When driving, abnormal chassis noise or a heavier steering wheel may be a warning signal for a faulty ball cage cover. Once the key components of this transmission system are damaged, it will trigger multiple crises:
⚠️  Lubrication failure: The rupture of the ball cage sleeve can cause the leakage of specialized lubricating grease, causing direct friction between the metal ball and the track, resulting in harsh and abnormal noise. During rapid acceleration or turning, metal debris generated by dry grinding can accelerate wear and tear, and in extreme cases, it can cause stepped damage to the raceway within three months, leading to power interruption.
💦  Oil leakage crisis: The damaged ball cage sleeve leaks 5-8ml of lubricating grease per hour, and the stock drops sharply by 40% after 500 kilometers. A decrease in oil can cause friction heating and seal ring hardening, ultimately leading to high-temperature deformation of the ball cage, increased risk of transmission shaft detachment, and fatal consequences of power interruption during high-speed driving.
🚦  Deterioration of driving: Faulty ball cage covers can bring four dangers - regular abnormal noise during turning (different performance for fuel vehicles/electric vehicles), high-frequency vibration of the steering wheel during acceleration, "automatic drift" caused by wheel alignment deviation, and increased jerkiness during gear shifting. Tests have shown that damaging the ball cage can cause a 3 ° deviation in the toe angle, seriously affecting handling stability.
🔧  Repair cost: It only takes 1.2 hours to replace the ball cage sleeve separately, but if it is delayed until the ball cage body is damaged, the half shaft and gearbox need to be disassembled. The total replacement time for the assembly reaches 6.8 hours, and the cost skyrockets by 10 times.
📅  Prevention plan: It is recommended to self check the status of the dust cover every 10000 kilometers and replace the entire set of components forcibly every 100000 kilometers. After wading through water during the rainy season, it is necessary to focus on checking the oil-water mixture. The initial abnormal noise is often manifested as abnormal sounds when turning at specific angles.
🌟  Case warning: A car owner ignored the oil stain warning and lost the drive shaft after 3 months. The repair cost was as high as 12000 yuan, while early treatment only required 200 yuan. This rubber accessory can be called the "safety belt" of the transmission system, and regular inspection can avoid significant losses.

one ️⃣  Abnormal noise and vibration
When the ball cage (constant velocity universal joint) of a car is damaged, the most obvious symptom is abnormal noise and vibration during driving. As a key component connecting the wheels and transmission shaft, the ball cage is responsible for maintaining smooth power transmission during vehicle turning or uneven road conditions. Once the ball or cage inside the ball cage is severely worn or even broken, it will produce a "click click" or "buzz" abnormal noise while the vehicle is driving, accompanied by slight vibrations of the steering wheel or body. This kind of abnormal noise and vibration is particularly pronounced during low-speed turns or acceleration, seriously affecting the driving experience.
two ️⃣  Inability to turn
Damage to the ball cage can also cause the vehicle to not turn flexibly. Under normal circumstances, the ball cage allows the drive shaft to rotate freely within a certain angle range, ensuring that the wheels can smoothly follow the instructions of the steering wheel for turning. However, when the ball cage malfunctions, its rotational resistance increases, causing the vehicle to become sluggish when turning, and may even experience understeer or oversteer, seriously threatening driving safety.
three ️⃣  Decreased acceleration performance
Damage to the ball cage can also have a negative impact on the acceleration performance of the vehicle. Due to internal wear of the ball cage, there may be some loss of power during transmission, resulting in the inability to efficiently transfer the torque output by the engine to the wheels. Therefore, when the driver steps on the accelerator pedal, they may feel weak acceleration and slow response, especially when starting or overtaking.
four ️⃣  Uneven tire wear
Long term use of damaged cages may also lead to uneven tire wear. Due to the malfunction of the ball cage, the wheel alignment is inaccurate, and the tires will experience uneven wear during driving, thereby shortening the service life of the tires and increasing driving costs. Meanwhile, uneven tire wear may also cause stability issues such as vehicle deviation and bumps, further affecting driving safety.
five ️⃣  Oil leakage and poor lubrication
It is worth noting that damage to the cage may sometimes be accompanied by oil leakage. Adequate lubricating oil is needed inside the cage to maintain its normal operation. Once the seals age or are damaged, the lubricating oil will leak out. This not only leads to poor lubrication inside the cage, exacerbating wear, but may also pollute the surrounding environment. Therefore, regular inspection and replacement of aging seals is one of the important measures to prevent damage to the ball cage.
In summary, the symptoms of damaged car ball cages include abnormal noise and vibration, poor steering, decreased acceleration performance, uneven tire wear, as well as oil leakage and poor lubrication. Once these symptoms are detected, the car owner should promptly take the vehicle to a professional repair shop for inspection and maintenance to avoid further deterioration of the fault and ensure driving safety.

