1. What is the Torque To Axial Force Formula?

The Torque To Axial Force formula calculates the axial force generated from torque in a screw or bolt. It is essential for determining the clamping force in bolted joints and mechanical assemblies.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( F \) — Axial force (N or lb)
• \( T \) — Torque (Nm or lb-in)
• \( K \) — Torque coefficient (dimensionless, typically 0.1-0.2)
• \( D \) — Bolt diameter (m or in)

Explanation: The formula converts applied torque into the resulting axial force, accounting for the bolt diameter and friction through the torque coefficient.

3. Importance of Axial Force Calculation

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

4. Using the Calculator

Tips: Enter torque in Nm or lb-in, torque coefficient (typically 0.1-0.2), and bolt diameter in m or in. All values must be positive.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical torque coefficient value?
A: The torque coefficient typically ranges from 0.1 to 0.2, with 0.2 being a common default value for standard conditions.

Q2: Why is the torque coefficient important?
A: The torque coefficient accounts for friction and other losses in the bolted joint, significantly affecting the relationship between torque and axial force.

Q3: Can this formula be used for all types of bolts?
A: While the formula is generally applicable, specific bolt types and conditions may require adjusted coefficients or different formulas.

Q4: How does lubrication affect the calculation?
A: Lubrication reduces friction, which typically lowers the torque coefficient, meaning less torque is needed to achieve the same axial force.

Q5: What units should I use for consistent results?
A: Use consistent units throughout: either metric (N, Nm, m) or imperial (lb, lb-in, in) to ensure accurate calculations.