shock absorber

5 week ago

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5 month

Product details

Automobile shock absorbers (also known as shock absorbers or shock absorbers) are one of the core components of the suspension system, mainly used to suppress the rebound impact and vibration from the road surface after spring absorption, ensuring the stability and comfort of vehicle driving.

1、 The core function of shock absorbers

Absorb vibrations

By using hydraulic or pneumatic damping, the elastic potential energy of the spring is converted into thermal energy, reducing vehicle bumps.

Keep the tires on the ground

Prevent the wheels from jumping off the ground due to uneven road surfaces, improve grip and handling.

Extend suspension life

Reduce the wear and tear of mechanical components caused by vibration.

2、 Types of shock absorbers

hydraulic shock absorber

Double tube type: commonly seen in economy cars, divided into inner tube (working cylinder) and outer tube (oil storage cylinder), with low cost but poor heat dissipation.

Single tube type: commonly used in high-performance cars, with a simple structure and good heat dissipation, but sensitive to installation angles.

Pneumatic shock absorber (inflatable)

Internally filled with high-pressure nitrogen to prevent oil emulsification, providing more stable performance and suitable for high-performance or off-road vehicles.

Electronic shock absorber

Real time adjustment of damping force through sensors (such as electromagnetic fluid technology), representative models: Audi electromagnetic suspension, Cadillac MRC.

Adaptive shock absorber

Damping can be automatically adjusted according to driving mode (Comfort/Sport), such as BMW's EDC system.

3、 Signs of shock absorber damage

Abnormal noise: making a "creaking" sound or metal impact sound when passing through a pit.

Oil leakage: There are oil stains on the shock absorber cylinder (normally no oil leakage).

Vehicle body shaking: severe nodding after braking, increased tilt during cornering.

Uneven tire wear: Unstable tire contact due to shock absorption failure.

Loose driving sensation: The overall integrity of the chassis has decreased, and the vibration transmission on bumpy roads is direct.

4、 Suggestions for maintenance and replacement of shock absorbers

Regular inspection: Check for oil leakage and rubber lining aging every 20000 kilometers or during maintenance.

Replacement cycle: Usually 60000 to 100000 kilometers (depending on road conditions and driving habits), it is recommended to replace in pairs (coaxial on both sides).

Matching principle: When modifying, it is necessary to consider the matching of spring hardness and shock absorber damping to avoid performance imbalance.

Brand selection:

Original factory accessories: Sachs, KYB, Bilstein, etc.

Modified brands: Ö hlins (high-performance), KW (articulated suspension), Tein (commonly used in Japanese cars).

5、 Frequently Asked Questions and Answers

Q: Can the shock absorber still be opened if it's broken?

A: Short term emergency response is possible, but long-term use can accelerate chassis wear and affect safety.

Q: Can modifying shock absorbers improve handling?

A: Sure, but professional tuning is required, otherwise comfort may be sacrificed.

Q: What is the relationship between shock absorbers and springs?

A: The spring supports the weight of the vehicle, while the shock absorber controls the movement of the spring, and the two need to work together.

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