RT Journal Article SR Electronic A1 Paľová, Katarína A1 Kelemenová, Tatiana T1 Specific Aspects of Roughness Measurement JF Acta Mechanica Slovaca YR 2024 VO 28 IS 3 SP 36 OP 40 DO 10.21496/ams.2024.028 UL https://www.actamechanica.sk/artkey/ams-202403-0004.php AB The article deals with problems in determining the surface roughness of parts. The arithmetic mean height of the roughness Ra is mainly monitored. This quantity is most often used when defining the required surface quality of components. Assessment of surface roughness is important in the production of parts, their assembly and their use. This article solves some problems in the process of determining this quantity.