Run-out testing and balancing

Run-out testing is a method used to measure the concentricity or eccentricity of a rotating object. It is commonly used in the manufacturing industry to ensure that parts are within specification and free of defects. The test involves rotating the object and measuring the radial displacement of the surface using a dial indicator or similar measurement device.

In the context of machinery, run-out testing can be used to detect problems such as wobbling or vibrations that can lead to increased wear and tear, reduced efficiency, or even failure of the equipment.

Run-out testing can also be used in the context of metrology, which is the science of measurement. In this context, the test is used to measure the precision and accuracy of instruments used in measurement, such as micrometers or calipers.

Overall, run-out testing is a useful tool for ensuring that rotating objects, whether they be parts in manufacturing or instruments in a metrology lab, are within specification and free of defects.

run out testing
Industrial run-out tester in operation

FISSO Run-Out Tester in the concentricity measurement

The FISSO Run-Out Tester and Balancing units are engineered for the rational testing of external and internal surfaces on rotating parts as well as static balancing of grinding wheels and rotating parts.


Pedro Torres

Industrial Products

VP Industrial Products

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