Pitch of Coil Spring Calculator

✖Free length of spring is defined as the axial length of an unloaded helical compression spring. In this case, no external force acts on the spring.ⓘ Free Length of Spring [L_f]			+10% -10%
✖Total Number of Coils in spring is the total number of turns made by wire along its length.ⓘ Total Number of Coils [N_t]			+10% -10%

✖Pitch of coil spring is defined as the axial distance between adjacent coils in uncompressed state of spring.ⓘ Pitch of Coil Spring [p]

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Formula

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Pitch of Coil Spring

Formula

`"p" = "L"_{"f"}/("N"_{"t"}-1)`

Example

`"18.18182mm"="200mm"/("12"-1)`

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Pitch of Coil Spring Solution

STEP 0: Pre-Calculation Summary

Formula Used

Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1)
p = L_f/(N_t-1)
This formula uses 3 Variables

Variables Used

Pitch of Coil Spring - (Measured in Meter) - Pitch of coil spring is defined as the axial distance between adjacent coils in uncompressed state of spring.
Free Length of Spring - (Measured in Meter) - Free length of spring is defined as the axial length of an unloaded helical compression spring. In this case, no external force acts on the spring.
Total Number of Coils - Total Number of Coils in spring is the total number of turns made by wire along its length.

STEP 1: Convert Input(s) to Base Unit

Free Length of Spring: 200 Millimeter --> 0.2 Meter (Check conversion here)
Total Number of Coils: 12 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

p = L_f/(N_t-1) --> 0.2/(12-1)

Evaluating ... ...

p = 0.0181818181818182

STEP 3: Convert Result to Output's Unit

0.0181818181818182 Meter -->18.1818181818182 Millimeter (Check conversion here)

FINAL ANSWER

18.1818181818182 ≈ 18.18182 Millimeter <-- Pitch of Coil Spring

(Calculation completed in 00.004 seconds)

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Home » Physics » Strength of Materials » Torsion of Shafts And Springs » Springs » Torsion of Coil Spring » Pitch of Coil Spring

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Created by Vivek Gaikwad

AISSMS College of Engineering, Pune (AISSMSCOE, Pune), Pune

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National Institute Of Technology (NIT), Hamirpur

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< 11 Torsion of Coil Spring Calculators

Stress Concentration Factor at Inner Fibers of Coil given Spring Index

Go Stress Concentration Factor at Inner Fibers = (4*Spring Index of Coil Spring^2-Spring Index of Coil Spring-1)/(4*Spring Index of Coil Spring*(Spring Index of Coil Spring-1))

Stress Concentration Factor at Outer Fibers of Coils

Go Stress Concentration Factor at Outer Fibres = (4*Spring Index of Coil Spring^2+Spring Index of Coil Spring-1)/(4*Spring Index of Coil Spring*(Spring Index of Coil Spring+1))

Mean Radius of Spring Coil of Helical Spring given Stiffness of Spring

Go Mean Radius Spring Coil = ((Modulus of Rigidity of Spring*Diameter of Spring Wire^4)/(64*Stiffness of Helical Spring*Number of Coils))^(1/3)

Mean Radius of Spring Coil given Maximum Shear Stress Induced in Wire

Go Mean Radius Spring Coil = (Maximum Shear Stress in Wire*pi*Diameter of Spring Wire^3)/(16*Axial Load)

Spring Index given Wire Diameter of Inner and Outer Springs

Go Spring Index of Coil Spring = (2*Wire Diameter of Outer Spring)/(Wire Diameter of Outer Spring-Wire Diameter of Inner Spring)

Wire Diameter of Inner Spring given Wire Diameter of Outer Spring and Spring Index

Go Wire Diameter of Inner Spring = (Spring Index of Coil Spring/(Spring Index of Coil Spring-2))*Wire Diameter of Outer Spring

Wire Diameter of Outer Spring given Wire Diameter of Inner Spring and Spring Index

Go Wire Diameter of Outer Spring = (Spring Index of Coil Spring/(Spring Index of Coil Spring-2))*Wire Diameter of Inner Spring

Total Axial Gap between Coils of Spring

Go Total Axial Gap between Coils of Springs = (Total Number of Coils-1)*Axial Gap between Adjacent Coils Bearing Max Load

Compressed Length of Coil Spring

Go Compressed Length of Spring = Solid Length of Spring+Total Axial Gap between Coils of Springs

Pitch of Coil Spring

Go Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1)

Mean Radius of Spring Coil

Go Mean Radius Spring Coil = Twisting Moments on Shells/Axial Load

Pitch of Coil Spring Formula

Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1)
p = L_f/(N_t-1)

What is free length of coil spring

Free length is an important dimension in spring design
and manufacture. It is the length of the spring in free
condition prior to assembly. Free length is given
by addition of compressed length and maximum deflection of spring.

How to Calculate Pitch of Coil Spring?

Pitch of Coil Spring calculator uses Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1) to calculate the Pitch of Coil Spring, The Pitch of coil spring formula is defined as the axial distance between adjacent coils in uncompressed state of spring. Pitch of Coil Spring is denoted by p symbol.

How to calculate Pitch of Coil Spring using this online calculator? To use this online calculator for Pitch of Coil Spring, enter Free Length of Spring (L_f) & Total Number of Coils (N_t) and hit the calculate button. Here is how the Pitch of Coil Spring calculation can be explained with given input values -> 18181.82 = 0.2/(12-1).

FAQ

What is Pitch of Coil Spring?

The Pitch of coil spring formula is defined as the axial distance between adjacent coils in uncompressed state of spring and is represented as p = L_f/(N_t-1) or Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1). Free length of spring is defined as the axial length of an unloaded helical compression spring. In this case, no external force acts on the spring & Total Number of Coils in spring is the total number of turns made by wire along its length.

How to calculate Pitch of Coil Spring?

The Pitch of coil spring formula is defined as the axial distance between adjacent coils in uncompressed state of spring is calculated using Pitch of Coil Spring = Free Length of Spring/(Total Number of Coils-1). To calculate Pitch of Coil Spring, you need Free Length of Spring (L_f) & Total Number of Coils (N_t). With our tool, you need to enter the respective value for Free Length of Spring & Total Number of Coils and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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