Thickness of Oil Film for Shear Force in Journal Bearing Calculator

✖The Viscosity of fluid is a measure of its resistance to deformation at a given rate.ⓘ Viscosity of Fluid [μ]			+10% -10%
✖Shaft Diameter is the diameter of the shaft of the pile.ⓘ Shaft Diameter [D_s]			+10% -10%
✖Mean Speed in RPM is an average of individual vehicle speeds.ⓘ Mean Speed in RPM [N]			+10% -10%
✖Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system.ⓘ Length of Pipe [L]			+10% -10%
✖Shear Force is the force which causes shear deformation to occur in the shear plane.ⓘ Shear Force [F_s]			+10% -10%

✖Thickness of Oil Film refers to the distance or dimension between the surfaces that are separated by a layer of oil.ⓘ Thickness of Oil Film for Shear Force in Journal Bearing [t]

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Formula

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Thickness of Oil Film for Shear Force in Journal Bearing

Formula

t = \frac{μ \cdot π^{2} \cdot {D s}^{2} \cdot N \cdot L}{F s}

Example

14.07361 m = \frac{8.23 N*s/m² \cdot π^{2} \cdot {14.90078 m}^{2} \cdot 1.069076 rev/min \cdot 3 m}{68.5 N}

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Thickness of Oil Film for Shear Force in Journal Bearing Solution

STEP 0: Pre-Calculation Summary

Formula Used

Thickness of Oil Film = (Viscosity of Fluid*pi^2*Shaft Diameter^2*Mean Speed in RPM*Length of Pipe)/(Shear Force)
t = (μ*pi^2*D_s^2*N*L)/(F_s)
This formula uses 1 Constants, 6 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

Thickness of Oil Film - (Measured in Meter) - Thickness of Oil Film refers to the distance or dimension between the surfaces that are separated by a layer of oil.
Viscosity of Fluid - (Measured in Pascal Second) - The Viscosity of fluid is a measure of its resistance to deformation at a given rate.
Shaft Diameter - (Measured in Meter) - Shaft Diameter is the diameter of the shaft of the pile.
Mean Speed in RPM - (Measured in Hertz) - Mean Speed in RPM is an average of individual vehicle speeds.
Length of Pipe - (Measured in Meter) - Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system.
Shear Force - (Measured in Newton) - Shear Force is the force which causes shear deformation to occur in the shear plane.

STEP 1: Convert Input(s) to Base Unit

Viscosity of Fluid: 8.23 Newton Second per Square Meter --> 8.23 Pascal Second (Check conversion here)
Shaft Diameter: 14.90078 Meter --> 14.90078 Meter No Conversion Required
Mean Speed in RPM: 1.069076 Revolution per Minute --> 0.0178179333333333 Hertz (Check conversion here)
Length of Pipe: 3 Meter --> 3 Meter No Conversion Required
Shear Force: 68.5 Newton --> 68.5 Newton No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t = (μ*pi^2*D_s^2*N*L)/(F_s) --> (8.23*pi^2*14.90078^2*0.0178179333333333*3)/(68.5)

Evaluating ... ...

t = 14.0736128178618

STEP 3: Convert Result to Output's Unit

14.0736128178618 Meter --> No Conversion Required

FINAL ANSWER

14.0736128178618 ≈ 14.07361 Meter <-- Thickness of Oil Film

(Calculation completed in 00.004 seconds)

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Home » Physics » Fluid Mechanics » Viscous Flow » Mechanical » Dimensions and Geometry » Thickness of Oil Film for Shear Force in Journal Bearing

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Created by Maiarutselvan V

PSG College of Technology (PSGCT), Coimbatore

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< Dimensions and Geometry Calculators

Length for Pressure Head Loss in Viscous Flow between Two Parallel Plates

Go Length of Pipe = (Density of Liquid*[g]*Loss of Peizometric Head*Thickness of Oil Film^2)/(12*Viscosity of Fluid*Velocity of Fluid)

Length for Difference of Pressure in Viscous Flow between Two Parallel Plates

Go Length of Pipe = (Pressure Difference in Viscous Flow*Thickness of Oil Film^2)/(12*Viscosity of Fluid*Velocity of Fluid)

Diameter of Shaft for Torque Required in Foot-Step Bearing

Go Shaft Diameter = 2*((Torque Exerted on Wheel*Thickness of Oil Film)/(pi^2*Viscosity of Fluid*Mean Speed in RPM))^(1/4)

Diameter of Pipe from Maximum Velocity and Velocity at Any Radius

Go Pipe Diameter = (2*Radius)/sqrt(1-Velocity of Fluid/Maximum Velocity)

Thickness of Oil Film for Shear Force in Journal Bearing Formula

Thickness of Oil Film = (Viscosity of Fluid*pi^2*Shaft Diameter^2*Mean Speed in RPM*Length of Pipe)/(Shear Force)
t = (μ*pi^2*D_s^2*N*L)/(F_s)

What is viscous resistance of journal bearing?

