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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.

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Overstock Tires

We have an overstock special happening now on tires. Please call with any questions regarding overstock. Thank you!

MICHELIN® Tires BFGoodrich® Tires Uniroyal® Tires Continental Tires Bridgestone Tires Firestone Tires General Tires Dunlop Tires Fuzion Tires Goodyear Tires Hankook Tires Hercules Tires Pirelli Tires Toyo Tires Kumho Tires

Hogan Tire & Auto - Since 1915

Hogan Tire & Auto was founded in 1915, just as the automobile was born. With thousands of tires in each location, state of the art equipment, and certified tire technicians, we are committed to continue our tradition of providing truly superior products, service, and value. Carrying the latest in name brands like MICHELIN® tires, we're sure to have the perfect set of tires for you. Please don’t hesitate to contact us for any assistance you may need. We’re here to help!

Ed, Tom, and Bill Hogan

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