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Normal Reaction Force Formula

GoNormal Reaction Force given Braking Torque Formula

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Normal Reaction on Brake is the force exerted by the drum or the disc onto the brake or vice versa. Check FAQs

N = p \cdot l \cdot w

N - Normal Reaction on Brake?p - Pressure Between Block And Brake Drum?l - Length of Block of Brake?w - Width of Brake Block Shoe?

Normal Reaction Force Example

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Here is how the Normal Reaction Force equation looks like with Values.

Here is how the Normal Reaction Force equation looks like with Units.

Here is how the Normal Reaction Force equation looks like.

5775 = 2.1 \cdot 110 \cdot 25

5775N = 2.1MPa \cdot 110mm \cdot 25mm

5775 = 2.1 \cdot 110 \cdot 25

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Normal Reaction Force Solution

Follow our step by step solution on how to calculate Normal Reaction Force?

FIRST Step Consider the formula

N = p \cdot l \cdot w

Next Step Substitute values of Variables

∴

N = 2.1MPa \cdot 110mm \cdot 25mm

Next Step Convert Units

∴

N = 2.1E+6Pa \cdot 0.11m \cdot 0.025m

Next Step Prepare to Evaluate

∴

N = 2.1E+6 \cdot 0.11 \cdot 0.025

LAST Step Evaluate

∴

N = 5775N

Normal Reaction Force Formula Elements

Variables

Normal Reaction on Brake

Normal Reaction on Brake is the force exerted by the drum or the disc onto the brake or vice versa.

Symbol: N

Measurement: ForceUnit: N

Note: Value should be greater than 0.

Formulas to find Normal Reaction on Brake

Pressure Between Block And Brake Drum

Pressure Between Block And Brake Drum is the permissible amount of pressure between the block and the brake drum.

Symbol: p

Measurement: PressureUnit: MPa

Note: Value should be greater than 0.

Formulas to find Pressure Between Block And Brake Drum

Length of Block of Brake

Length of Block of Brake is defined as the length of the block of the brake with a short shoe.

Symbol: l

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Length of Block of Brake

Width of Brake Block Shoe

Width of Brake Block Shoe is defined as the width of the block of a brake with the short shoe.

Symbol: w

Measurement: LengthUnit: mm

Note: Value should be greater than 0.

Formulas to find Width of Brake Block Shoe

Other Formulas to find Normal Reaction on Brake

Go Normal Reaction Force given Braking Torque

N = \frac{M f}{μ \cdot r}

Other formulas in Block Brake category

Go Equivalent Coefficient of Friction in Block Brake with Long Shoe

µ' = μ \cdot (\frac{4 \cdot \sin (θ w)}{2 \cdot θ w + \sin (2 \cdot θ w)})

Go Actual Coefficient of Friction given Equivalent Coefficient of Friction

μ = \frac{µ'}{\frac{4 \cdot \sin (θ w)}{2 \cdot θ w + \sin (2 \cdot θ w)}}

Go Braking Torque when Brakes are Applied

M f = μ \cdot N \cdot r

Go Coefficient of Friction given Braking Torque

μ = \frac{M f}{N \cdot r}

How to Evaluate Normal Reaction Force?

Normal Reaction Force evaluator uses Normal Reaction on Brake = Pressure Between Block And Brake Drum*Length of Block of Brake*Width of Brake Block Shoe to evaluate the Normal Reaction on Brake, The Normal Reaction Force formula is defined as the force exerted by a surface on an object in contact with it which prevents the object from passing through the surface. Normal Reaction on Brake is denoted by N symbol.

How to evaluate Normal Reaction Force using this online evaluator? To use this online evaluator for Normal Reaction Force, enter Pressure Between Block And Brake Drum (p), Length of Block of Brake (l) & Width of Brake Block Shoe (w) and hit the calculate button.

FAQs on Normal Reaction Force

What is the formula to find Normal Reaction Force?

The formula of Normal Reaction Force is expressed as Normal Reaction on Brake = Pressure Between Block And Brake Drum*Length of Block of Brake*Width of Brake Block Shoe. Here is an example- 5775 = 2100000*0.11*0.025.

How to calculate Normal Reaction Force?

With Pressure Between Block And Brake Drum (p), Length of Block of Brake (l) & Width of Brake Block Shoe (w) we can find Normal Reaction Force using the formula - Normal Reaction on Brake = Pressure Between Block And Brake Drum*Length of Block of Brake*Width of Brake Block Shoe.

What are the other ways to Calculate Normal Reaction on Brake?

Here are the different ways to Calculate Normal Reaction on Brake-

Normal Reaction on Brake=Braking or Fixing Torque on Fixed Member/(Coefficient of Friction For Brake*Radius of Brake Drum)

Can the Normal Reaction Force be negative?

No, the Normal Reaction Force, measured in Force cannot be negative.

Which unit is used to measure Normal Reaction Force?

Normal Reaction Force is usually measured using the Newton[N] for Force. Exanewton[N], Meganewton[N], Kilonewton[N] are the few other units in which Normal Reaction Force can be measured.

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Normal Reaction Force Formula

​GoNormal Reaction Force given Braking Torque Formula

Normal Reaction Force Example

Normal Reaction Force Solution

Normal Reaction Force Formula Elements

Other Formulas to find Normal Reaction on Brake

Other formulas in Block Brake category

How to Evaluate Normal Reaction Force?

FAQs on Normal Reaction Force

Variable Name

GoNormal Reaction Force given Braking Torque Formula