Extension Springs

“A helical shaped closely coiled wire that offers resistance when extended, and gets back to its original shape is called an extension spring.”

Extension springs are helical wound springs that are so closely coiled together to create initial tension in the coils. This initial tension creates resistance against the force applied to its ends for extension. The initial tension helps determine how closely and tightly the coils are attached. An extension spring has end coils, hoops, or loops that are usually present at both ends to help in the extension of the spring when any other object is attached to it.

These springs are good at absorbing and storing energy and also to resist a pulling force. Each end of the spring is attached to any component and when a force is applied to move these components apart, the tensile strength of this spring brings them back to its original point. The purpose of an extension spring is actually to provide an extended force when a spring is pulled apart from its original position. A wide range of extension springs are used in everyday life for different purposes such as hardware, washing machines, doors, toys, aircraft landing gears, hoods of heavy trucks, and many more.

Key Parameters for Designing Extension Spring

There are some key parameters and specifications that are needed to be considered before designing extension springs. These are crucial for designing a resilient and effective extension spring. These are:

1. Outside and inside diameter of spring
2. Wire diameter
3. The type of material that is used
4. Initial tension of the spring
5. Load that a certain length can get hold of
6. Rate pounds per inch of extension
7. The length that is installed and maximum extended length in application
8. Type of spring ends
9. Position of ends relative to each other
10. Gap opening in hooks

For further information about Compression Spring, please contact sales for help.
The majority of the information above is excerpted from IQSDirectory.com.