Abstract
The results of oil film thickness investigations in non-conformal contact in sliding pairs with modified surfaces are presented in the article. The investigations were realized on a ball-on-disc instrument with colorimetric interferometry. Balls were made from 100Cr6 steel of hardness 60–62 HRC. The diameter of balls was 19.05 mm. The tests were carried out at the applied loads of 20 N and 30 N. The glass disc rotated at speeds from 0.1 m/s to 0.2 m/s. At the highest speed (0.2 m/s) the highest maximum value of the oil film thickness of 217 nm was obtained. At 0.2 m/s, the oil film thickness was up to 82% greater than at 0.1 m/s. At 0.1 m/s the maximum oil film thickness values were 100–157 nm. The greatest maximum values of the oil film thickness were received by balls with the smaller surface height application in all of the studied cases.
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