylindrical part, showing how form error impacts the measurements.
In this Question Line video, Jason compares coaxiality and concentricity, as well as position, as defined by the ISO 1101 standard.
The video below is in response to a question that we received on our question line from Jeff. Jeff asked us if concentricity is always equal to half of the runout value. ASME Y14.5 defines...
Controls whether the median points of a cylindrical feature share the same axis as a datum. Expensive to inspect — position or runout usually works better.