Car Suspension & Its Parts
A car suspension's job is meant for maximizing friction that exists between the road surface and the tires, providing comfort to passengers and ensuring that steering stability is provided. There wouldn't be any need for suspensions if roads were pristinely flat and devoid of irregularities.
A car's suspension is actually a component of the chassis, which encompasses all the major systems that are located underneath the body of the car. These include:
- The suspension system - This is a setup meant to support weight, dampen and absorb shock, while also maintaining tire contact.
- The steering system - This is a mechanism that helps the driver to direct and guide the vehicle.
- Tires and wheels - These are components that ensure that vehicle motion is possible by grip and/or friction with the road.
A summary of this is that the suspension is a major system in every vehicle.
For springing systems, there are basically four designs, with only one now used extensively in the modern era:
Coil springs - This type of spring is very common and essentially is a heavy-duty torsion bar. This is also coiled around an axis. These springs normally compress and expand so as to absorb any motion from the wheels.
Torsion bars - These make use of the twisting properties peculiar to steel bars to ensure that a coil-spring-like performance is provided. Carmakers in Europe, as well as Packard and Chrysler in America, made use of this system extensively during the 1950s and 1960s.
Air springs - These consist of a chamber of air that is positioned between the car's body and its wheels, with the air (and its compressive qualities) used to absorb vibrations from the wheel. This concept is more than one hundred years old and could be seen on buggies. In this era, air springs were created from leather diaphragms that were air-filled - much like bellows. In the 1930s, however, molded-rubber air springs replaced them.
With the absence of a dampening structure, the springs of a car will extend and pour out the energy it had absorbed from a bump at an unstable rate. The spring will also continue to bounce until all the energy initially put into it has been used up. A suspension that is solely built on springs would result in a very bouncy ride and an uncontrollable car - that is, considering the terrain.
This is where the shock absorber enters the mix. The shock absorber controls spring motion that is unwanted through a process called Dampening. These absorbers reduce and slow down the level of vibratory motions by changing the kinetic energy - gotten from suspension movement - into heat energy capable of being dissipated via hydraulic fluid. Shock absorbers are basically oil pumps that are placed between wheels and frame of cars.
When the wheels of the car encounter a bump on the road and result in the spring coiling and uncoiling, the spring's energy is moved to the shock absorber via the upper mount, down the piston rod, and to the piston. Holes perforate the piston, allowing fluid to pass through as the piston goes up and down inside the pressure tube. Due to the fact that the holes are tiny, only a limited amount of fluid will be able to pass through (under great pressure). This will slow down the piston, ultimately also slowing down the spring.
Shock absorbers usually work in two different cycles - the extension cycle and compression cycle. The compression cycle happens when the piston is moving downward, while also compressing the hydraulic fluid inside the chamber. The extension cycle happens when the piston moves to the uppermost part of the pressure tube, while also compressing the hydraulic fluid in the chamber directly above the piston. The typical car or a light truck will possess more resistance in its extension cycle than during its compression cycle. To this effect, the extension cycle controls the sprung weight while compression controls the unsprung weight.
The strut is a common dampening structure. Basically, it is a shock absorber that is mounted within a coil spring. Struts normally perform two jobs: They ensure that a dampening function similar to shock absorbers is provided and they give the vehicle suspension adequate structural support. This means that struts deliver a little more than its shock absorber counterpart. However, they don't support the weight of vehicles - they're only in control of the speed by which weight is transferred and actually not the weight.
Due to the fact that struts and shock absorbers have a lot to do as regards the handling of cars, they can actually be regarded as critical safety features. Worn out struts and shock absorbers can lead to excessive vehicle-weight transfer from front to back and side to side. This will then reduce the ability of the tire to grip the road. It will also affect the braking and handling performance.
These are also referred to as anti-roll bars. They are utilized alongside struts and shock absorbers to ensure that the moving automobile is handed additional stability. The anti-sway bar is a metallic rod that covers the entirety of the axle and also joins all the sides of the suspension.
When the suspension of one wheel is moving up and down, the anti-sway bar will transfer movement to the other wheel. This ensures that vehicle sway is reduced, also providing for a better-leveled ride. Due to this, most of the cars today come with anti-sway bars as a standard equipment. However, if there's an absence of this anti-sway bar, kits make it very easy to install them at any time.
