
Torsion and Flat Coil Springs
With torsion springs the load is applied in the direction of coiling. The spring wire is therefore only subjected to bending stress. For the transfer of force and torque the tangential or radial ends have different shapes.
On account of the many different designs, these springs can only be manufactured according to a drawing or a pattern. Flat coil springs are manufactured from spring steel strip. They are coil-shaped and wound in a single plane. Flat coil springs with a gap between the coils, mainly used as reset or measuring springs, are subjected to load concentrically and have a virtually linear torque characteristic.
Flat coil springs without a gap between the coils (power springs and constant-force springs) are mainly integrated into housings and held in the preloaded state at the outside diameter with a ring or strip so that they are easier to fit. (Examples of use: T-bar-lifts, safety belts and devices to relieve tension and weight).

Corona, Calif. (August 31, 2010) - Winning seems to be the word with many Eibach Springs sponsored drivers in the past week as numerous press releases and pictures have filtered into the offices boasting wins!
...
...

THE FIRST STEP IN SUSPENSION PERFORMANCE
Eibach PRO-KIT is the perfect answer for most frequently-driven street cars. It's our legendary spring system that dramatically improves both a vehicle's performance and appearance.
...
...

Corona, Calif. (August 24, 2010) - On August 12, California brothers Tanner and Kody Swanson drove their TK Motorsports Silver Crown steeds to a history-in-the-making finish.
...
...

THE FIRST STEP IN SUSPENSION PERFORMANCE
Eibach PRO-KIT is the perfect answer for most frequently-driven street cars. It's our legendary spring system that dramatically improves both a vehicle's performance and appearance.
...
...