1. What is Motor Torque Requirement?

The motor torque requirement is the amount of rotational force needed from a motor to move a given load at a specified radius, accounting for any gear reduction in the system. It's a critical parameter in motor selection and mechanical design.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( Load \) — Force applied (Newtons)
• \( Radius \) — Distance from center of rotation (meters)
• \( Gear\ Ratio \) — Ratio of input to output speed (dimensionless)

Explanation: The equation calculates the torque needed at the motor shaft after accounting for any gear reduction in the system.

3. Importance of Torque Calculation

Details: Proper torque calculation ensures the selected motor can handle the mechanical 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 (1 if direct drive). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What if I don't have a gear system?
A: Use a gear ratio of 1 for direct drive systems (no gear reduction).

Q2: How do I convert lbs to Newtons?
A: Multiply pounds by 4.448 to get Newtons (1 lb = 4.448 N).

Q3: What's a typical gear ratio range?
A: Common gear ratios range from 1:1 (direct drive) to 100:1 or more for high-reduction applications.

Q4: Should I add a safety factor?
A: Yes, it's common practice to multiply calculated torque by 1.2-2.0 to account for friction, inefficiencies, and load variations.

Q5: How does this relate to motor power?
A: Power (Watts) = Torque (Nm) × Angular Velocity (rad/s). You'll need both torque and speed requirements to properly size a motor.