FIELD: automotive industry.
SUBSTANCE: proposed tire contains one carcass reinforcement layer secured in each bead by turning over ring member, and system consisting of at least two textile bead strengthening layers arranged in contact with ring member. Metal ring member features tensile strength whose value is 3 to 5 times as great as tension stress imparted to carcass at inflating the tire to recommended pressure and whose relative elongation at breaking is not less than 6%. Combination of bead strengthening layers made up of aromatic polyamide features tensile strength whose value is 0.5 to 1 of tensile strength of ring member, and sum of values of tensile strength of ring member, and sum of values of tensile strength of said member and combination of bead strengthening layers is 6 to 8 times as great at tension stress imparted to carcass.
EFFECT: facilitated mounting of tire on rim at preservation of strength characteristics of tire.
4 cl, 2 dwg
