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How Car Suspension Works?

  • Author :
  • TATA AIG Team
  • Published on :
  • 06/02/2023

Have you ever wondered why you can sit comfortably in your four-wheeler for extended distances? You might be thinking about seats; four-wheeler seats have a part, but less than your vehicle's suspension. Yes, the mesh of springs and shock absorbers under the car keeps your ride smooth.

However, before letting you know the ins and outs of a car suspension, let us put some light on the vitality of motor insurance in India. It protects the owner against financial losses caused by unforeseeable occurrences like accidents, natural disasters, and robbery. The insurance company pays for damages to the covered vehicle, a third party, or the policyholder.

Ins and Outs of a Car Suspension

The suspension of your four-wheeler absorbs the impact or bumps before they reach the frame, providing you with a comfortable ride. Furthermore, modern suspension systems in automobiles can react to the kind of road and auto-adjust themselves to make the rough road a piece of the cake.

Insurance for cars is required for all motorists in India. It is required by law in practically every country on the planet. The 1988 Motor Vehicles Act makes third-party car insurance obligatory in India. As a result, to financially and legally protect yourself from such occurrences, you may consider purchasing car insurance coverage.

At Tata AIG, you may buy car insurance at affordable prices and have the option of customising your policy. Also, with the easy and no-fuss options of car insurance renewal online, you may not worry about claiming insurance. You can easily do it from the convenience of your own couch. So, why wait? Contact us now to take this alliance forward.

Now, continue reading to learn everything you need to know about car suspension.

Car Suspension System: What Exactly Is It? How Does It Work?

Any vehicle's suspension system comprises several components that work together to maximise the friction between the road surface and the tyres. It is dedicated to providing the smoothest ride possible while giving the driver total control over the steering wheels. It improves passenger comfort while also keeping everyone on the road safe. The suspension system in automobiles has improved with new technology to deliver optimum comfort with the least effort.

Road imperfections necessitate a smooth suspension system in automobiles. Even newly surfaced highways include minor bumps and irregularities that can impair vehicle handling. And, let's face it, no one wants their automobile to lose contact with the road! A little bump in the road might cause the wheel to move perpendicularly up and down. You wouldn’t be able to land safely on the road without a suspension system.

Car Suspension System: Why Is It So Important?

Mechanics and engineers emphasise the need to keep your car's suspension system maintained and in excellent working order for a variety of reasons. If you are wondering why the car's suspension system is getting so much attention, consider the following points!

Here are some of the reasons why the car's suspension system is so important:

  • They are in charge of suspension and spring movement.
  • It aids in the prevention of early tyre wear.
  • Keeps the dynamic wheel alignment.
  • Reduces the influence on other vehicle parts by absorbing shock.
  • Ensures smooth and constant vehicle handling.
  • Maintains the tyres in touch with the road.
  • Avoids brake wear.
  • It controls vehicle sway, bound, acceleration, and drive.

Car Suspension Components Explained!

Before we go into the many types of car suspensions, you must take a look at the few parts that are nearly the same across every suspension system. They are as follows:

  • Shock Absorber or Damper: Its purpose is to absorb bump and road shocks. It accomplishes this by absorbing and converting the kinetic energy transferred directly from the car’s wheel to the frame. This is why the dampers are loaded with oil to keep them cool while continually absorbing road shocks. A damper reduces vibration and keeps you from bouncing in the four-wheeler.

  • Knuckle Arm: Also referred to as the steering arm, the suspension is connected to the wheel via the knuckle arm. A knuckle arm is an essential component of the suspension system that serves as a point of contact between the suspension and the car’s wheel.

  • Ball Joint: Because several rotating forces are at work as a car rotates, a ball joint acts as a rotation axis to help smooth the operation.

  • Springs or Coils: The coils absorb shocks and compress in proportion to the vehicle load. Dampers and coils are commonly used in tandem to reduce body roll or prevent the four-wheeler from falling during a high-speed turn.

Car Suspension: Types Explained!

Suspension systems change depending on vehicle body type and, in certain cases, even brand. Listed below are the eight most typically encountered four-wheeler suspensions:

  • Rigid Axle Suspension

Also referred to as beam axle suspension, the rigid axle suspension consists of a perpendicular to the axle of the vehicle connected to the car wheels through a wheel spindle and may be paired with coiled springs or leaf springs. A rigid axle is incredibly strong and can withstand a lot of weight. Unlike most present-day suspensions, it has a fairly basic configuration, making it straightforward to replace and repair.

