1 bar14.5 psi
1psi = 6.895kpa = 0.069476bar 0.004476mpa,
Countries such as Europe and America are used to using psi as the unit.
2. 1 bar = 100000 Pa = 10 Newton/cm2 = 0. 1 MPa.
Bar is the unit of pressure, which used to be millibar in meteorology, but now it is changed to equivalent international unit hectopascals.
1 Pa is the abbreviation of 1 Pascal, which means that one square meter bears a pressure of one Newton.
3.k is thousand, pa is Pascal, and together it is thousand Pascal, the unit of pressure.
4. The tire pressure of automobile tires is found on the doorpost and the fuel tank cover, where it is the most accurate. The tire pressure of an ordinary car is between 2.0-2.3 in the front and 2.2-2.5 in the back.
Extended data:
1, tire pressure, strictly speaking, refers to the pressure of air inside the tire. The engine is the heart of the car in car maintenance, and the damage of the engine will lead to the exhaustion of the life of the car, so the tire pressure is the blood pressure of the car, and the level of tire pressure plays a vital role in the performance and power of the car.
2. Air pressure is the key to tire. Too high or too low will shorten the service life of tires. If the air pressure is too low, the deformation of the carcass will increase, and cracks will easily appear on the sidewall. At the same time, it will produce buckling movement, lead to excessive heating, promote rubber aging, tire cord fatigue and cord fracture. It will also increase the contact area of the tire and accelerate the wear of the shoulder. If the air pressure is too high, the tire cord will be excessively stretched and deformed, and the elasticity of the carcass will decrease, which will increase the load when the car is running. Once hit, it will cause internal cracking and explosion. At the same time, too high air pressure will accelerate tire crown wear and reduce rolling resistance.
3. The passability of a car depends on many factors, among which the tire is an important factor, including tire pattern, diameter and air pressure. For the same tire, the required air pressure is different when passing through different roads. When driving on good roads, try to make the air pressure reach the standard value, and when driving on soft roads, try to make the air pressure lower, otherwise it will easily cause the tires to slip in place.
References:
Baidu Encyclopedia: Tire Pressure