Width of Key given Compressive Stress in Key Formula

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Width of Key is defined as the width of the key that is fixed in between the shaft and the hub to prevent relative movement between a power transmitting shaft and an attached component. Check FAQs
bk=2Mtkdsσcl
bk - Width of Key?Mtk - Transmitted Torque by Kennedy Key?ds - Diameter of Shaft using Key?σc - Compressive Stress in Key?l - Length of Key?

Width of Key given Compressive Stress in Key Example

With values
With units
Only example

Here is how the Width of Key given Compressive Stress in Key equation looks like with Values.

Here is how the Width of Key given Compressive Stress in Key equation looks like with Units.

Here is how the Width of Key given Compressive Stress in Key equation looks like.

4.4545Edit=2635000Edit45Edit128Edit35Edit
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Width of Key given Compressive Stress in Key Solution

Follow our step by step solution on how to calculate Width of Key given Compressive Stress in Key?

FIRST Step Consider the formula
bk=2Mtkdsσcl
Next Step Substitute values of Variables
bk=2635000N*mm45mm128N/mm²35mm
Next Step Convert Units
bk=2635N*m0.045m1.3E+8Pa0.035m
Next Step Prepare to Evaluate
bk=26350.0451.3E+80.035
Next Step Evaluate
bk=0.00445449212354621m
Next Step Convert to Output's Unit
bk=4.45449212354621mm
LAST Step Rounding Answer
bk=4.4545mm

Width of Key given Compressive Stress in Key Formula Elements

Variables
Functions
Width of Key
Width of Key is defined as the width of the key that is fixed in between the shaft and the hub to prevent relative movement between a power transmitting shaft and an attached component.
Symbol: bk
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Transmitted Torque by Kennedy Key
Transmitted Torque by Kennedy Key is defined as the amount of torque or the rotating power transferred from a shaft using a key into it.
Symbol: Mtk
Measurement: TorqueUnit: N*mm
Note: Value should be greater than 0.
Diameter of Shaft using Key
Diameter of Shaft using Key is defined as the external surface diameter of a shaft (a rotating machine element) using a key into it.
Symbol: ds
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
Compressive Stress in Key
Compressive Stress in Key is the force per unit area of a key cross-section that is responsible for the deformation of the material such that the volume of the material reduces.
Symbol: σc
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Length of Key
The Length of Key is defined as the length of the key which is used to prevent rotation of a machine component or it is the major dimension of the key.
Symbol: l
Measurement: LengthUnit: mm
Note: Value should be greater than 0.
sqrt
A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.
Syntax: sqrt(Number)

Other formulas in Design of Kennedy Key category

​Go Shear Stress in Kennedy Key
𝜏=Mtk2dsbkl
​Go Torque Transmitted by Kennedy Key given Shear Stress in Key
Mtk=𝜏2dsbkl
​Go Diameter of Shaft given Shear Stress in Kennedy Key
ds=Mtk2𝜏bkl
​Go Length of Kennedy Key given Shear Stress in Key
l=Mtk2dsbk𝜏

How to Evaluate Width of Key given Compressive Stress in Key?

Width of Key given Compressive Stress in Key evaluator uses Width of Key = sqrt(2)*Transmitted Torque by Kennedy Key/(Diameter of Shaft using Key*Compressive Stress in Key*Length of Key) to evaluate the Width of Key, The Width of Key given Compressive Stress in Key formula is defined as width of key which is coupled with shaft for torque transmission. Width of Key is denoted by bk symbol.

How to evaluate Width of Key given Compressive Stress in Key using this online evaluator? To use this online evaluator for Width of Key given Compressive Stress in Key, enter Transmitted Torque by Kennedy Key (Mtk), Diameter of Shaft using Key (ds), Compressive Stress in Key c) & Length of Key (l) and hit the calculate button.

FAQs on Width of Key given Compressive Stress in Key

What is the formula to find Width of Key given Compressive Stress in Key?
The formula of Width of Key given Compressive Stress in Key is expressed as Width of Key = sqrt(2)*Transmitted Torque by Kennedy Key/(Diameter of Shaft using Key*Compressive Stress in Key*Length of Key). Here is an example- 4454.492 = sqrt(2)*635/(0.045*128000000*0.035).
How to calculate Width of Key given Compressive Stress in Key?
With Transmitted Torque by Kennedy Key (Mtk), Diameter of Shaft using Key (ds), Compressive Stress in Key c) & Length of Key (l) we can find Width of Key given Compressive Stress in Key using the formula - Width of Key = sqrt(2)*Transmitted Torque by Kennedy Key/(Diameter of Shaft using Key*Compressive Stress in Key*Length of Key). This formula also uses Square Root Function function(s).
Can the Width of Key given Compressive Stress in Key be negative?
No, the Width of Key given Compressive Stress in Key, measured in Length cannot be negative.
Which unit is used to measure Width of Key given Compressive Stress in Key?
Width of Key given Compressive Stress in Key is usually measured using the Millimeter[mm] for Length. Meter[mm], Kilometer[mm], Decimeter[mm] are the few other units in which Width of Key given Compressive Stress in Key can be measured.
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