FIELD: transport.
SUBSTANCE: invention relates to automotive tires, particularly to design and truck and car radial tires. Proposed casing comprises tread, breaker, side strips, tire bead, bead rings, filling cords and flipper. Bead rings are made from 1.2 to 1.4 mm-dia wire. Bead wire spacing in strand vs bead wire diametre makes 1.18-1.28. rubberised strand thickness vs bead wire diametre makes 1.15…1.29. Tensile strength of bead wore makes at least 2690 H. Relative rubber content between adjacent strands makes 0.16…0.21.
EFFECT: lower material/output ratio and labor input due to reduced weight of bead rings.
3 dwg
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