1. What Is The Torque To Force Formula For Screw Thread Size?

The torque to force formula calculates the axial force generated from applied torque in screw threads. It is essential for determining clamping force and ensuring proper fastener tension in mechanical assemblies.

2. How Does The Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Force (lb)
• \( T \) — Torque (lb-in)
• \( K \) — Torque coefficient (decimal)
• \( D \) — Diameter (in)

Explanation: The formula converts torque input into axial force output, accounting for thread geometry and friction through the torque coefficient.

3. Importance Of Force Calculation

Details: Accurate force calculation is crucial for ensuring proper bolt tension, preventing joint failure, and maintaining structural integrity in mechanical systems.

4. Using The Calculator

Tips: Enter torque in lb-in, torque coefficient as a decimal value, and diameter in inches. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for torque coefficient K?
A: Torque coefficient typically ranges from 0.15 to 0.25 for most standard threaded fasteners, but can vary based on lubrication and surface conditions.

Q2: Why is diameter important in this calculation?
A: Diameter directly affects the lever arm and therefore the force generated from a given torque input.

Q3: Can this formula be used for metric units?
A: Yes, but all inputs must be in consistent units (e.g., N-m for torque, mm for diameter, resulting in N for force).

Q4: What factors affect torque coefficient?
A: Surface finish, lubrication, thread pitch, and material properties all influence the torque coefficient value.

Q5: How accurate is this calculation for real-world applications?
A: While the formula provides a good estimate, actual results may vary due to friction variations, so experimental validation is recommended for critical applications.