1. What Is Electric Motor Torque?

Torque is the rotational force produced by an electric motor, measured in Newton-meters (N·m). It represents the motor's ability to overcome resistance and perform work, determining how much load the motor can handle and how quickly it can accelerate.

2. How Does The Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (N·m)
• \( P \) — Power (watts)
• \( \omega \) — Angular velocity (rad/s)

Explanation: This formula calculates the torque generated by an electric motor based on its power output and rotational speed. Higher power or lower speed results in greater torque.

3. Importance Of Torque Calculation

Details: Accurate torque calculation is essential for motor selection, system design, and performance optimization. It helps determine if a motor can handle specific loads, ensures proper sizing for applications, and prevents motor overload or failure.

4. Using The Calculator

Tips: Enter power in watts and angular velocity in radians per second. Both values must be positive numbers. For RPM conversion to rad/s, use: ω = RPM × (2π/60).

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between torque and power?
A: Torque is rotational force (N·m), while power is the rate of doing work (watts). Power = Torque × Angular Velocity.

Q2: How do I convert RPM to rad/s?
A: Multiply RPM by (2π/60). Example: 1000 RPM = 1000 × (2×3.1416/60) ≈ 104.72 rad/s.

Q3: What affects electric motor torque?
A: Motor design, current, voltage, magnetic field strength, and load conditions all influence torque output.

Q4: What is starting torque vs running torque?
A: Starting torque is the torque at zero speed needed to overcome inertia, while running torque is the torque required to maintain rotation under load.

Q5: How does torque relate to motor efficiency?
A: Motors operate most efficiently at their rated torque. Operating outside optimal torque range reduces efficiency and can cause overheating.