1. What is Torque?

Torque is a measure of the rotational force applied to an object. In the context of a rotating shaft, it represents the twisting force that causes rotation. The unit of torque is Newton-meter (Nm).

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( \tau \) — Torque (Nm)
• \( P \) — Power (watts)
• \( \omega \) — Angular speed (rad/s)

Explanation: The equation shows that torque is directly proportional to power and inversely proportional to angular speed.

3. Importance of Torque Calculation

Details: Calculating torque is essential for designing mechanical systems, selecting appropriate motors, and ensuring shafts can handle the rotational forces without failing.

4. Using the Calculator

Tips: Enter power in watts and angular speed in radians per second. Both 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 (approximately 0.10472) to convert to rad/s.

Q2: What's the difference between torque and power?
A: Torque is a rotational force, while power is the rate at which work is done. Power combines torque and rotational speed.

Q3: 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.

Q4: How does torque relate to shaft diameter?
A: The shaft must be designed to withstand the shear stresses caused by torque. Larger diameters can handle more torque.

Q5: Can this calculator be used for linear motion?
A: No, this is specifically for rotational systems. For linear motion, you'd use force = power/velocity.