Let us consider that a shaft is rotating in a journal bearing and think that oil is used as a lubricant in order to fill the clearance between the shaft and journal bearing. Therefore oil will offer viscous resistance to the rotating shaft.

What is the relation between viscosity and shear stress?

Shear rate is the velocity of the moving plate divided by the distance between the plates. According to Newton's Law, shear stress is viscosity times shear rate. Therefore, the viscosity is shear stress divided by shear rate.

How to Calculate Thickness of Oil Film for Shear Force in Journal Bearing?

Thickness of Oil Film for Shear Force in Journal Bearing calculator uses Thickness of Oil Film = (Viscosity of Fluid*pi^2*Shaft Diameter^2*Mean Speed in RPM*Length of Pipe)/(Shear Force) to calculate the Thickness of Oil Film, Thickness of Oil Film for Shear Force in Journal Bearing, influenced by shear force, can be determined using empirical relationships that account for factors such as the viscosity of the oil, the applied load or shear force, the speed of rotation, and the dimensions of the bearing surfaces. This calculation ensures that the oil film thickness is sufficient to provide effective lubrication, reduce frictional losses, and maintain proper functioning of the journal bearing under varying operating conditions. Thickness of Oil Film is denoted by t symbol.

How to calculate Thickness of Oil Film for Shear Force in Journal Bearing using this online calculator? To use this online calculator for Thickness of Oil Film for Shear Force in Journal Bearing, enter Viscosity of Fluid (μ), Shaft Diameter (D_s), Mean Speed in RPM (N), Length of Pipe (L) & Shear Force (F_s) and hit the calculate button. Here is how the Thickness of Oil Film for Shear Force in Journal Bearing calculation can be explained with given input values -> 71.0871 = (8.23*pi^2*14.90078^2*0.0178179333333333*3)/(68.5).

FAQ

What is Thickness of Oil Film for Shear Force in Journal Bearing?

Thickness of Oil Film for Shear Force in Journal Bearing, influenced by shear force, can be determined using empirical relationships that account for factors such as the viscosity of the oil, the applied load or shear force, the speed of rotation, and the dimensions of the bearing surfaces. This calculation ensures that the oil film thickness is sufficient to provide effective lubrication, reduce frictional losses, and maintain proper functioning of the journal bearing under varying operating conditions and is represented as t = (μ*pi^2*D_s^2*N*L)/(F_s) or Thickness of Oil Film = (Viscosity of Fluid*pi^2*Shaft Diameter^2*Mean Speed in RPM*Length of Pipe)/(Shear Force). The Viscosity of fluid is a measure of its resistance to deformation at a given rate, Shaft Diameter is the diameter of the shaft of the pile, Mean Speed in RPM is an average of individual vehicle speeds, Length of Pipe refers to the distance between two points along the pipe's axis. It is a fundamental parameter used to describe the size and layout of a piping system & Shear Force is the force which causes shear deformation to occur in the shear plane.

How to calculate Thickness of Oil Film for Shear Force in Journal Bearing?

Thickness of Oil Film for Shear Force in Journal Bearing, influenced by shear force, can be determined using empirical relationships that account for factors such as the viscosity of the oil, the applied load or shear force, the speed of rotation, and the dimensions of the bearing surfaces. This calculation ensures that the oil film thickness is sufficient to provide effective lubrication, reduce frictional losses, and maintain proper functioning of the journal bearing under varying operating conditions is calculated using Thickness of Oil Film = (Viscosity of Fluid*pi^2*Shaft Diameter^2*Mean Speed in RPM*Length of Pipe)/(Shear Force). To calculate Thickness of Oil Film for Shear Force in Journal Bearing, you need Viscosity of Fluid (μ), Shaft Diameter (D_s), Mean Speed in RPM (N), Length of Pipe (L) & Shear Force (F_s). With our tool, you need to enter the respective value for Viscosity of Fluid, Shaft Diameter, Mean Speed in RPM, Length of Pipe & Shear Force 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 Thickness of Oil Film?

In this formula, Thickness of Oil Film uses Viscosity of Fluid, Shaft Diameter, Mean Speed in RPM, Length of Pipe & Shear Force. We can use 2 other way(s) to calculate the same, which is/are as follows -

Thickness of Oil Film = (Viscosity of Fluid*pi*Shaft Diameter*Mean Speed in RPM)/(Shear Stress)
Thickness of Oil Film = (Viscosity of Fluid*pi^2*Mean Speed in RPM*(Shaft Diameter/2)^4)/Torque Exerted on Wheel

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