Optimized design of 12.00-20 18PR bias truck tire

The design of 12 00-20 18PR bias truck tire structure was optimized.The major measures were as follows:the outer profile of tire,the tread patterns and the bead structure were modified;twelve plies of 1400dtex/2 densified nylon cord were used instead of ten plies of 1870dtex/2 nylon cord in the carcass;the single wide cushion ply was replaced for the two narrow cushion plies;the bead filler was enlarged;and the thickness of insulating compound was increased.The performance criteria of optimized tire met with the requirements specified in the national standards and the overload capacity was significantly improved.