1. What is Motor Torque?

Torque is a rotational force that causes an object to rotate about an axis. In motors, it represents the rotational force the motor can generate at its shaft.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( \tau \) — Torque (Newton-meters, Nm)
• \( P \) — Power (watts)
• \( \omega \) — Angular speed (radians per second, rad/s)

Explanation: The equation shows that torque is inversely proportional to angular speed for a given power output.

3. Importance of Torque Calculation

Details: Calculating torque is essential for motor selection, mechanical design, and ensuring proper operation of rotating machinery.

4. Using the Calculator

Tips: Enter power in watts and angular speed in radians per second. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by 2π/60 (1 RPM = 0.10472 rad/s).

Q2: What's the difference between torque and power?
A: Torque is rotational force, while power is the rate of doing work (torque × angular speed).

Q3: Why does torque decrease as speed increases?
A: For a given power, torque must decrease as speed increases to maintain the same power output (P = τ × ω).

Q4: What are typical torque values for electric motors?
A: Small motors might produce 0.1-1 Nm, while industrial motors can produce hundreds or thousands of Nm.

Q5: How does this relate to horsepower?
A: 1 horsepower ≈ 745.7 watts. You can convert power to hp before using in the torque equation.