Radiale Reifen mit mindestens zwei mit Stahleinzeldrähten verstärkten Gürtellagen

摘要

The present invention relates to a pneumatic radial tire wherein at least two belt plies are reinforced with steel monofilaments, said monofilaments being laid at a count ranging from 25 to 60 ends per inch (25,4 mm); each monofilament having a diameter of from .25 to .40 mm; a tensile strength of at least 4080 MPa - (2000 x D) x 95 percent, where D is the filament diameter in millimeters; and a fatigue resistance of at least 3500 cycles as measured by the three roll bending fatigue test.