Dependent Front Suspensions
Dependent front suspensions usually possess a strong front axle connecting the front wheels. This basically looks like a bar beneath the front end of the car, set in place by shock absorbers and leaf springs. Dependent front suspensions are very common with trucks, and they haven't been used for mainstream cars in years.
Independent Front Suspensions
The front wheels in this setup are allowed to move freely. The MacPherson strut is the most common of the front suspension systems. It was developed in 1947 by Earle S. MacPherson. This suspension system is very popular among cars that have a European origin.
The MacPherson strut joins a coil spring and shock absorber into one unit. This ensures that the suspension system becomes more compact and lighter, meaning it can be used in front-wheel drive vehicles.
Independent Rear Suspensions
If the rear and front suspensions are independent, then the whole wheels are sprung and mounted individually. This results in the thing car advertisements refer to as "the four-wheel independent suspension." Any suspension capable of being used at the front end of the car can be able to be used at the rear. Also, types of front independent suspension systems can be found firmly located on the back axles. It should also be noted that at the back of the vehicle, the steering rack - an assembly that contains the pinion gear wheel while also enabling the wheels to turn - is absent. What this means is that rear independent suspensions have the ability to become simplified versions of the front ones, with the basic principles also remaining the same.
Suspension parts are very important in the seamless workings of a car. When they have issues, the car will have issues. Consequently, it is important that the suspension parts of your car are always in top notch. If they aren't at the moment, you can replace them. Just Jeep can help you in this sense. At Just Jeep, we're specialists in the Jeep, Chrysler and Dodge Auto Dismantling world. We service owners of Jeep, Dodge and Chrysler cars in Melbourne and the whole of Australia. We solve any of your Jeep, Dodge & Chrysler spare part needs using our high-tech inventory system to ensure that accurate parts interpreting services are always provided. All types of Jeep, Dodge and Chrysler spare parts are available in stock. You can go through our spare part availability page to find out what you're looking for.
As regards suspension parts, we offer a wide range of them which include:
- Camber Arm
- Control arm.
- Axel Beam
- Lateral link.
- Idler Arm.
- Pan-hard rod.
- Pitman's arm.
- Rack end.
- Shock absorber.
- Power steering assembly and component.
- Rubber spring.
- Air spring.
- Coil spring.
- Ball joint.
- Leaf and parabolic leaf spring.
- Stabilizer bars & link.
- Spiral spring.
- Steering arm.
- Steering box.
- Steering rack (a type of steering gear; also see rack, pinion & recirculating ball).
- Steering wheel (driving wheel).
- Steering Shaft.
- Steering column assembly.
- Suspension link and bolt.
- Sway bar link.
- Stub Axle.
- Tie bar.
- Tie rod.
- Tie rod end.
- Track bar.
- Toe link
- Trailing Arm
We also supply a huge array of items anywhere in Australia. Our team possesses more than 30 years of experience in the field of auto-wrecking to navigate any spare parts problem you might have. The specialist knowledge we have in this industry ensures that we're always at the forefront as regards this business, making us the best place for all your Jeep, Dodge and Chrysler needs and requirements.
To this effect, here are some of the vehicles (make and model that we have spare parts in stock).
Jeep Cherokee (including the Cherokee Wagon XJ 4WD 4/94 - 9/01, Cherokee KJ Limited / Sport / Renegade Wagon 4X4 9/01 - 1/08 among others).
Jeep Patriot (including Patriot MK Wagon 4X2 4X4 1/07, Patriot MK Limited / Blackhawk Wagon 4X2 4X4 1/07 1/07, Patriot MK Sport / 70th Anniversary Wagon 4X2 4X4 among others).
The Dodge Journey JC Wagon 9/08, Dodge Nitro 7/07, Dodge PM Calibre 5DR Hatch 7/06.
The Chrysler Voyager Wagon (including Voyager Wagon 3/97 - 4/01, Voyager Wagon 5/01 - 10/04, Voyager Wagon RG 11/04-7/10 among others).
To get an extensive list of the Jeep, Dodge and Chrysler spare parts we have, just click here.