1. What Is The Torque Formula?

The torque formula T = K × F × D calculates the torque required for a screw or bolt, where T is the torque in Newton-meters (Nm), K is a dimensionless constant, F is the force in Newtons (N), and D is the diameter in meters (m).

2. How Does The Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( K \) — Dimensionless constant
• \( F \) — Force (N)
• \( D \) — Diameter (m)

Explanation: The formula calculates the rotational force needed to tighten a screw or bolt based on the applied force and diameter.

3. Importance Of Torque Calculation

Details: Accurate torque calculation is crucial for proper fastening, preventing under-tightening (which can lead to loosening) or over-tightening (which can damage threads or the material).

4. Using The Calculator

Tips: Enter the dimensionless constant K, force in Newtons, and diameter in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical value for K?
A: K typically ranges from 0.15 to 0.3 depending on the screw type, material, and lubrication, but always refer to manufacturer specifications.

Q2: Why is torque important in mechanical applications?
A: Proper torque ensures that fasteners are securely tightened without being damaged, maintaining structural integrity and safety.

Q3: Can this formula be used for all types of screws?
A: While the basic formula applies broadly, specific applications may require adjustments based on screw geometry and material properties.

Q4: What units should be used for accurate results?
A: Use Newtons for force and meters for diameter to get torque in Newton-meters. Convert units if necessary.

Q5: How does lubrication affect the K value?
A: Lubrication reduces friction, which typically lowers the K value, meaning less torque is needed to achieve the same clamping force.