Frictional Torque Calculator

Calculate the frictional torque based on normal force and coefficient of friction for rotating objects

Input Parameters

Calculation Results

Calculation Formula

Frictional Torque (T) = μ × N × r

Where:
T = Frictional Torque (Newtons·meters)
μ = Coefficient of Friction
N = Normal Force (Newtons)
r = Radius (meters)

Frictional Torque Calculator Usage Guide

Learn how to use the Frictional Torque Calculator and understand the physics behind it

How to Use This Calculator

  1. Enter the radius of the rotating object in meters
  2. Input the normal force acting on the object in Newtons
  3. Specify the coefficient of friction between the surfaces
  4. Click the "Calculate" button to compute the frictional torque
  5. Use the "Reset" button to clear all inputs and start over

Understanding Frictional Torque

Frictional torque is the rotational force that resists movement between two surfaces in contact. It's commonly encountered in rotating machinery, such as bearings, shafts, and pulleys.

The formula used in this calculator is:

T = μ × N × r

Where T is the frictional torque, μ is the coefficient of friction, N is the normal force, and r is the radius of rotation.

Applications

  • Engineers designing rotating machinery
  • Technicians maintaining equipment
  • Students studying physics and engineering principles
  • Anyone analyzing rotational motion with friction

Important Notes

The coefficient of friction varies depending on the materials in contact. Common values range from 0 (perfectly smooth surfaces) to 1 (highly rough surfaces), though some materials can have coefficients exceeding 1.