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Compression Springs Compression Springs

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Inner Diameter
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Wire Diameter
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Total Coils
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Rate
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Material Type
Max. Load
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Max. Deflection
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Solid Height
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*Required Field
Extension Springs Extension Springs

Enter your Outer Diameter and Length Inside Hook
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Length Inside Hook
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Wire Diameter
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Max. Load
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Max. Deflection
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Initial Tension
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Rate
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Material Type
*Required Field
Torsion Springs Torsion Springs

Enter your Outer Diameter and Total Coils
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Inner Diameter
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Total Coils
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Free Position
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Wire Diameter
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Body Length
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Max. Torque
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Max. Deflection
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Rate
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Leg Length
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Material Type
*Required Field
Conical Springs Conical Springs

Enter you Small Outer Diameter, Large Outer Diameter and Free Length
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Small Outer Diameter
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Large Outer Diameter
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Free Length
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Rate
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Total Coils
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Solid Height
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Wire Diameter
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Material Type
*Required Field

Which Type of Spring is Needed for My Application?

Trying to decide which spring type is needed for your specific application can be overwhelming for someone not familiar to the industry. Many people get immediately bogged down in details concerning force, size requirements, material types and tensile strength and lose sight of the bigger picture. Many details that are thought of as necessary or required are not, in fact so stringent. Others have trouble knowing where to begin their search for a suitable spring when there are so many possible options. The first questions to be asked is what type of spring do you need for your application. This article is intended to demystify some of the broad questions concerning the different categories of springs.

 

Compression Springs

 

Compression springs are the most common type of spring. They are used in a variety of applications from medical to aerospace, to toy manufacturing. If you have ever taken apart a retractable ball point pen, you have seen the compression spring that makes it work. Compression springs generate force when they are pushed together, applying that force at the ends which are usually affixed on one side to a moveable piece. There are characteristic gaps between the coils, called pitch, that the spring collapses into. The closer these spaces come together, and therefore the lower the pitch becomes, the more force is generated by the spring.

 

If this is the type of spring you are trying to buy or learn more about, this webpage has many helpful tools to assist you in this process. Our spring creator tool will help you meet force requirements, design a custom spring, or get technical specifics on a sample you already have. The spring finder tool is used to find suitable stock springs that are close dimensionally to values you enter. If you still need guidance in what steps to take from here, this link will take you back to the flow chart.

 
Compression Spring Under DeflectionCompression Spring Under Deflection

Extension Springs

 

Extension springs generate force by pulling the ends of the spring, commonly affixed to hooks, away from each other. The further apart the ends are pulled from one another, the greater the force resisting the pull becomes. Traditionally, there are no gaps between the coils in extension springs, but the types of hooks affixed to the ends of the coils do vary. Our spring creator tool can help you design a compression spring to meet a force or size requirement. It can also be used to obtain technical specifications from physical dimensions take off a sample you already have. Stock extension springs can be purchased online through thespringstore.com to meet your requirements. If your extension spring cannot be found in stock, or if you need a custom quote, our contact page will give you a phone number through which you can request a quote.

 

Extension Spring Under Deflection Extension Spring Under Deflection

Torsion Springs

 

Torsion springs generate force, or torque, by twisting the spring in such a way that follows the natural direction of wind in that torsion spring. Therefore if you have a left hand torsion spring, rotating one leg clockwise which holding the other one steady should generate resistance. Likewise, a right handed torsion spring would be rotated counterclockwise to generate resistance. A defining characteristic of torsion springs are the two lets protruding from the body of stacked coils. These legs can vary widely in size and are usually affixed to two surfaces, one mobile, one stationary.

 

The spring creator tool can be used to determine force, positioning, travel and many other technical specifications regarding torsion springs. Once designed, some custom torsion springs can be quoted and ordered through this tool. Stock torsion springs can also be bought through thespringstore.com.

 

Torsion Spring Under DeflectionTorsion Spring Under Deflection