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Nm to psi Torque Conversion

Pressure Formula:

\[ P = \frac{T}{A \times r} \]

Nm
in²
in

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1. What is Torque to Pressure Conversion?

Definition: This calculator converts torque (in Newton-meters) to pressure (in psi) based on the contact area and radius.

Purpose: It helps engineers and technicians determine the pressure exerted when torque is applied to a specific area and radius.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ P = \frac{T}{A \times r} \]

Where:

Explanation: The torque is divided by the product of area and radius to calculate the resulting pressure.

3. Importance of Torque to Pressure Conversion

Details: Understanding the relationship between torque and pressure is crucial in mechanical design, fastener applications, and ensuring proper clamping forces.

4. Using the Calculator

Tips: Enter the torque in Nm, contact area in square inches, and radius in inches. All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: Why is radius important in this calculation?
A: Radius determines the lever arm effect - the same torque applied at different radii produces different pressures.

Q2: How do I convert psi to other pressure units?
A: 1 psi = 6.89476 kPa. Multiply psi by 6.89476 to get kilopascals.

Q3: What's a typical torque value for bolts?
A: This varies greatly by bolt size and material, but common values range from 10-150 Nm for automotive applications.

Q4: How does area affect the pressure calculation?
A: Larger contact areas distribute the force, resulting in lower pressure for the same torque.

Q5: Can I use this for hydraulic systems?
A: This calculator is for mechanical torque applications, not hydraulic pressure systems.

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