Wear between the bearings and bolt is the major failure mode for hinge joint. To alleviate the wear rate for a long service life, hard coating such as hard chromium and lubricated layer like PTFE lubrication are effective methods to improve the wear resistance. In this paper, bolts with hard chromium coating and PTFE layer were assembled with chromium coated bearing as friction pairs. Friction experiments were conducted on assembled friction pairs using a Bearing life tester to obtain the friction coefficient of the friction pair with different materials. The composition and morphology of the bolts and bearings before and after friction were determined using optical microscopy and scanning electron microscopy. Based on the wear morphology and friction coefficient, the wear mechanism of the coated bolts and bearings were discussed. The results show that the friction coefficient between the bolt and the bearing continuous increase with the friction loads. The highest friction coefficient of 0.63 is obtained in the hard chromium coated bolt and bearing friction pair, while the maximum friction coefficient between the PTFE lubricated bolt and the bearing is only 0.22. At the same time, the roughness of the bearing under friction of PTFE coated bolt is relatively stable and maintained at a low level. After friction test, the bearing tested with hard chromium coated bolt present a large amount of oxides on the surface. The oxide layer peels off in the later stage, presenting oxidation wear and abrasive wear. The surface of the bearing tested with PTFE coated bolts is mainly composed of small scratches and pits which indicates the wear is dominated by the plowing process. It can be seen that the PTFE lubricating layer can effectively alleviated the wear by reducing the friction coefficient, improving the service performance of bearings.