search
Loading...
Compression Springs Compression Springs

Enter your Outside Diameter and Free Length
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outside Diameter
to
Inside Diameter
to
Free Length
to
Wire Diameter
to
Total Coils
to
Rate
to
Material Type
Max. Load
to
Max. Deflection
to
Solid Height
to
*Required Field
Extension Springs Extension Springs

Enter your Outside Diameter and Length Inside Hook
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outside Diameter
to
Length Inside Hook
to
Wire Diameter
to
Max. Load
to
Max. Deflection
to
Initial Tension
to
Rate
to
Material Type
*Required Field
Torsion Springs Torsion Springs

Enter your Outside Diameter and Total Coils
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Outside Diameter
to
Inside Diameter
to
Total Coils
to
Free Position
to
Wire Diameter
to
Body Length
to
Max. Torque
to
Max. Deflection
to
Rate
to
Leg Length
to
Material Type
*Required Field
Conical Springs Conical Springs

Enter you Small Outside Diameter, Large Outside Diameter and Free Length
Hint: For larger search results, enter a bigger range of Min and Max Inputs

Small Outside Diameter
to
Large Outside Diameter
to
Free Length
to
Rate
to
Total Coils
to
Solid Height
to
Wire Diameter
to
Material Type
*Required Field

What To Consider When Looking For Stock Extension Springs

Extension springs are meant to be extended when a load is placed. Their coils will return to having no pitch when the load is released. Stock extension springs are available in different material types and have different kinds of hooks. It is important to take all of this into consideration when deciding what extension spring to buy. Take a look at some important things to consider when buying extension springs.

 

Dimensions

Knowing the dimensions that your spring needs to have can make your spring search easier. The more information you have, the easier it will be to narrow down your search. It would be ideal that you at least know the outer diameter of your spring and the length inside hooks.

 

Consider Extension Spring DimensionsConsider Extension Spring Dimensions

Hook Types

The most common types of hooks are machine hooks and cross-over hooks. However, you may also opt for no hooks. Having no hooks allows you to attach two bolts to each side of your extension spring, eliminating the chance of the spring hooks breaking or bending.

Machine HooksMachine Hooks
Cross Over HooksCross Over Hooks

 

Material Type

 

The most common material types for stock springs are Music Wire and Stainless Steel 302. When deciding what material type to choose, it is necessary to take into consideration the application and environment (humid, dry, extreme temperatures, etc.) in which your spring will be working. Considering what industry of the gadget/product your spring will be used in can help you analyze whether you need your spring to be resistant to humidity (in which case you need stainless steel) or to be able to withstand high temperatures, etc.

 

Initial Tension

 

Initial tension is the energy already gathered in the spring’s coils. Such energy keeps the coils together. It is a force that is additional to the one determined by the spring rate. The rate increments on top of the initial tension so that you would just add the initial tension to the load calculated with rate to verify if your extension spring works under the load you need it to.

 

Consider Extension Spring Initial TensionConsider Extension Spring Initial Tension

 

If you have the basic dimensions, an overall understanding of your spring’s working environment, and the load you require, it will be easy to choose the right extension spring. However, we understand sometimes you may have many options or not enough. In this case, you may opt for buying a few sample springs and testing them to see which bests matches your needs. If you need further help or assistance finding the right stock extension spring, please don't hesitate to contact us at (951)276-2777.