1. What is Load Torque?

Load torque is the torque required to drive a mechanical load. It represents the resistance that a motor must overcome to rotate a load at a constant speed. Understanding load torque is essential for proper motor selection and system design.

2. How Does the Calculator Work?

The calculator uses the load torque formula:

Where:

• \( T_{load} \) — Load torque (Nm)
• \( F \) — Applied force (N)
• \( r \) — Radius or moment arm (m)

Explanation: The formula calculates the rotational force (torque) produced when a linear force is applied at a distance from the center of rotation.

3. Importance of Load Torque Calculation

Details: Accurate load torque calculation is crucial for selecting appropriate motors, ensuring system efficiency, preventing motor overload, and designing mechanical systems that operate within safe parameters.

4. Using the Calculator

Tips: Enter force in Newtons (N) and radius in meters (m). Both values must be positive numbers greater than zero for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between load torque and motor torque?
A: Load torque is the resistance the load presents, while motor torque is the turning force the motor can produce. The motor torque must exceed the load torque for the system to operate.

Q2: How does gear ratio affect load torque?
A: Gearing can multiply torque while reducing speed. The reflected load torque to the motor is the actual load torque divided by the gear ratio.

Q3: What are typical units for torque measurement?
A: Torque is commonly measured in Newton-meters (Nm) in the metric system or pound-feet (lb-ft) in the imperial system.

Q4: How does friction affect load torque calculations?
A: Frictional forces add to the total load torque that the motor must overcome. In practical applications, friction torque should be added to the calculated load torque.

Q5: When is peak torque different from continuous torque?
A: Peak torque is the maximum torque a motor can produce for short durations, while continuous torque is what it can sustain indefinitely. Load torque should not exceed the motor's continuous torque rating for prolonged operation.