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 rate at which work is done by the motor.

2. How Does the Calculator Work?

The calculator uses the fundamental power equation:

Where:

• \( P_{out} \) — Output power (Watts)
• \( T \) — Torque (Newton-meters)
• \( \omega \) — Angular speed (radians per second)

Explanation: This equation shows that power increases linearly with both torque and rotational speed. Doubling either parameter doubles the power output.

3. Importance of Power Calculation

Details: Calculating motor output power is essential for:

• Selecting appropriate motors for applications
• Determining energy efficiency
• Sizing electrical components
• Evaluating performance under load

4. Using the Calculator

Tips:

• Enter torque in Newton-meters (Nm)
• Enter angular speed in radians per second (rad/s)
• For RPM to rad/s conversion: multiply RPM by 0.10472
• All values must be positive numbers

5. Frequently Asked Questions (FAQ)

Q1: How do I convert RPM to rad/s?
A: Multiply RPM by π/30 (approximately 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, while output power is mechanical power delivered. The ratio is efficiency.

Q3: Can I use this for hydraulic motors?
A: Yes, the same formula applies to any rotational power system, including hydraulic and pneumatic motors.

Q4: What are typical power ranges for electric motors?
A: Small motors: watts to hundreds of watts. Industrial motors: kilowatts to megawatts.

Q5: How does power relate to motor size?
A: Generally, higher power requires larger motors, but advanced materials and designs can increase power density.