Common Sense Of Tire Classification

Classified by use of tires.

For example, in national tire standards, American tire and rim manual, European tire and rim standards, Japanese tire standards, and international tire standards, they are all classified by use and can be divided into the following types:

1.) Car tires

is a tire mounted on a car. It is mainly used for high speed driving on good roads. The maximum driving speed can be more than 200 kilometers per hour. It requires comfortable driving, low noise, good maneuverability and stability. The tire structure mainly adopts radial structure. According to the requirements of driving speed, it is divided into different series. In standard and manual, 95 and 88 series are bias tires, and 80, 75, 70 and 65 series are radial tires.

2.) Light truck tires

Usually refers to truck tires with a rim diameter of 16 inches or less and a section width of 9 inches or more. This type of tire is mainly used on highways and the speed can generally reach 80-100 km/h.

3). Truck and bus tires

Usually refers to trucks, dump trucks, various specialty and trailer tires with a rim diameter of 18-24 inches and a section width of 7 inches or more. Its driving roads are more complicated, with good asphalt roads, poor gravel roads, dirt roads, muddy roads, icy roads, and even no road conditions. The driving speed generally does not exceed 80 km/h.

4.) Construction machinery tires

Construction tires are mounted on construction vehicles for special operations, such as loaders, bulldozers, excavators, graders, road rollers and stone cutters. The driving speed is not high, but the road conditions and load capacity are demanding. The tires mainly adopt the bias structure, but the French company Michelin, for example, also uses the radial structure. From the classification of tire section width, it can be divided into two series: standard tires and wide base tires.

5.) Off-road car tires

Off-road vehicles are driven by front and rear wheels. Tires for off-road vehicles are mainly driven on poor roads such as deserts, muddy ground, soft ground or other roads without roads. The tires require high overtaking performance. Off-road tires often use low air pressure, and some use pressure-regulated tires depending on road conditions. To adjust the tire pressure. To improve off-road performance, measures such as increasing the tire section width and rim width and reducing the rim diameter are generally taken to increase the ground contact area and reduce the ground pressure. In addition to the bias-ply structure, a radial structure is also used in the tire structure.

6.) Agricultural and forestry machinery tires

Agricultural tires are mainly used on tractors, combine harvesters and agricultural vehicles. Forestry tires are installed on forestry tractors and forestry machines for harvesting, skidding, shoveling and excavating. The characteristics of these two tires are that they have low speed requirements, but their operating conditions are harsh and they are often driven in poor condition of field roads and hard stubble fields or gravel mountain roads, even roads without roads, the tires are easily scratched or cut. Another feature is intermittent operation, short mileage but long service life, so the tire is required to have better resistance to bending, cracking and aging. The tire is mainly bias ply, but it also uses radial construction.

7.)Industrial vehicle tires

is mainly used for pneumatic tires, semi-solid tires and solid tires of industrial vehicles. It is divided into battery car tires, forklift tires and platform truck tires.

8.) Motorcycle tires

is used in motorcycle tires. Including motorcycle tires, moped tires and small wheel track motorcycle tires.

9). Aviation tires

is used for pneumatic tires on aircraft.

10) Special vehicle tires

includes gun tires, tank tires, armored vehicle tires, desert tires, explosion-proof vehicle tires, etc.

11) Rickshaw tires

Used in pneumatic tires for bicycles, tricycles and trolleys.

Classified by structure.

1) Bias tire: The carcass ply is generally at an angle of 48-55° to the radial direction, and two adjacent layers of plies are staggered to form a badger shape.

2) Radial tires: The fundamental difference between radial and bias ply tires is that the carcass cord angle is zero degrees to the radial direction and the cords of adjacent plies are parallel to each other, not crossed.