Because the frequency of each driver's brake is different, it is difficult to define how long the brake pads need to be replaced. The only way is to check the degree of wear of the brake pads during routine inspections. If it reaches the critical point, it must be replaced immediately.
Sliding bearings can be divided into non-liquid lubricated bearings and completely liquid lubricated bearings according to different friction states. Fully liquid lubricated bearings are divided into hydrodynamic lubrication bearings and hydrostatic lubrication bearings. Most of the non-liquid lubricated bearings are used in engineering. Sliding bearings have a variety of structural types: integral type, split type, automatic self-aligning type, etc. Because the sliding bearing itself has some unique advantages, it is suitable for some special occasions, such as high speed, heavy load and high precision.
Plane bearing mainly bear axial load in the assembly, which is widely used. Although the plane bearing installation operation is relatively simple, but the actual maintenance is still often wrong, that is, the bearing tight ring and loose ring installation position is not correct, the result makes the bearing lose effect, the journal is quickly worn.
When the front bearing of the car is damaged, the abnormal noise will only be emitted when the front wheel rotates, and there will be no abnormal noise when the car is stationary. Moreover, the frequency of abnormal noise tends to be higher when driving at high speeds. When the front shock absorber of the car fails, the car will also have a slight abnormal noise when it is idling and stationary. When driving on a good road, the abnormal noise will occur irregularly, and when the road is bumpy, the abnormal noise is denser.
The old car with a long time directly replace the two balance bar rubber sleeves, and if the top rubber bearing is broken, replace it together. Also, the chicken feet of the upper left, upper right and lower right engines of the old car should be changed. When the vehicle is moving, the direction often makes abnormal noise, but the direction in situ does not sound, indicating that there is a problem with the ball cage, and the direction in situ makes abnormal noise, indicating that there is a problem with the top rubber bearing or the direction machine.
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