The most detailed car tire small knowledge
Nov 19,2024
Tire development has gone through four stages
Since the birth of the world's first rubber pneumatic tire in 1888, automobile tires have been born for 131 years! It has gone through four stages: ① rubber pneumatic tire ② steel wire radial tire ③ meridian, flat, tubeless ④ safety, intelligence and green.
Take an example
Tire width:The wider the tire width, the better the grip, but the wider the tire, the greater the rolling resistance, the higher the fuel consumption, and the greater the tire noise. Therefore, the wider the tire, the better. The best.
Flat ratio:The higher the aspect ratio of the tire, the larger the buffer area of the tire, the better the filtering performance for small vibrations on the road, and the higher the comfort of the tire. The smaller the aspect ratio of the tire, the smaller the deformation of the sidewall of the vehicle when cornering, the better the tire grip, and the faster the steering response speed, the better the handling of the vehicle, and the thinner the sidewall to give the feedback of the road better, Generally used for sports models. Simply put, the higher the aspect ratio, the better the comfort type, the better the aspect ratio, and the better the controllability. You can't have both fish and bear's paw.
Radial tires:Radial tire refers to the weaving arrangement direction of the inner ply of the tire at a 90 degree angle to the centerline of the tread, which is named after the radial line on the globe. Generally, the radial tires of family cars have a steel wire layer on the top of the tread, and a nylon cord layer on the sidewall. The steel wire layer of the tread can make the tire tread not easily deformed, so as to get better grip. The side cord layer It will make the driving stability of the vehicle better, and at the same time, it has better cushioning on the road surface, is relatively more comfortable, and is more suitable for high-speed driving. Today's cars generally use radial tires. Large trucks with greater load requirements generally use all-steel tires, and general medium trucks use bias tires.
Load index and speed class:The load index refers to the maximum weight that a tire can bear under normal tire pressure. The speed rating refers to the maximum speed of the tire within the specified load. Generally, in addition to the use of cargo vehicles, family cars generally do not need to consider the problem of load index, and the speed level is an indicator that does not need to be considered. For example, the speed grade of 145/70R12 tire with the smallest specification of commonly used tires is Q, which is 160km according to the speed registration form. The domestic high-speed speed limit is 120km, and the distance limit is 40km. However, most of the tires equipped with such small tires are electric vehicles or elderly scooters, and it is difficult to run 120km at the highest speed.
The role of each layer of tires?
Role:
Tread: contact the ground, drive, brake, anti-skid, shock absorption, protect the carcass
Sidewall: Protected carcass, flex-resistant
Crown layer: binding and protective belt layer to improve high speed and puncture resistance
Belt: fixed carcass and increase the rigidity of the tread
Carcass: Like a human skeleton to the body, bear the stress of the tire part, cushion and stabilize the size
Liner: in place of tube
Wire ring: firmly fix the tire on the rim
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Contact Information
Jinzhou Unical Tyre Co.,Ltd.
Address: No. 27A-301, Baoji Platinum Building, Central South Street, Taihe District, Jinzhou City, Liaoning Province
Hotline: 86-18841677776 86-416-3801508
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