What's the name of the bearing on the shock absorber?
The flat bearing on the shock absorber is a component consisting of a row of steel balls (with a cage), a shaft ring (with a tight fit with the shaft) and a seat ring (with a gap between the shaft and the shaft), and the steel ball rotates between the shaft ring and the seat. It can only withstand axial loads in one direction and cannot withstand radial loads. Because the axial load is evenly distributed on each steel ball, it has a large bearing capacity; However, the temperature rise during operation is large, and the allowable limit speed is low.
The advantage of flat bearings is that high-precision cylindrical rollers (needle rollers) are used to increase the contact length, so that the bearing can obtain high carrying capacity and high stiffness in a small space. Another advantage is that the gasket can be omitted if the surface of the adjacent part fits the raceway surface, which can make the design more compact. In DF flat needle roller bearings and flat cylindrical roller bearings, the cylindrical surface of the needle roller and cylindrical roller used is a modified surface, which can reduce the edge stress and extend the service life.
Plane bearings play the role of shock absorption and body movement connection to avoid direct friction between axles
How is the front shock absorbing plane bearing broken?
When the front shock absorbing plane bearing of the car is damaged, the following situations will occur:
Abnormal sound: When the shock absorbing plane bearing is damaged due to serious wear, the vehicle shock absorber will make an abnormal sound at work, and the steering wheel vibration can be felt in serious cases.
In situ steering abnormal sound: even if the shock absorber is not working, due to the excessive wear and damage of the flat bearing, the steering wheel in situ will also emit a very obvious abnormal sound.
Increased noise: Due to the damage of the shock absorbing plane bearing, the shock absorber will absorb the vibration and impact in the process of working, and will be transmitted from the frame to the driving room without reservation.
Direction offset: When the shock absorbing plane bearing is damaged, the direction of the vehicle may be slightly offset, difficult to correct, and the phenomenon of low correcting force.
Traveling noise: When driving on bumpy roads or over speed bumps, you can hear abnormal noise.
Steering wheel vibration: When the plane bearing is broken, the steering wheel will also vibrate.
Not enough power, not enough acceleration, excessive fuel consumption, excessive emissions.
The failure of the damping plane bearing will affect the performance of the car and lead to the poor driving experience of the car.
The impact of plane bearing damage can not be ignored, if the damage is not very large, will directly affect the ride comfort, the car in the process of driving tire noise, there may be deviation phenomenon, if the plane bearing damage is more serious, will lead to suspension damage, so that the car steering system failure, serious will lead to traffic accidents.
The car will squeak when it turns the steering wheel in place or at a low speed, and can feel the steering wheel vibration when it is serious, which indicates that the shock absorbing plane bearing is damaged, and the car will also have a buzzing sound during driving, which is caused by excessive tire noise, abnormal sound when it passes the speed bump, or the phenomenon of deviation during driving. This is all caused by damage to the damping flat bearing.
If the shock absorption of the car is not obvious during the driving process, you can add some lubricating oil to the shock absorber appropriately, and the emergency braking of the car will appear violent vibration when the car is driving slowly, which indicates that the shock absorption is faulty and needs timely maintenance.
When the shock absorber of the vehicle leaks oil, it can still be driven normally, but the direct impact of the shock absorber without damping is the reduction of comfort. If the speed is very fast, even a very smooth road will cause ups and downs, which seriously reduces the stability of the vehicle.
After the shock absorber is subjected to abnormal impact, the shock absorber core is bent and deformed, resulting in a matching gap in the oil seal, which will also make the sealing performance of the oil seal ineffective. This type of situation mainly occurs in MacPherson shock absorbers that are often subjected to forces that are not axially balanced with the shock absorber.
The damping provided by the shock absorber is generated by the flow of the shock absorber inside the shock absorber. When the shock absorber appears oil leakage phenomenon, it means the loss of the shock absorber, which will make the shock absorber lose the original ability to inhibit the movement of the spring, resulting in negative effects such as dynamic instability of the body.
If you have maintenance experience, you can try to replace it yourself. However, if you do not have experience, it is recommended to find professional and technical personnel to repair and replace. Especially if the vehicle is found to make a gurgling sound when turning at low speed or in place, this is usually a sign of abnormal flat bearings, which needs to be replaced in time.
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