. . . .

Automotive Q & A

Shock Absorbers

Question: How shock absorbers function?

Answer: Shock absorbers are an integral part of a vehicle’s suspension. A shock absorber is designed to absorb or dampen the compression and rebound of the springs and suspension. They control the unwanted and excess spring motion. Shock absorbers keep your tires in contact with the road at all times. Before going any further, let’s discuss some key terms that will help us understand how shock absorbers work. Back in elementary school we learned about energy, more specifically, we learned about potential and kinetic energy. We also learned about the Law of Conservation of Energy. The Law of Conservation of Energy states that energy cannot be created or destroyed, it can only change forms. Potential energy is stored energy and kinetic energy is energy in motion. Now, let’s get back to shock absorbers. When you hit any bump or dip in a road, your vehicle’s suspension and springs move so the tire can stay in contact with the road and absorb the energy. The shock absorbers dampen the movement of the springs by converting the spring’s kinetic energy into thermal (heat) energy. This thermal energy is then degenerated in hydraulic fluid. Shock absorbers are an oil-filled cylinder. When your vehicle’s suspension moves, a piston moves up and down through the oil-filled cylinder. The up-and-down movement of the piston forces small amounts of fluid through orifices (tiny holes) in the piston head. Since only a small amount of fluid is forced out, this slows down the suspension’s movement and dampens the compression and rebound of the springs. Shock absorbers are also velocity-sensitive. This means that the faster the springs are moving, the more resistance the shock absorber provides.

Click HERE to Shop For Service

Tire Brands

More Brands »

K & W Tire

K & W Tire is a pillar of communities in Pennsylvania and Vermont. K & W Tire is a leader in offering name brand tires, auto repair and brake services for customers located in and around the Barre, VT, White River Junction, VT, Lancaster, PA, Williamsport, PA, and Gettysburg, PA area. Our goal is to focus on customer service. It is the foundation of our business. K & W Tire employs a well-trained staff specializing in the sale and installation of passenger car, performance and light truck or SUV tires. Complete under-car services, such as oil changes, brake repairs, and wheel alignments are readily available at competitive prices. Take this opportunity to browse K & W Tire website or call us for personalized service.