1. What is Motor Torque?

Motor torque is the rotational force produced by an electric motor. It's a crucial parameter that determines the motor's ability to perform work and overcome resistance. Torque is measured in Newton-meters (Nm) and represents the force applied at a distance from the rotational axis.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Nm)
• \( P \) — Power (W)
• \( RPM \) — Rotational speed (revolutions per minute)
• \( \pi \) — Mathematical constant pi (approximately 3.1416)

Explanation: This formula converts power (work per unit time) to torque (rotational force) by accounting for the rotational speed. The factor of 60 converts minutes to seconds, and 2π converts revolutions to radians.

3. Importance of Torque Calculation

Details: Calculating torque is essential for motor selection, mechanical design, and ensuring proper system performance. It helps determine if a motor can provide sufficient force for specific applications and prevents overloading or underutilization of motor capabilities.

4. Using the Calculator

Tips: Enter power in watts (W) and rotational speed in revolutions per minute (RPM). Both values must be positive numbers. For accurate results, use consistent units throughout the calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between torque and power?
A: Power is the rate of doing work, while torque is the rotational force. Power = Torque × Angular Velocity.

Q2: Why is the 60 in the numerator?
A: The 60 converts minutes to seconds since power is measured in watts (joules per second) while RPM is in revolutions per minute.

Q3: Can I use this formula for any type of motor?
A: This formula works for calculating theoretical torque from power and RPM for various motor types, but actual torque may vary due to efficiency losses and other factors.

Q4: What are typical torque values for electric motors?
A: Torque values vary significantly based on motor size and type. Small hobby motors might produce 0.1-1 Nm, while industrial motors can produce hundreds of Nm.

Q5: How does torque relate to motor performance?
A: Torque determines a motor's ability to start under load, accelerate, and maintain operation against resistance. Higher torque generally means better performance under heavy loads.