1. What is a Ft Lb To Psi Calculator?

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

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

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

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

3. Importance of Torque to PSI Conversion

Details: This calculation is crucial for designing mechanical systems, ensuring proper bolt tension, and preventing material failure under pressure.

4. Using the Calculator

Tips: Enter the torque in foot-pounds, contact area in square inches, and radius in feet. 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 - pressure decreases as radius increases for the same torque value.

Q2: What's a typical application for this calculation?
A: Commonly used in bolt tensioning, bearing pressure calculations, and mechanical joint design.

Q3: How does area affect the PSI result?
A: Larger contact areas result in lower PSI for the same torque, as the force is distributed over more square inches.

Q4: Can this be used for hydraulic pressure calculations?
A: No, this is specifically for torque-related pressure. Hydraulic pressure uses different formulas.

Q5: What units should I use for radius?
A: The calculator expects radius in feet to match the foot-pounds torque unit.