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What is the Proper Instrument for Measuring Runout?

Published in Metrology 1 min read

The proper instrument for measuring runout, as described in the provided reference, is a simple height gage.

Measuring Runout with a Simple Height Gage

Runout measurement is a critical process in ensuring the quality and accuracy of manufactured parts. The reference highlights the use of a simple height gage as a standard instrument for this task.

Here's how this measurement is typically performed based on the provided information:

  • The measurement is taken using the height gage on the reference surface of the part.
  • The part's datum axis is controlled during the process.
  • This control involves fixing all datum points.
  • The central datum axis is then rotated.
  • To facilitate this rotation and control, the part is usually constrained. Common methods for constraint include:
    • Using V-blocks
    • Mounting the part on a spindle

By using a height gage on the reference surface while the part is constrained and rotated, technicians can effectively measure the runout, which is the variation relative to the datum axis.

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