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Runout - Axial vs Radial

I have a part that is constantly out of tolerance on radial runout. My datum is a cylinder and my runout feature is a circle. When I change runout from from radial to axial, it’s now within tolerance.

I looked up radial runout and axial runout and the difference is radial is how far off a feature is off the datum axis but still parallel and axial is how much of a tilt the feature has to the datum axis. Which one should I use and why and I out of tolerance with only one and not both?


https://www.celeramotion.com/applimotion/support/faqs/what-are-radial-and-axial-runout-error/#:~:text=Radial%20runout%20is%20when%20the,parallel%20to%20the%20main%20axis.
Parents
  • {"data-align":"none","data-size":"full","data-tempid":"temp_23811_1669738835180_793"}
    Put the part in a good "V" Block and check concentricity of the two diameters cut during first operation. They should be as good as machine can make them!
    This will help determine where in process the problem occurs.​
    HTH
Reply
  • {"data-align":"none","data-size":"full","data-tempid":"temp_23811_1669738835180_793"}
    Put the part in a good "V" Block and check concentricity of the two diameters cut during first operation. They should be as good as machine can make them!
    This will help determine where in process the problem occurs.​
    HTH
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