What are the two types of car tires classified by carcass structure?
1 Answers
Car tires can be divided into bias-ply tires and radial tires based on their carcass structure. Bias-ply tires: Bias-ply tires, also known as conventional structure tires, refer to pneumatic tires where the carcass plies and breaker layers have adjacent ply cords that cross each other and are arranged at an angle of less than 90 degrees to the tire's centerline. These tires have good longitudinal rigidity and are suitable for medium-speed driving on regular roads. Radial tires: Radial tires are a new type of tire where the carcass cords are arranged in the radial direction, with a breaker layer that has cords arranged circumferentially or nearly circumferentially tightly wrapped around the carcass. They consist of six main parts: tread, carcass, sidewall, breaker layer (or belt layer), bead, and inner liner (or air barrier layer). These tires include all-steel radial tires and steel-belted radial tires with fiber carcasses. Car tires can also be classified by tread pattern into ribbed pattern tires, transverse pattern tires, mixed pattern tires, and off-road pattern tires. By type, car tires can be roughly divided into 8 categories: PC (passenger car) tires; LT (light truck) tires; TB (truck and bus) tires; AG (agricultural vehicle) tires; OTR (off-the-road) tires; ID (industrial vehicle) tires; AC (aircraft) tires; and MC (motorcycle) tires. By size, car tires can be classified into full-size spare tires and non-full-size spare tires: Full-size spare tires: These spare tires are identical in size to the other four tires on the vehicle and can replace any temporarily or permanently unusable tire. Non-full-size spare tires: These spare tires have a slightly smaller diameter and width compared to the other four tires and can only be used as a temporary replacement. They should only be used on non-driving wheels and must not exceed a speed of 80 km/h.