Automechanika Shanghai 2024
Date: 2 – 5.12.2024
Booth NO: 7.1C10
Location: National Exhibition and Convention Center (Shanghai) China

Our company will participate in Shanghai International Auto Parts Exhibition (Frankfurt) in November 2023
Exhibition time: 11.29-12.02
Booth No: 1F92
Venue: Shanghai National Convention and Exhibition Center (333 Songze Avenue)
We expect to see you!

It is normal for new car glass production dates to differ. "Because car glass is typically produced by other factories and then transported to the assembly workshop for assembly, the production dates must vary depending on the batch of glass produced by the car glass factory.". "Glass spare parts will be prepared some time in advance, and there is no guarantee that they will be assembled immediately each time. Therefore, it is normal for glass production dates to differ somewhat from each other.".

It is normal for new car glass production dates to differ. "Because car glass is typically produced by other factories and then transported to the assembly workshop for assembly, the production dates must vary depending on the batch of glass produced by the car glass factory.". "Glass spare parts will be prepared some time in advance, and there is no guarantee that they will be assembled immediately each time. Therefore, it is normal for glass production dates to differ somewhat from each other.".

Identify whether the car glass has been replaced:

1. Looking at the glass label, in most cases, after the replacement of automotive glass, the label on the new glass will be significantly different from the original glass. Generally, the original glass label not only has the identification of the automobile brand, but also has the identification of the glass brand.

2. According to the production date, under normal circumstances, the production date of the entire vehicle glass is close to the production date of the entire vehicle. If there is a significant difference between the production date of one glass and the other glass, it indicates that the glass has been replaced.

3. Look at the manufacturer. By looking at the manufacturer's code number on the glass, you can see which manufacturer the glass comes from. Generally, automobile manufacturers purchase glass in batches, and do not use too many brands or different origins of the same brand.

Generally speaking, there is no accurate standard for how often the cage should be replaced, but if the cage is broken, it should be replaced at any time, as this affects the normal use of the entire vehicle transmission system.

The automobile ball cage is divided into an inner ball cage and an outer ball cage, also known as a "constant velocity universal joint.". The main function of the ball cage sleeve is to prevent dust from entering the ball cage and prevent lubricant loss within the ball cage. Damaged shafts can cause dry grinding, and in severe cases, they can lead to scrapping of the axle shafts. Therefore, routine inspections must be carried out. So the question arises, why do cars always have bad outer cages?

In fact, the outer ball cage of the front wheel of a car is still very durable under normal lubrication. The manifestation of damage is generally excessive wear. There are two reasons for excessive wear. The ball cage sleeve is missing and the seal is not tight. The main reason is that the rubber protective sleeve is damaged. Once the rubber protective sleeve of the ball cage is damaged, within three months, the ball cage will be scrapped.

Ball cage accessories are actually inexpensive and have similar durability. The difference lies in the rubber protective sleeve. The service life of the car ball cage universal joint basically depends on the service life of the protective sleeve. The service life of the ball cage sleeve also depends on the process and material, and ultimately will be reflected in the price. Therefore, it is important not to try to buy accessories cheaply, otherwise it will only be you who have to worry in the end.

The ball cage protective covers of automobiles are generally relatively durable. Once damaged, the repaired ball cage protective covers typically have a service life of 2 to 3 years. If the original ball cage is damaged, cracks may appear in about a year. If you buy a non original accessory, it is recommended to inspect the ball cage within three months. Generally, the ball cage can be seen from the top to the bottom by opening the engine cover.