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How To Calculate Required Torque

Torque Formula:

\[ T = F \times r \]

N
m

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1. What Is Torque?

Torque is a measure of the rotational force applied to an object. It represents the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Torque is a vector quantity with both magnitude and direction.

2. How Does The Calculator Work?

The calculator uses the fundamental torque formula:

\[ T = F \times r \]

Where:

Explanation: The torque increases with both the magnitude of the force and the length of the lever arm. A longer lever arm allows less force to achieve the same torque.

3. Importance Of Torque Calculation

Details: Accurate torque calculation is essential in mechanical engineering, automotive applications, construction, and manufacturing. It ensures proper fastening, prevents mechanical failures, and optimizes machine performance.

4. Using The Calculator

Tips: Enter force in Newtons and lever arm in meters. Both values must be positive numbers. The calculator will compute the torque in Newton-meters (N·m).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between torque and force?
A: Force causes linear acceleration, while torque causes rotational acceleration. Torque depends on both the force applied and the distance from the pivot point.

Q2: What are common units for torque?
A: Newton-meters (N·m) in SI units, pound-feet (lb·ft) in imperial units, and kilogram-force meters (kgf·m) in metric units.

Q3: How does lever arm length affect torque?
A: Longer lever arms create more torque with the same amount of force. This is why wrenches with longer handles make it easier to loosen tight bolts.

Q4: Can torque be negative?
A: Yes, torque direction matters. Positive torque causes counterclockwise rotation, while negative torque causes clockwise rotation.

Q5: Where is torque calculation used in real life?
A: Automotive engines (engine torque), construction (bolt tightening), sports (golf swings, baseball bats), and industrial machinery.

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