The shape and size of irregularities on a machined surface have a major impact on quality, performance (leakage), and longevity.

The quantification and management of surface irregularities, through the measurement of surface roughness, is necessary to maintain high product performance.

Part 3 of our video series on Surface Finish will examine important elements of why and how we measure surface finish. The full table of contents is below: 


Part 3 will discuss:

1. Why we measure Surface Finish

2. Types of surface roughness

  • Linear
  • Areal

3. How we measure surface finish

  • Contact methods
  • Non-Contact methods

4. Contact & Non-Contact measurement considerations


Watch Part 3 of our video webinar series regarding why we measure surface finish and how we measure surface finish:


For more information about Surface Finish or to speak to an engineer about proper surface finish for your application/project, contact Gallagher Fluid Seals today.