1. What is Screw Torque To Axial Force Calculation?

The Screw Torque To Axial Force calculation determines the axial force generated from applied torque in mechanical fastening systems. This relationship is crucial for proper bolt tensioning and joint integrity in engineering applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Axial force (N)
• \( T \) — Applied torque (Nm)
• \( K \) — Torque coefficient (unitless)
• \( D \) — Diameter (m)

Explanation: The formula calculates the axial force generated when torque is applied to a screw or bolt, accounting for the torque coefficient and diameter.

3. Importance of Axial Force Calculation

Details: Accurate axial force calculation is essential for proper bolt tensioning, preventing joint failure, ensuring structural integrity, and maintaining safety in mechanical assemblies.

4. Using the Calculator

Tips: Enter torque in Nm, torque coefficient (typically 0.2 for standard bolts), and diameter in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for torque coefficient K?
A: For standard bolts, K typically ranges from 0.15 to 0.25, with 0.2 being a common default value.

Q2: Why is diameter measured in meters?
A: Using meters maintains SI unit consistency with Newton-meters for torque and Newtons for force.

Q3: Does this formula account for friction?
A: Yes, the torque coefficient K accounts for friction between threads and under the bolt head/nut.

Q4: When should this calculation be used?
A: This calculation is essential for proper bolt tensioning in structural applications, machinery assembly, and any scenario where precise clamping force is required.

Q5: Are there limitations to this formula?
A: This formula provides an estimate and may vary based on lubrication, surface conditions, and thread quality. For critical applications, direct measurement of bolt tension is recommended.