Hebei Hankai 40x52x7 oil seal
Working together to absorb impacts and help keep the tires in contact with the road, coil springs and shocks/struts are key parts of a vehicle’s ride control system. Made of wound metal, coil springs are designed support the vehicle’s weight. They compress and absorb road impacts, allowing the frame and body of the vehicle to experience minimal disturbances when riding over bumps such as railroad tracks or dips such as potholes. Coil springs also help prevent the vehicle from bottoming out when loaded or during adverse driving conditions by working to maintain optimal ride height as determined by the manufacturer.
Springs are, of course, an extraordinarily simple mechanism based on an even simpler premise. They either resist stretching or compression based on the materials they are made from and how tightly they are wound. In and of themselves, coiling springs require no maintenance. You don’t have to keep them lubricated or cleaned, and when they are made with special coatings for added rust resistance, they can last an extremely long time.