Because of its load-carrying capability and improved articulation, the rigid axle suspension and its updated versions are employed in offroaders and heavy-duty vehicles. Nonetheless, these suspensions are not designed for fast speeds and abrupt bends. Further, they might roll the car over if subjected to heavy cornering.

  • Multi-Link Suspension

This form of suspension, as the name implies, has numerous links connecting to the four-wheeler chassis and wheel assembly. Because these many links can respond to any force applied to them, they are also employed in off-road vehicles. On the rear tyres, multi-link suspension systems are utilised to provide a highly pleasant ride with exceptional grip.

This suspension will keep your wheels firmly planted on the ground in the event of a violent turn. Because of their complicated design, these suspensions are usually found in high-end vehicles, and any damage leads to a time-consuming and costly repair.

  • Macpherson Suspension

American automotive engineer Earle Macpherson invented the Macpherson strut or suspension. It is one of the most extensively utilised suspension systems in automobiles. The Macpherson strut is extensively used because of its simple form and ability to give comfort and control while taking up minimal space. The incorporation of a steering pivot in the suspension itself marked it distinctive, thus its application in the front suspension.

A damper, a track control arm, and a steering knuckle with 2 mounts make up the suspension. The upper knuckle mount connects to the damper, while the lower one connects to the control arm, allowing the wheel and chassis to move in tandem. The suspension may be adjusted to suit many cars and driving situations.

  • Rigid Suspension - Leaf Spring

The leaf spring rigid suspension is built similarly to the beam axle suspension, except instead of coil springs, it uses leaf springs as dampers. Leaf springs are basically long bundles of spring material, primarily steel, that bend in response to axle pressure.

Leaf springs can withstand significant weight without breaking a sweat, which makes them excellent for usage in commercial vehicles. They are not intended for comfort, high speed, or fast cornering and will cause the suspension to change vehicle handling if used in those situations.

  • Independent Suspension

An independent suspension system is installed on each individual wheel. This implies that bumps felt by one wheel have no effect on the others. As a result, the ride and handling are quite pleasant. This technology is used in suspensions such as the Macpherson Strut, Multi-link Suspension, and Double Wishbone Suspension, among others.

  • Trailing Arm Suspension

Well, the trailing arm suspension is made up of a steel arm with one end pivoted to the chassis of the vehicle and the other end pivoted to the car's rear axle, as well as a dampener.

A trailing suspension, which is often found on the back of a vehicle, can't be utilised for heavy-duty vehicles due to the risk of the arm becoming bent, which can impair handling. The rear wheel of a motorbike is the most typical example of a Trailing Arm Suspension.

  • Air Suspension

Often known as air springs, air suspension is a type of suspension that employs air bellows instead of traditional dampers and coils. These air bellows may be filled with air and deflated, leveraging an air compressor to modify the vehicle's ride height.

Air suspension is stated to be one of the most load-bearing and comfortable suspensions, which is why it is utilised on the majority of high-end luxury and sports cars. They are also used on many vehicles and buses because of their weight-carrying capabilities. Air suspensions are incredibly adaptable, and when combined with an onboard computer, they can adjust to any height, weight, or passenger need.

  • Double Wishbone Suspension

Well, the Double Wishbone Suspension is basically one of the most advanced suspensions ever created, as well as the most effective in smoothing out road bumps. The double wishbone suspension comprises two A-shaped arms. These arms look like wishbones, hence the name.

This configuration is only available on independent suspension vehicles and provides superior control and comfort even at high speeds and during rapid corners. This particular suspension and its updated versions are used in luxury automobiles, race cars, and sports cars due to its stability, agility, and comfort.


Suspension systems are undeniably important components of four-wheelers. They are a collection of mechanical springs, connections, and dampers that attach the car wheels directly to the chassis. Their traditional function is to assist in the management of the vehicle's braking and handling for safety as well as to keep passengers comfortable from vibrations, bumps, and several other elements.

So, this was an in-depth discussion of the car's suspension system as well as its parts and types. Hopefully, all the topics in the post will be useful to you in caring for your beloved four-wheeler. Also, do not forget to buy car insurance from Tata AIG, as it will help keep your prized possession protected in times of legal and financial need.

Drive Safe, Stay Safe!

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