1. What is the Torque Calculation Formula?

The torque calculation formula \( T = \frac{P \times 9549}{RPM} \) calculates torque from power and rotational speed. This formula is commonly used in mechanical engineering to determine the twisting force produced by rotating machinery.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( P \) — Power (kW)
• \( RPM \) — Rotational speed (rev/min)
• 9549 — Conversion factor

Explanation: The formula converts power in kilowatts and rotational speed in revolutions per minute to torque in Newton-meters.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for designing mechanical systems, selecting appropriate motors and gearboxes, and ensuring proper operation of rotating equipment.

4. Using the Calculator

Tips: Enter power in kilowatts (kW) and rotational speed in revolutions per minute (RPM). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why is 9549 used in the formula?
A: 9549 is a conversion factor that accounts for the units conversion from kilowatts and RPM to Newton-meters.

Q2: What are typical torque values for different applications?
A: Torque values vary widely depending on the application, from small fractional Nm values for precision instruments to thousands of Nm for industrial machinery.

Q3: Can this formula be used for any rotating system?
A: Yes, this formula can be applied to any rotating mechanical system where power and rotational speed are known.

Q4: How does torque relate to mechanical power?
A: Torque and rotational speed together determine mechanical power. Power is the product of torque and angular velocity.

Q5: What if I have power in horsepower instead of kilowatts?
A: You would need to convert horsepower to kilowatts first (1 hp = 0.7457 kW) before using this formula.