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

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## 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**

- First, determine the resisting tension (N). In this example, the resisting tension (N) is given as 200 .
- Next, determine the coefficient of friction. For this problem, the coefficient of friction is given as .35 .
- Next, determine the angle (rad). In this case, the angle (rad) is found to be 1.2.
- 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

angle (rad) = 2

Entering these given values and solving gives:

BF = 432 * e ^ (.6*2) = 1434.29** **(N)