1. What is a Ft Lbs To Psi Conversion Calculator?

Definition: This calculator converts torque in foot-pounds (ft lbs) to pressure in pounds per square inch (PSI) using the contact area and radius.

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( PSI \) — Pressure in pounds per square inch
• \( Ft\ Lbs \) — Torque in foot-pounds
• \( Area \) — Contact area in square inches
• \( Radius \) — Distance from center in feet

Explanation: The torque is divided by the product of the contact area and radius to determine the pressure distribution.

3. Importance of PSI Conversion

Details: Accurate PSI calculations are crucial for designing mechanical systems, ensuring proper fastener tension, and preventing material failure.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: Why do we need to consider radius in PSI calculation?
A: Radius affects the pressure distribution because torque creates a moment arm - pressure decreases with increasing radius.

Q2: What's a typical application for this calculation?
A: Common uses include bolt tensioning, bearing pressure analysis, and hydraulic system design.

Q3: How does area affect the PSI result?
A: Larger contact areas distribute the force, resulting in lower PSI values for the same torque.

Q4: Can I use this for metric units?
A: No, this calculator uses imperial units. For metric, convert Nm to PSI using appropriate conversions.

Q5: What if my radius is in inches?
A: Convert inches to feet (divide by 12) before entering the value for accurate results.