Mean Coil Diameter of Spring Calculator

✖Outer Diameter of Spring Coil is defined as the outside diameter of the spring coil winding.ⓘ Outer Diameter of Spring Coil [D_o]			+10% -10%
✖Inner Diameter of Spring Coil is defined as inside diameter of the spring Winding coil.ⓘ Inner Diameter of Spring Coil [D_i]			+10% -10%

✖The Mean Coil Diameter of Spring is defined as the average of the inner and the outer diameters of a spring.ⓘ Mean Coil Diameter of Spring [D]

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Formula

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Mean Coil Diameter of Spring

Formula

`"D" = ("D"_{"o"}+"D"_{"i"})/2`

Example

`"36mm"=("40mm"+"32mm")/2`

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Mean Coil Diameter of Spring Solution

STEP 0: Pre-Calculation Summary

Formula Used

Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2
D = (D_o+D_i)/2
This formula uses 3 Variables

Variables Used

Mean Coil Diameter of Spring - (Measured in Meter) - The Mean Coil Diameter of Spring is defined as the average of the inner and the outer diameters of a spring.
Outer Diameter of Spring Coil - (Measured in Meter) - Outer Diameter of Spring Coil is defined as the outside diameter of the spring coil winding.
Inner Diameter of Spring Coil - (Measured in Meter) - Inner Diameter of Spring Coil is defined as inside diameter of the spring Winding coil.

STEP 1: Convert Input(s) to Base Unit

Outer Diameter of Spring Coil: 40 Millimeter --> 0.04 Meter (Check conversion here)
Inner Diameter of Spring Coil: 32 Millimeter --> 0.032 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

D = (D_o+D_i)/2 --> (0.04+0.032)/2

Evaluating ... ...

D = 0.036

STEP 3: Convert Result to Output's Unit

0.036 Meter -->36 Millimeter (Check conversion here)

FINAL ANSWER

36 Millimeter <-- Mean Coil Diameter of Spring

(Calculation completed in 00.004 seconds)

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Home » Physics » Design of Automobile Elements » Design of Springs » Helical Springs » Geometry of Helical Springs » Mean Coil Diameter of Spring

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Created by Kethavath Srinath

Osmania University (OU), Hyderabad

Kethavath Srinath has created this Calculator and 1000+ more calculators!

Verified by Urvi Rathod

Vishwakarma Government Engineering College (VGEC), Ahmedabad

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< 9 Geometry of Helical Springs Calculators

Diameter of Spring Wire from Load Stress Equation

Go Diameter of spring wire = sqrt(Wahl Factor of Spring*(8*Axial Spring Force*Spring Index)/(pi*Shear Stress in Spring))

Spring Index given Shear stress in Spring

Go Spring Index = Shear Stress in Spring*(pi*Diameter of spring wire^2)/(Wahl Factor of Spring*8*Axial Spring Force)

Mean Coil Diameter of Spring

Go Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2

Inside Diameter of Spring Coil given Mean Coil Diameter

Go Inner Diameter of Spring Coil = 2*Mean Coil Diameter of Spring-Outer Diameter of Spring Coil

Outside Diameter of Spring given Mean Coil Diameter

Go Outer Diameter of Spring Coil = 2*Mean Coil Diameter of Spring-Inner Diameter of Spring Coil

Total Number of Coils given Solid Length of Spring

Go Total Coils in Spring = Solid Length of Spring/Diameter of spring wire

Diameter of Spring Wire given Spring Index

Go Diameter of spring wire = Mean Coil Diameter of Spring/Spring Index

Mean Coil Diameter given Spring Index

Go Mean Coil Diameter of Spring = Spring Index*Diameter of spring wire

Spring Index

Go Spring Index = Mean Coil Diameter of Spring/Diameter of spring wire

Mean Coil Diameter of Spring Formula

Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2
D = (D_o+D_i)/2

Define a Spring?

A spring is an elastic object that stores mechanical energy. Springs are typically made of spring steel. There are many spring designs. In everyday use, the term often refers to coil springs. The rate or spring constant of a spring is the change in the force it exerts, divided by the change in deflection of the spring.

How to Calculate Mean Coil Diameter of Spring?

Mean Coil Diameter of Spring calculator uses Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2 to calculate the Mean Coil Diameter of Spring, Mean Coil Diameter of Spring is defined as the average of the inside and the outside diameter of the spring coil. Mean Coil Diameter of Spring is denoted by D symbol.

How to calculate Mean Coil Diameter of Spring using this online calculator? To use this online calculator for Mean Coil Diameter of Spring, enter Outer Diameter of Spring Coil (D_o) & Inner Diameter of Spring Coil (D_i) and hit the calculate button. Here is how the Mean Coil Diameter of Spring calculation can be explained with given input values -> 36000 = (0.04+0.032)/2.

FAQ

What is Mean Coil Diameter of Spring?

Mean Coil Diameter of Spring is defined as the average of the inside and the outside diameter of the spring coil and is represented as D = (D_o+D_i)/2 or Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2. Outer Diameter of Spring Coil is defined as the outside diameter of the spring coil winding & Inner Diameter of Spring Coil is defined as inside diameter of the spring Winding coil.

How to calculate Mean Coil Diameter of Spring?

Mean Coil Diameter of Spring is defined as the average of the inside and the outside diameter of the spring coil is calculated using Mean Coil Diameter of Spring = (Outer Diameter of Spring Coil+Inner Diameter of Spring Coil)/2. To calculate Mean Coil Diameter of Spring, you need Outer Diameter of Spring Coil (D_o) & Inner Diameter of Spring Coil (D_i). With our tool, you need to enter the respective value for Outer Diameter of Spring Coil & Inner Diameter of Spring Coil and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

How many ways are there to calculate Mean Coil Diameter of Spring?

In this formula, Mean Coil Diameter of Spring uses Outer Diameter of Spring Coil & Inner Diameter of Spring Coil. We can use 1 other way(s) to calculate the same, which is/are as follows -

Mean Coil Diameter of Spring = Spring Index*Diameter of spring wire

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