e-Learning: Counter Surfaces

This lesson introduces the fundamentals of surface finish and explains how surface characteristics influence sealing performance and reliability in real-world applications.

• Importance of surface finish in sealing systems
• Effects on seal performance and functionality
• Understanding common surface profiles

This lesson introduces the fundamentals of surface finish measurement, explaining how different profilometer technologies are used to assess surface characteristics and support sealing performance evaluation.

• Surface finish measurement methods and scales
• Contact and non-contact profilometer applications
• Understanding measurement outputs and surface data

This lesson explores the most important surface roughness parameters used in sealing technology, helping engineers understand how roughness measurements are defined and how key parameters are used to evaluate sealing surfaces.

• Sampling, evaluation and traverse lengths
• Common roughness parameters, including Ra, Rz, Rt, and Rp
• Functional surface parameters such as Rmr, Rsk, Rk, Rvk, and Rpk