Abstract In order to extend the service life of automobile electronic water pump sliding bearings, reduce friction loss, and increase the efficiency of automobile electronic water pumps, it is necessary to improve the tribological properties of sliding bearing auxiliary materials. In this paper, through the design of the test scheme, preparation of test materials, pin plate friction test and analysis of the results, friction and wear properties of the antimony graphite, carbon fiber reinforced PPS, Al 2 O 3 ceramics and 4Cr13 under dry and antifreeze lubrication conditions were studied. The impact of the load on the friction coefficient and wear resistance was analyzed. The friction and wear performance of three different materials was obtained. The results showed that the PPSCF30 pin -4Cr13 disc matching pair has a lower friction coefficient under the condition of antifreeze lubrication, and the PPSCF30 pin wear was the least. Under dry friction conditions, the wear of the PPSCF30 pin -4Cr13 disc matching material was minimal. This study could provide certain references for the tribological design of electronic water pump bearings.
Meng et al. (Fri,) studied this question.