1. What is Torque?

Torque is a measure of the rotational force applied to an object. In motor applications, it represents the motor's ability to perform work and overcome resistance to rotation.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Newton-meters, N·m)
• \( P \) — Power (watts)
• \( \omega \) — Angular speed (radians per second, rad/s)

Explanation: This formula calculates the torque produced by a motor given its power output and rotational speed. It shows the inverse relationship between torque and speed for a given power level.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, mechanical design, ensuring proper operation under load, and preventing motor overload or failure.

4. Using the Calculator

Tips: Enter power in watts and angular speed in radians per second. Both values must be positive numbers. For RPM to rad/s conversion, multiply RPM by 0.10472.

5. Frequently Asked Questions (FAQ)

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

Q2: How do I convert RPM to rad/s?
A: Multiply RPM by 0.10472 (since 1 RPM = 2π/60 rad/s ≈ 0.10472 rad/s).

Q3: What are typical torque values for electric motors?
A: Torque varies greatly by motor size and type, from small hobby motors (0.01-0.1 N·m) to industrial motors (hundreds of N·m).

Q4: Why does torque decrease as speed increases?
A: For a given power, torque must decrease as speed increases to maintain the power relationship (P = T × ω).

Q5: Can this calculator be used for all types of motors?
A: Yes, the fundamental relationship applies to all rotating machinery, though efficiency factors may need consideration for specific applications.