1. What is Motor Torque Calculation?

Motor torque calculation determines the rotational force produced by an electric motor based on its power output and rotational speed. This is essential for selecting appropriate motors for specific applications and ensuring proper system performance.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( T \) — Torque (Newton-meters)
• \( P \) — Power (kilowatts)
• \( N \) — Rotational speed (revolutions per minute)
• 9550 — Conversion constant

Explanation: The formula converts power and rotational speed into torque, accounting for the relationship between these fundamental motor characteristics.

3. Importance of Torque Calculation

Details: Accurate torque calculation is crucial for motor selection, system design, and ensuring that motors can provide sufficient rotational force for their intended applications without overloading.

4. Using the Calculator

Tips: Enter power in kilowatts and rotational speed in RPM. Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: Why is the constant 9550 used in the formula?
A: The constant 9550 converts units from kW and RPM to Nm, accounting for the relationship between power, torque, and rotational speed.

Q2: What are typical torque values for electric motors?
A: Torque values vary significantly based on motor size and type, ranging from fractional Nm for small motors to thousands of Nm for large industrial motors.

Q3: How does torque relate to motor performance?
A: Torque determines a motor's ability to overcome resistance and accelerate loads. Higher torque enables motors to handle heavier loads and faster acceleration.

Q4: Can this formula be used for all types of motors?
A: This formula applies to various electric motor types including AC, DC, and servo motors when calculating output torque from power and speed.

Q5: How does motor efficiency affect torque calculation?
A: The formula calculates theoretical output torque. Actual torque may vary due to motor efficiency, load conditions, and other operational factors.