This paper investigates the effect of silicon carbide reinforcement in the range of 5–25 wt.% on the tribological properties of polymer composite materials based on epoxy resin under dry friction conditions. It is shown that reinforcing the ED-20 + PEPA polymer composites with 5 wt.% SiC leads to an increase in the coefficient of friction and a reduction in material mass wear. Increasing the reinforcing phase content to 15 wt.% SiC results in a slight decrease in the coefficient of friction compared to 5 wt.% SiC, while continuing to reduce mass wear. The highest coefficient of friction and the lowest material mass wear are observed in the sample reinforced with 25 wt.% silicon carbide.