Engineering

How to Calculate and Solve for Spring Torque | Material Selection

Last Updated on July 23, 2021

The image above represents spring torque.

To compute for spring torque, three essential parameters are needed and these parameters are Force Independent Constant (Kw), Compressive Force (F), Centre to Centre Diameter of Spring (D) and Cross-section Diameter of Spring (d).

The formula for calculating spring torque:

τ = Kw(8FD/πd³)

Where:

τ = Spring Torque
Kw = Force Independent Constant
F = Compressive Force
D = Centre to Centre Diameter of Spring
d = Cross-section Diameter of Spring

Let’s solve an example;
Find the spring torque when the force independent constant is 12, the compressive force is 24, the centre to centre diameter of spring is 11 and the cross-section diameter of spring is 44.

This implies that;

Kw = Force Independent Constant = 12
F = Compressive Force = 24
D = Centre to Centre Diameter of Spring = 11
d = Cross-section Diameter of Spring = 44

τ = Kw(8FD/πd³)
τ = 12(8(24)(11)/π(44)³)
τ = 12(2112/π(85184))
τ = 12(2112/267613.428)
τ = 12(0.0078)
τ = 0.0947

Therefore, the spring torque is 0.0947 Nm.

Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the spring torque.

To get the answer and workings of the spring torque using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.

You can get this app via any of these means:

Web – https://www.nickzom.org/calculator-plus

To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator

Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Materials and Metallurgical under Engineering.

Now, Click on Material Selection under Materials and Metallurgical

Now, Click on Spring Torque under Material Selection

The screenshot below displays the page or activity to enter your values, to get the answer for the spring torque according to the respective parameter which is the Force Independent Constant (Kw), Compressive Force (F), Centre to Centre Diameter of Spring (D) and Cross-section Diameter of Spring (d).

Now, enter the values appropriately and accordingly for the parameters as required by the Force Independent Constant (Kw) is 12, Compressive Force (F) is 24, Centre to Centre Diameter of Spring (D) is 11 and Cross-section Diameter of Spring (d) is 44.

Finally, Click on Calculate


As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the spring torque and presents the formula, workings and steps too.

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