1. What is Stepper Motor Torque?

Stepper motor torque is the rotational force produced by the motor, calculated from power input and rotational speed. It's a critical parameter in motion control applications where precise positioning is required.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( \tau \) — Torque (N·m)
• \( P \) — Power (W)
• \( n \) — Speed (rpm)
• \( \pi \) — Mathematical constant pi (approximately 3.1416)

Explanation: The formula converts power and rotational speed into torque output, accounting for unit conversions between watts, revolutions per minute, and newton-meters.

3. Importance of Torque Calculation

Details: Accurate torque calculation is essential for selecting appropriate stepper motors, ensuring they can provide sufficient force for the intended application without stalling or losing steps.

4. Using the Calculator

Tips: Enter power in watts and speed in revolutions per minute. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect stepper motor torque?
A: Torque is influenced by current, voltage, winding configuration, and the motor's physical design characteristics.

Q2: How does speed affect stepper motor torque?
A: Stepper motors typically experience torque drop-off at higher speeds due to back EMF and current limitations.

Q3: What is holding torque vs running torque?
A: Holding torque is the maximum torque when stationary, while running torque is available during rotation and is typically lower.

Q4: Why is torque calculation important in applications?
A: Proper torque calculation ensures the motor can overcome load inertia, friction, and acceleration requirements without missing steps.

Q5: Can this formula be used for all motor types?
A: This specific formula is designed for calculating torque from power and speed, but different motor types may have additional considerations.