Shock absorber or damper is a mechanical or hydraulic device used to, as the name suggests, absorb shocks when the truck or automobile vehicle is running on the road due to sudden break or speed breaker or potholes. Shock absorber achieves the shock absorbing functionality by converting the kinetic energy generated by the shock into typically heat energy which is then dissipated. They also have another important purpose which is generally not noticed by the person driving the vehicle or the occupants of the vehicle i.e To keep the tyre of the truck or vehicle stick to the ground.
Functions of a basic shock absorbers in the truck are:
- Absorbing shocks thereby maintaining the comfort and smoothness of the ride.
- Ensuring stability of the vehicle by holding the tyres to the road.
- Ensuring Safety by reducing the braking distance from the time the driver presses the brake to the time vehicle stops. By ensuring that the tyres are attached to the road, the braking distance is reduced.
Shock absorber are generally of two types or a combination of both:
- Strut – Generally used in the front side of a truck or automobile vehicle and it is lightweight and compact due to less space available in the front side.
- Shock absorber – Generally used in the rear side of the vehicle. Like the T3628 chassis shock absorber 3118
- Strut/ Spring and shock absorber – Both strut/ spring and the shock absorber. Like the T1256 LIFT AXEL SHOCK ABSORBER for TATA and Ashok Leyland 3118
There are generally three types of shock absorbers used in Indian commercial vehicle trucks like TATA 3118, TATA 4018, Leyland 3518:
- Cabin Shock Absorbers – These shock absorbers are used for supporting the cabin of the driver and ensuring greater stability, comfort and safety.
- Chassis shock absorbers – This is the conventional telescopic type shock absorber which is attached to the chassis of the vehicle and it absorbs the bulk of the shocks
- Axle Shock absorber – This is the part of the primary suspension and absorbs the majority of the shock. It is attached to the axle of the vehicle. As you can see from the photo below, it has both strut/ spring and the shock absorber inside the strut or spring.
|T1256||LIFT AXEL SHOCK ABSORBER 3118|
|T1533||CABIN SHOCK ABSORBER TATA 4018|
|T3461||cabin shock absorber 12” 4018|
|T3972||Cabin Shock Absorber L/L 3518 horse cabin Rear Side|
|T3628||chassis shock absorber 3118|
|T1238||SHOCK ABSORBER BOLT 407|
|T1239||SHOCK ABSORBER BOLT 709|
|T1692||BUSH SHOCKER COMMANDER D.I|