A review of passenger tire construction and the engineering properties required of belt ply materials is presented. Comments are made on the areas of wire cord construction that must be investigated in order for the cost of wire cord to be reduced. Included are elastic modulus, dimensional stability, adhesion to rubber, environmental sensitivity, column strength, tensile strength, bending modulus, and endurance limit.
The joint responsibilities of the equipment manufacturers, wire cord manufacturers, and tire companies are discussed.
