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Shear Stress in Key is the force per unit area tending to cause deformation of the key by slippage along a plane or planes parallel to the imposed stress. Check FAQs
𝜏=2Mtbklds
𝜏 - Shear Stress in Key?Mt - Transmitted Torque by Keyed Shaft?bk - Width of Key?l - Length of Key?ds - Diameter of Shaft using Key?

Shear Stress in Key given Torque Transmitted Example

With values
With units
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Here is how the Shear Stress in Key given Torque Transmitted equation looks like with Values.

Here is how the Shear Stress in Key given Torque Transmitted equation looks like with Units.

Here is how the Shear Stress in Key given Torque Transmitted equation looks like.

57.0159Edit=2224500Edit5Edit35Edit45Edit
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Shear Stress in Key given Torque Transmitted Solution

Follow our step by step solution on how to calculate Shear Stress in Key given Torque Transmitted?

FIRST Step Consider the formula
𝜏=2Mtbklds
Next Step Substitute values of Variables
𝜏=2224500N*mm5mm35mm45mm
Next Step Convert Units
𝜏=2224.5N*m0.005m0.035m0.045m
Next Step Prepare to Evaluate
𝜏=2224.50.0050.0350.045
Next Step Evaluate
𝜏=57015873.015873Pa
Next Step Convert to Output's Unit
𝜏=57.015873015873N/mm²
LAST Step Rounding Answer
𝜏=57.0159N/mm²

Shear Stress in Key given Torque Transmitted Formula Elements

Variables
Shear Stress in Key
Shear Stress in Key is the force per unit area tending to cause deformation of the key by slippage along a plane or planes parallel to the imposed stress.
Symbol: 𝜏
Measurement: StressUnit: N/mm²
Note: Value should be greater than 0.
Transmitted Torque by Keyed Shaft
Transmitted Torque by Keyed Shaft is defined as the amount of torque or the rotating power transferred from a shaft using a key into it.
Symbol: Mt
Measurement: TorqueUnit: N*mm
Note: Value should be greater than 0.
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.
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.
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.

Other Formulas to find Shear Stress in Key

​Go Shear Stress in given Force on Key
𝜏=Fbkl

Other formulas in Design of Square and Flat Keys category

​Go Force on Key
F=2Mtds
​Go Torque Transmitted by Keyed Shaft given Force on Keys
Mt=Fds2
​Go Shaft Diameter given Force on Key
ds=2MtF
​Go Width of Key given Shear Stress in Key
bk=F𝜏l

How to Evaluate Shear Stress in Key given Torque Transmitted?

Shear Stress in Key given Torque Transmitted evaluator uses Shear Stress = 2*Transmitted Torque by Keyed Shaft/(Width of Key*Length of Key*Diameter of Shaft using Key) to evaluate the Shear Stress in Key, Shear Stress in Key given Torque Transmitted formula is defined as a measure of the internal forces acting within a key when torque is applied. It helps in assessing the strength and stability of mechanical connections, ensuring that the key can withstand operational loads without failure. Shear Stress in Key is denoted by 𝜏 symbol.

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

FAQs on Shear Stress in Key given Torque Transmitted

What is the formula to find Shear Stress in Key given Torque Transmitted?
The formula of Shear Stress in Key given Torque Transmitted is expressed as Shear Stress = 2*Transmitted Torque by Keyed Shaft/(Width of Key*Length of Key*Diameter of Shaft using Key). Here is an example- 6.4E-5 = 2*224.5/(0.005*0.035*0.04498998).
How to calculate Shear Stress in Key given Torque Transmitted?
With Transmitted Torque by Keyed Shaft (Mt), Width of Key (bk), Length of Key (l) & Diameter of Shaft using Key (ds) we can find Shear Stress in Key given Torque Transmitted using the formula - Shear Stress = 2*Transmitted Torque by Keyed Shaft/(Width of Key*Length of Key*Diameter of Shaft using Key).
What are the other ways to Calculate Shear Stress in Key?
Here are the different ways to Calculate Shear Stress in Key-
  • Shear Stress=Force on Key/(Width of Key*Length of Key)OpenImg
Can the Shear Stress in Key given Torque Transmitted be negative?
No, the Shear Stress in Key given Torque Transmitted, measured in Stress cannot be negative.
Which unit is used to measure Shear Stress in Key given Torque Transmitted?
Shear Stress in Key given Torque Transmitted is usually measured using the Newton per Square Millimeter[N/mm²] for Stress. Pascal[N/mm²], Newton per Square Meter[N/mm²], Kilonewton per Square Meter[N/mm²] are the few other units in which Shear Stress in Key given Torque Transmitted can be measured.
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