Abstract: The invention relates to a polyamide cord for use as carcass strength member in a pneumatic vehicle tire, wherein the polyamide cord has a residual shrinkage in the range from 0% to 2% and a shrinkage at 180° C. in the range from 0% to 4.5%, where the residual shrinkage of the polyamide cord and the shrinkage at 180° C. of the polyamide cord are determined to ASTM D 855. The invention also relates to a pneumatic vehicle tire comprising one or more polyamide cords and to a process for producing one or more polyamide cords, to a process for producing a rubberized reinforcement ply and to a process for producing a pneumatic vehicle tire.

Abstract: A beltless pneumatic vehicle tire has a ratio of cross-sectional width to cross-sectional height of 1 or 0.85 determined in accordance with E.T.R.T.O standards and includes: a carcass of diagonal configuration including carcass inserts arranged one atop the other. Each carcass insert includes mutually parallel running reinforcement elements made of textile material and a rubber matrix wherein the reinforcement elements are embedded. The tire defines a tire zenith and a peripheral direction. The reinforcement elements of each two mutually adjacent ones of the carcass inserts are disposed relative to one another in a cross-bracing arrangement and run at respective equal acute angles (?, ?) to the peripheral direction at the tire zenith. For a beltless pneumatic vehicle tire wherein the ratio is 1, the angle is between 28° and 34° and wherein the ratio is 0.85, the angle is between 26° and 32°.