It is not necessary to know everything about them, but it is helpful to have a basic understanding of the two springs. For example, it is necessary to know what an extension spring is versus what a compression spring is and what they do and what purpose they serve.
Attached to both ends is a variety of extensions to other components at both ends and as they move apart, the spring draws them together. Energy is then absorbed and stored to create resistance. The original tension is what sets the coil's tightness and the tension is able to manipulate the load requirements as well as the coil-connected components weight.
They are usually made with eyes and hooks which are attached to the component pieces and may have center loops, extended twist loops, hooks, threaded inserts or tear-dropped shape ends, From the coil's body, these ends have variance in distance. Depending on the equipment needs, there can be different distances custom-designed. For situations where weight could be overloading, there draw-bar variety of springs is a perfect solution because of the built-in stopping point.
Compressionsprings are the most common used spring and are an open-coil designed that counterbalance compression. They are usually either fitted in a hole or placed over a rod and when weight is placed against it, it becomes shorter and forces back against the load, returning to it's original form. This type of resistance is thought to be the most energy efficient storage device.
The compression spring with a straight metal coils is the most common with a diameter and the length is teh same as that of the component. There are also other shapes such as the barrel and conical types in a convex shape and the concave hourglass shape as well.
These springs are found in the manufacturing of cars uses extensions in the interior and exterior both as well as garage door assemblies, trampolines and vise-grip pliers. With the wide variety of sizes of these springs, they are also found in something as small as a carburetors or as large as farm equipment and even in medical devices, toys and washing machines. From the brakes in off-road machinery to the furniture on your patio, there are uses of these springs.
Regardless what the end purpose of the compression or extension spring, the best quality is a must so that the quality of the end product is durable, reliable and strong enough to stand the use it may applications.