1. What is Motor Output Power?

Motor output power is the mechanical power delivered by a motor, calculated as the product of torque and angular velocity. It represents the actual work the motor can perform.

2. How Does the Calculator Work?

The calculator uses the fundamental power formula:

Where:

• \( P_{out} \) — Output power in watts (W)
• \( T \) — Torque in newton-meters (Nm)
• \( \omega \) — Angular speed in radians per second (rad/s)

Explanation: This formula shows that power output increases linearly with both torque and rotational speed.

3. Importance of Output Power Calculation

Details: Knowing a motor's output power is essential for selecting the right motor for an application, determining energy efficiency, and ensuring the motor isn't overloaded.

4. Using the Calculator

Tips: Enter torque in Nm and angular speed in rad/s. Both values must be positive numbers. For RPM conversion, multiply RPM by 0.10472 to get rad/s.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by 2π/60 (≈0.10472). For example, 1000 RPM = 1000 × 0.10472 ≈ 104.72 rad/s.

Q2: What's the difference between input and output power?
A: Input power is electrical power consumed (Volts × Amps), while output power is mechanical power delivered. The ratio is efficiency.

Q3: What are typical torque values for small motors?
A: Small DC motors might produce 0.01-0.1 Nm, while industrial motors can produce hundreds of Nm.

Q4: How does power relate to horsepower?
A: 1 horsepower ≈ 745.7 watts. To convert, divide watts by 745.7.

Q5: Why is power important for motor selection?
A: The motor must provide enough power to overcome the load's torque at the required speed, plus some margin for safety.