Minimum Film Thickness given Radius of Bearing Calculator

✖The Radius of Bearing is the sum of the radius of the journal and radial clearance of a bearing.ⓘ Radius of Bearing [R]			+10% -10%
✖Eccentricity in bearing is the displacement of the journal from the bearing.ⓘ Eccentricity in bearing [e]			+10% -10%
✖The Radius of Journal is the radius of the journal (which rotates freely in a supporting metal sleeve or shell).ⓘ Radius of Journal [r]			+10% -10%

✖Minimum film thickness is the lowest amount of the thickness of the oil film formed inside the sliding bearing.ⓘ Minimum Film Thickness given Radius of Bearing [h_°]

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Formula

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Minimum Film Thickness given Radius of Bearing

Formula

`"h"_{"°"} = "R"-("e"+"r")`

Example

`"0.489mm"="26mm"-("0.011mm"+"25.5mm")`

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Minimum Film Thickness given Radius of Bearing Solution

STEP 0: Pre-Calculation Summary

Formula Used

Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal)
h_° = R-(e+r)
This formula uses 4 Variables

Variables Used

Minimum Film Thickness - (Measured in Meter) - Minimum film thickness is the lowest amount of the thickness of the oil film formed inside the sliding bearing.
Radius of Bearing - (Measured in Meter) - The Radius of Bearing is the sum of the radius of the journal and radial clearance of a bearing.
Eccentricity in bearing - (Measured in Meter) - Eccentricity in bearing is the displacement of the journal from the bearing.
Radius of Journal - (Measured in Meter) - The Radius of Journal is the radius of the journal (which rotates freely in a supporting metal sleeve or shell).

STEP 1: Convert Input(s) to Base Unit

Radius of Bearing: 26 Millimeter --> 0.026 Meter (Check conversion here)
Eccentricity in bearing: 0.011 Millimeter --> 1.1E-05 Meter (Check conversion here)
Radius of Journal: 25.5 Millimeter --> 0.0255 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

h_° = R-(e+r) --> 0.026-(1.1E-05+0.0255)

Evaluating ... ...

h_° = 0.000489

STEP 3: Convert Result to Output's Unit

0.000489 Meter -->0.489 Millimeter (Check conversion here)

FINAL ANSWER

0.489 Millimeter <-- Minimum Film Thickness

(Calculation completed in 00.004 seconds)

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Created by Vaibhav Malani

National Institute of Technology (NIT), Tiruchirapalli

Vaibhav Malani has created this Calculator and 600+ more calculators!

Verified by Anshika Arya

National Institute Of Technology (NIT), Hamirpur

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< 11 Film Thickness Calculators

Fluid Film Thickness in Terms of Flow of Lubricant

Go Oil film thickness = (Length of slot in direction of flow*12*Dynamic Viscosity of Lubricant*Flow of lubricant from slot/(Breadth of slot for oil flow*Pressure difference between slot sides))^(1/3)

Film Thickness in Terms of Flow Coefficient and Flow of Lubricant

Go Oil film thickness = (Flow of Lubricant*Total Projected Area of Bearing Pad*Dynamic Viscosity of Lubricant/(Load Acting on Sliding Bearing*Flow Coefficient))^(1/3)

Film Thickness in Terms of Absolute Viscosity and Tangential Force

Go Oil film thickness = Dynamic viscosity of oil*Area of moving plate on oil*Velocity of Moving Plate on Oil/Tangential force on moving plate

Eccentricity of Bearing in Terms of Minimum Film Thickness

Go Eccentricity in bearing = Radius of Bearing-(Minimum Film Thickness+Radius of Journal)

Minimum Film Thickness given Radius of Bearing

Go Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal)

Eccentricity Ratio in Terms of Minimum Film Thickness of Bearing

Go Eccentricity Ratio of Journal Bearing = 1-(Minimum Film Thickness/Radial clearance for bearing)

Minimum Film Thickness of bearing in Terms of Eccentricity Ratio

Go Minimum Film Thickness = Radial clearance for bearing*(1-Eccentricity Ratio of Journal Bearing)

Minimum Film Thickness in Terms of Minimum Film Thickness Variable of Bearing

Go Minimum Film Thickness = Minimum Film Thickness Variable*Radial clearance for bearing

Minimum Film Thickness Variable of Bearing

Go Minimum Film Thickness Variable = Minimum Film Thickness/Radial clearance for bearing

Eccentricity Ratio of Bearing in Terms of Minimum Film Thickness Variable

Go Eccentricity Ratio of Journal Bearing = 1-Minimum Film Thickness Variable

Minimum Film Thickness Variable of Bearing in Terms of Eccentricity Ratio

Go Minimum Film Thickness Variable = 1-Eccentricity Ratio of Journal Bearing

Minimum Film Thickness given Radius of Bearing Formula

Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal)
h_° = R-(e+r)

What is Sliding Contact Bearing?

The sliding contact bearings in which the sliding action is along the circumference of a circle or an arc of a circle and carrying radial loads are known as journal or sleeve bearings.

How to Calculate Minimum Film Thickness given Radius of Bearing?

Minimum Film Thickness given Radius of Bearing calculator uses Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal) to calculate the Minimum Film Thickness, The Minimum Film Thickness given Radius of Bearing formula is defined as the difference between radius of bearing and the sum of eccentricity and radius of journal. Minimum Film Thickness is denoted by h_° symbol.

How to calculate Minimum Film Thickness given Radius of Bearing using this online calculator? To use this online calculator for Minimum Film Thickness given Radius of Bearing, enter Radius of Bearing (R), Eccentricity in bearing (e) & Radius of Journal (r) and hit the calculate button. Here is how the Minimum Film Thickness given Radius of Bearing calculation can be explained with given input values -> 489 = 0.026-(1.1E-05+0.0255).

FAQ

What is Minimum Film Thickness given Radius of Bearing?

The Minimum Film Thickness given Radius of Bearing formula is defined as the difference between radius of bearing and the sum of eccentricity and radius of journal and is represented as h_° = R-(e+r) or Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal). The Radius of Bearing is the sum of the radius of the journal and radial clearance of a bearing, Eccentricity in bearing is the displacement of the journal from the bearing & The Radius of Journal is the radius of the journal (which rotates freely in a supporting metal sleeve or shell).

How to calculate Minimum Film Thickness given Radius of Bearing?

The Minimum Film Thickness given Radius of Bearing formula is defined as the difference between radius of bearing and the sum of eccentricity and radius of journal is calculated using Minimum Film Thickness = Radius of Bearing-(Eccentricity in bearing+Radius of Journal). To calculate Minimum Film Thickness given Radius of Bearing, you need Radius of Bearing (R), Eccentricity in bearing (e) & Radius of Journal (r). With our tool, you need to enter the respective value for Radius of Bearing, Eccentricity in bearing & Radius of Journal 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 Minimum Film Thickness?

In this formula, Minimum Film Thickness uses Radius of Bearing, Eccentricity in bearing & Radius of Journal. We can use 2 other way(s) to calculate the same, which is/are as follows -

Minimum Film Thickness = Minimum Film Thickness Variable*Radial clearance for bearing
Minimum Film Thickness = Radial clearance for bearing*(1-Eccentricity Ratio of Journal Bearing)

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