Enter the resisting tension (N), the coefficient of friction, and the angle (rad) into the calculator to determine the Belt Friction Force.

## Belt Friction Force Formula

The following formula is used to calculate the Belt Friction Force.

BF = RT * e ^ (u*b)

• Where BF is the Belt Friction Force (N)
• RT is the resisting tension (N)
• u is the coefficient of friction
• b is the angle (rad)

## How to Calculate Belt Friction Force?

The following example problems outline how to calculate the Belt Friction Force.

Example Problem #1

1. First, determine the resisting tension (N). In this example, the resisting tension (N) is given as 200 .
2. Next, determine the coefficient of friction. For this problem, the coefficient of friction is given as  .35 .
3. Next, determine the angle (rad). In this case, the angle (rad) is found to be 1.2.
4. Finally, calculate the Belt Friction Force using the formula above:

BF = RT * e ^ (u*b)

Inserting the values from above yields:

BF = 200 * e ^ (.35*1.2) = 304.392 (N)

Example Problem #2

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

resisting tension (N) = 432

coefficient of friction = .6