Car rear axle noise identification and maintenance method
The rear axle assembly will make an abnormal noise during the driving process. What is the reason? How to maintain the rear axle of the car? Let's take a look at the car rear axle noise identification and maintenance methods, I hope to help everyone.
Car rear axle noise identification
1. The difference between the abnormality of the hub bearing and the noise of the rear axle of the car
When the car is driving and taxiing, the noise of the front wheel bearing does not change. If the vehicle speed is kept constant and the brake is applied slightly, the wheel load bearing can reduce the partial load, thereby reducing the noise and finding out where the noise source comes from. When the vehicle speed is greater than 48km/h, unless the rear axle is seriously damaged, the noise of the rear wheel bearing is rarely heard in general. When the car is coasting or neutral, the cracked rear wheel bearing will produce a “rumbling” sound, and the ablation The rear wheel bearing makes a "sand" sound.
2. Distortion between tire noise and rear axle noise of the car
Tire noise varies with the road surface, and the rear axle noise of the car is not. When the speed of the car is lower than 48km/h, the rear axle noise of the car disappears and the tire noise continues to exist. The noise of the tires is the same when the car is driving and taxiing, but the noise of the rear axle of the car is different.
3. The resolution of the rear axle gear noise of the car
In normal straight running, no noise is heard because the differential half shaft gear and the planetary gear have almost no relative motion.
4. Distinction between the reducer cone active bearing and the rear axle differential bearing of the car
Reducer bearings usually produce harsh "rumbling" or "beep" sounds, and the sound beats are stable and change as the speed of the car changes. The front bearing of the tapered drive gear of the reducer is louder when the car is taxiing, and the noise of the rear bearing is larger when driving. The noise of a differential bearing is usually a constant squeak, but its tempo is much more moderate than that of a reducer cone drive gear.
Car rear axle maintenance method
1. Check the usage of each component regularly.
2. Apply high-quality lubricating oil to the bearing parts to avoid friction and damage.
3. Regularly check the wear of each bearing joint.
4. Check if the parts are tight and there are no missing.
5. regular cleaning, dredge impurities, to ensure that no accidents occur when the car is running.
6. Check the degree of wear at the tire and bearing links.
7. When looking for maintenance, look for regular axle manufacturers for maintenance, so as to avoid mistakes while maintaining.
The above is about the identification and maintenance methods of the abnormal sound of the rear axle of the car. I hope that everyone can understand the abnormal sound of the rear axle of the car and it is helpful to everyone.