Parul Keshav
National Institute of Technology (NIT), Srinagar
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Kethavath Srinath
Osmania University (OU), Hyderabad
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11 Other formulas that you can solve using the same Inputs

Core Diameter of Screw When Unit Bearing Pressure is Given
Core Diameter=sqrt((Nominal Diameter)^2-(4*Force/(bearing pressure*pi*number of thread in contact with nut))) GO
Number of Threads in Engagement With Nut When Unit Bearing Pressure is Given
Number of Engaged Threads=4*Axial Load/((pi*Unit Bearing Pressure*((Nominal Diameter^2)-(Core Diameter^2)))) GO
Unit Bearing Pressure for a Thread
Unit Bearing Pressure=4*Axial Load/(pi*Number of Engaged Threads*((Nominal Diameter^2)-(Core Diameter^2))) GO
Axial Load When Unit Bearing Pressure is Given
Axial Load=pi*Number of Engaged Threads*Unit Bearing Pressure*((Nominal Diameter^2)-(Core Diameter^2))/4 GO
Number of Threads in Engagement With Nut When Transverse Shear Stress at Root of Nut is Given
Number of Engaged Threads=Axial Load/(pi*Nominal Diameter*Transverse shear stress*thread thickness) GO
Thread Thickness at Root of Nut When Transverse Shear Stress at Root of Nut is Given
thread thickness=Axial Load/(pi*Nominal Diameter*Number of Engaged Threads*Transverse shear stress) GO
Transverse Shear Stress at Root of the Nut
Transverse shear stress=Axial Load/(pi*Nominal Diameter*thread thickness*Number of Engaged Threads) GO
Axial Load When Transverse Shear Stress at Root of Nut is Given
Axial Load=pi*Transverse shear stress*thread thickness*Nominal Diameter*Number of Engaged Threads GO
Bearing Area Between Screw and Nut for one Thread
Bearing Area Between Screw and Nut=pi*((Nominal Diameter^2)-(Core Diameter^2))/4 GO
Core Diameter of Power Screw
Core Diameter=Nominal Diameter-Pitch GO
Height of Standard Nut
Height of Nut =0.8*Nominal Diameter GO

2 Other formulas that calculate the same Output

Pre-load When Amount of Compression in the Parts Joined by a Bolt is Given
pre-load=Amount of compression*Combined stiffness GO
Pre-load When Elongation of the Bolt is Given
pre-load=elongation of bolt*stiffness of the bolt GO

Pre-load When Wrench Torque is Given Formula

pre-load=wrench torque/(0.2*Nominal Diameter)
P<sub>i=M<sub>t/(0.2*d)
More formulas
Primary Shear Force of Eccentrically Loaded Bolted Connection GO
Imaginary Force at Center of Gravity When Primary Shear Force is Given GO
Number of Bolts When Primary Shear Force is Given GO
Wrench Torque Required to Create the Required Pre-Load GO
Nominal Diameter When Wrench Torque is Given GO
Stiffness of the Bolt GO
Nominal Diameter of the Bolt When Stiffness of the Bolt is Given GO
Thickness of the Parts Held Together by the Bolt When Stiffness of the Bolt is Given GO
Young's Modulus of the Bolt When Stiffness of the Bolt is Given GO
Elongation of the Bolt Under the Action of Pre-Load GO
Amount of Compression in the Parts Joined by the Bolt GO
Pre-load When Elongation of the Bolt is Given GO
Pre-load When Amount of Compression in the Parts Joined by a Bolt is Given GO
The Resultant Load on the Bolt GO

What is pre-load in wrench torque?

Preload tension is the amount of tension applied to the bolt by a device like a torque wrench or spanner that tightens the bolt into place before the load it will eventually support is added.

How to Calculate Pre-load When Wrench Torque is Given?

Pre-load When Wrench Torque is Given calculator uses pre-load=wrench torque/(0.2*Nominal Diameter) to calculate the pre-load, Pre-load When Wrench Torque is Given is defined as the amount of tension applied to the bolt by a device like a torque wrench or spanner that tightens the bolt. pre-load and is denoted by Pi symbol.

How to calculate Pre-load When Wrench Torque is Given using this online calculator? To use this online calculator for Pre-load When Wrench Torque is Given, enter wrench torque (Mt) and Nominal Diameter (d) and hit the calculate button. Here is how the Pre-load When Wrench Torque is Given calculation can be explained with given input values -> 500 = 1/(0.2*0.01).

FAQ

What is Pre-load When Wrench Torque is Given?
Pre-load When Wrench Torque is Given is defined as the amount of tension applied to the bolt by a device like a torque wrench or spanner that tightens the bolt and is represented as Pi=Mt/(0.2*d) or pre-load=wrench torque/(0.2*Nominal Diameter). wrench torque is defined as the torque recquired to create a load on fastener such as a nut, bolt, or lag screw and Nominal Diameter is defined as the largest diameter of the screw .It is also called major diameter.
How to calculate Pre-load When Wrench Torque is Given?
Pre-load When Wrench Torque is Given is defined as the amount of tension applied to the bolt by a device like a torque wrench or spanner that tightens the bolt is calculated using pre-load=wrench torque/(0.2*Nominal Diameter). To calculate Pre-load When Wrench Torque is Given, you need wrench torque (Mt) and Nominal Diameter (d). With our tool, you need to enter the respective value for wrench torque and Nominal Diameter and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
How many ways are there to calculate pre-load?
In this formula, pre-load uses wrench torque and Nominal Diameter. We can use 2 other way(s) to calculate the same, which is/are as follows -
  • pre-load=elongation of bolt*stiffness of the bolt
  • pre-load=Amount of compression*Combined stiffness
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