During operation of machines their moving parts have rotating and translating motion. The motion\nbetween two surfaces is accompanied by wear. Hard wear-resistant coatings based on Cr have been\nused to increase wear resistance of these parts. Methods for determining the tribological properties of\nsurfaces can be categorized according to the type of relative movement of the tested material and the\napplied bodies and the method of contact and his geometry. One of the methods most frequently used\nfor determination of tribological properties of surfaces is the ââ?¬Å?Pin-on-Discââ?¬Â method. This paper deals\nwith analysis and comparison of tribological properties and surface of two types of Cr coatings after\nthe tribo test. The tested Cr coatings were deposited by PVD technology (CrPVD) and by\nelectrochemical (galvanic) method (Crgalv). Results of tribological tests showed that maximum depth\nââ?¬Å?hââ?¬Â and width ââ?¬Å?wââ?¬Â of the wear track was observed on the galvanic Cr coating with lower hardness.
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