Enter the total load torque (N-m), the total inertia torque (N-m), and the total friction torque (N-m) into the calculator to determine the Braking Torque. 

Braking Torque Formula

The following formula is used to calculate the Braking Torque.

Tb = TL + TI – TF

  • Where Tb is the Braking Torque (N-m)
  • TL is the total load torque (N-m) 
  • TI is the total inertia torque (N-m) 
  • TF is the total friction torque (N-m) 

How to Calculate Braking Torque?

The following example problems outline how to calculate Braking Torque.

Example Problem #1

  1. First, determine the total load torque (N-m). In this example, the total load torque (N-m) is determined to be 50 .
  2. Next, determine the total inertia torque (N-m). For this problem, the total inertia torque (N-m) is measured to be 40 .
  3. Next, determine the total friction torque (N-m). In this case, the total friction torque (N-m) is found to be 70.
  4. Finally, calculate the Braking Torque using the formula above: 

Tb = TL + TI – TF

Inserting the values from above and solving yields: 

Tb = 50 + 40 – 70 = 20 (N-m)


Example Problem #2

Using the same method as above, determine the variables required by the formula. For this example problem, these are:

total load torque (N-m) = 8

total inertia torque (N-m) = 400

total friction torque (N-m) = 12

Enter these given values yields: 

Tb = 8 + 400 – 12 = 396 (N-m)