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Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Inner Diameter:

to

inches mm

Free Length:

to

inches mm

Wire Diameter:

to

inches mm

Total Coils:

to

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in N/mm

Info! Please fill in one or more fields to narrow down your search.

Max. Load: ? The maximum amount of force or load you can place on this spring. If you put more force than this you will distort or fatigue the spring.

to

lbs N

Max. Deflection (Max. Travel):

to

inches mm

Solid Height:

to

inches mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Length Inside Hook:

to

inches mm

Wire Diameter:

to

inches mm

Info! Please fill in one or more fields to narrow down your search.

Max. Load: ? The maximum amount of force or load you can place on this spring. If you put more force than this you will distort or fatigue the spring.

to

lbs N

Max. Deflection (Max. Travel):

to

inches mm

Initial Tension: ? The force required to seperate the coils of an extension spring before the spring will extend.

to

lbs N

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in N/mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Outer Diameter:

to

inches mm

Inner Diameter:

to

inches mm

Free Position or Leg Position in degrees: ? Free Position or Leg Position in degrees

degrees

Total Coils:

to

Wire Diameter:

to

inches mm

Body Length:

to

inches mm

Info! Please fill in one or more fields to narrow down your search.

Max. Torque: ? The amount of force applied to a torsion spring to radially move the springs leg a certain amount of degrees.

to

lbs N

Max. Deflection (Degrees of travel):

to

degrees

Rate: ? Torsion spring rate is the amount of radial force required to move the spring 360 degrees of distance. Divide the spring rate by 360 degrees to get the rate per degree

to

in-lbs./deg. N-mm/deg.

Leg Length: ? Both legs are equal in length

to

inches mm

* Required Field

Attention! Input results shown will be +/- 10% from middle value. Hint: The closer your min and max inputs are, the more accurate your results will be!

Small Outer Diameter:

to

inches mm

Large Outer Diameter:

to

inches mm

Free Length:

to

inches mm

Info! Please fill in one or more fields to narrow down your search.

Rate: ? Spring rate or spring constant: The amout of force required to move the spring 1 inch of distance or in millimeters the amount of force required to move the spring 1 millimeter of distance.

to

lbs/in N/mm

Total Coils:

to

Solid Height:

to

inches mm

Wire Diameter:

to

inches mm

Understanding Tapered Spring Dimensions

Conical or tapered springs are compression springs coiled in increasing or decreasing outer diameters. This causes it to have a shape or form similar to that of a cone or tapered one. These springs tend to reduce solid height (the length of the spring when compressed) and provide stability.

Tapered Springs

The shape of these tapered springs also means that there are certain dimensions and measurements that will be significantly different from those of a normal compression spring. That is why we have provided the following list and descriptions of a tapered spring's dimension.

Tapered

The diagonal shape of a conical spring’s sides.

tapered spring shape

tapered spring diameter

Wire Diameter (WD)
  • The thickness of the round wire which the compression spring is made of.
    • Large Outer Diameter
    • The thickness of the larger coil at one end of the compression spring’s body.
      • Small Outer Diameter
      • The thickness of the smaller coil at the other end of the compression spring’s body.
        • Inner Diameter (ID)
        • The width of the inside of the smallest coil. Calculate by subtracting two wire diameters from the small outer diameter.
          • Mean Diameter (MD)
          • The medium or intermediate diameter that is located right in the middle of inner diameter and outer diameter. Calculated by subtracting one wire diameter from the outer diameter or by adding one wire diameter to the inner diameter.
Free Length (FL)
  • The free, unloaded length of a tapered spring.
    • Total Coils (T/C)
    • The total amount of coils including open and closed coils.
      • Active Coils (A/C)
      • The open/active coils in your cone spring. You may calculate the active coils by subtracting the closed coils from the total coils.
        • Solid Height (LH)
        • The length/height of your conical spring when it is fully compressed and all of the coils are touching or have fully telescoped.
          • Pitch (P)
          • The distance between your spring’s coils.

tapered spring coils

Rise Angle of Coils
  • The free, unloaded length of a tapered spring.
    • Index (I)
    • The proportional ratio between your spring’s wire diameter and mean diameter (measured from both the small and large outer diameters). It specifies the tightness of your compression spring’s coils and the level of manufacturing difficulty.
      • Travel (F)
      • The motion in which a conical spring is compressed. The distance traveled is the difference between the free length and the loaded height.
        • Load (P)
        • The force being applied on the spring in order for it to travel.

        As you can see some of these dimensions are similar to those of a compression spring while others need to be taken into consideration in a different manner than you would a regular compression spring due to the shape that the tapered spring embodies. If you have any questions or doubts when it comes to measuring or selecting the perfect conical spring to purchase, you can contact us at: (951) 276-2777