1. What is Torque in Motor Selection?

Torque is a rotational force that causes angular acceleration. In motor selection, it's crucial to calculate the required torque to ensure the motor can handle the mechanical load under all operating conditions.

2. How Does the Calculator Work?

The calculator uses the torque formula:

Where:

• \( Load \) — Force applied (in Newtons)
• \( Radius \) — Distance from center (in meters)
• \( Gear\ Ratio \) — Ratio between input and output gears

Explanation: The formula calculates the torque required at the motor shaft, accounting for any mechanical advantage provided by the gear system.

3. Importance of Torque Calculation

Details: Proper torque calculation ensures the motor can start and maintain operation under load without stalling or overheating. Undersized motors may fail prematurely, while oversized motors are inefficient and costly.

4. Using the Calculator

Tips: Enter load in Newtons, radius in meters, and gear ratio (use 1 for direct drive). All values must be positive numbers. For multiple stages, multiply gear ratios together.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between starting and running torque?
A: Starting torque is typically higher than running torque due to inertia. Motors must be sized to handle both requirements.

Q2: How does efficiency affect torque requirements?
A: System inefficiencies (friction, etc.) increase required torque. Add 10-20% safety factor to calculated values.

Q3: What if my load is in kg instead of Newtons?
A: Convert mass (kg) to force (N) by multiplying by 9.81 (gravity acceleration).

Q4: How important is the gear ratio in torque calculation?
A: Gear ratios directly affect torque requirements. Higher ratios reduce required motor torque but increase speed requirements.

Q5: Should I consider dynamic loads?
A: For applications with acceleration/deceleration, calculate torque requirements for all operating conditions.