Diameter of journal at bearing1 of side crankshaft at TDC position Calculator

✖Resultant Reaction on CrankShaft Bearing 1 is the total reaction force on the 1st bearing of the crankshaft.ⓘ Resultant Reaction on CrankShaft Bearing 1 [R₁]			+10% -10%
✖Length of Bearing1 of Crankshaft is the length of the 1st bearing of a crankshaft and this bearing supports the crankshaft.ⓘ Length of Bearing1 of Crankshaft [l₁]			+10% -10%
✖Bearing pressure of journal at bearing 1 is the compressive stress acting on the contact area between journal and the crankshaft.ⓘ Bearing Pressure of Journal at Bearing 1 [pb₂]			+10% -10%

✖Diameter of Journal or Shaft at Bearing 1 is the inner diameter of the journal or outer diameter of the shaft at the 1st bearing of the crankshaft.ⓘ Diameter of journal at bearing1 of side crankshaft at TDC position [d₁]

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Formula

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Diameter of journal at bearing1 of side crankshaft at TDC position

Formula

`"d"_{"1"} = "R"_{"1"}/("l"_{"1"}*"pb"_{"2"})`

Example

`"174.6032mm"="11000N"/("15mm"*"4.2N/mm²")`

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Diameter of journal at bearing1 of side crankshaft at TDC position Solution

STEP 0: Pre-Calculation Summary

Formula Used

Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1)
d₁ = R₁/(l₁*pb₂)
This formula uses 4 Variables

Variables Used

Diameter of Journal or Shaft at Bearing 1 - (Measured in Meter) - Diameter of Journal or Shaft at Bearing 1 is the inner diameter of the journal or outer diameter of the shaft at the 1st bearing of the crankshaft.
Resultant Reaction on CrankShaft Bearing 1 - (Measured in Newton) - Resultant Reaction on CrankShaft Bearing 1 is the total reaction force on the 1st bearing of the crankshaft.
Length of Bearing1 of Crankshaft - (Measured in Meter) - Length of Bearing1 of Crankshaft is the length of the 1st bearing of a crankshaft and this bearing supports the crankshaft.
Bearing Pressure of Journal at Bearing 1 - (Measured in Pascal) - Bearing pressure of journal at bearing 1 is the compressive stress acting on the contact area between journal and the crankshaft.

STEP 1: Convert Input(s) to Base Unit

Resultant Reaction on CrankShaft Bearing 1: 11000 Newton --> 11000 Newton No Conversion Required
Length of Bearing1 of Crankshaft: 15 Millimeter --> 0.015 Meter (Check conversion here)
Bearing Pressure of Journal at Bearing 1: 4.2 Newton per Square Millimeter --> 4200000 Pascal (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

d₁ = R₁/(l₁*pb₂) --> 11000/(0.015*4200000)

Evaluating ... ...

d₁ = 0.174603174603175

STEP 3: Convert Result to Output's Unit

0.174603174603175 Meter -->174.603174603175 Millimeter (Check conversion here)

FINAL ANSWER

174.603174603175 ≈ 174.6032 Millimeter <-- Diameter of Journal or Shaft at Bearing 1

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Crankshaft » Design of Side Crankshaft » Design of Bearing at Top Dead Centre Position » Diameter of journal at bearing1 of side crankshaft at TDC position

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< 14 Design of Bearing at Top Dead Centre Position Calculators

Bending moment at bearing 1 of side crankshaft at TDC position

Go Bending Moment at Bearing1 of Crankshaft = Force on Crank Pin*((0.75*Length of Crank Pin) +(Thickness of Crank Web)+(0.5*Length of Bearing1 of Crankshaft))

Length of crankpin given bending moment at bearing 1 of side crankshaft at TDC position

Go Length of Crank Pin = ((Bending Moment at Bearing1 of Crankshaft/Force on Crank Pin)-(Thickness of Crank Web)-(0.5*Length of Bearing1 of Crankshaft))/0.75

Length of Bearing 1 of Side Crankshaft at TDC Position given Bending Moment at Bearing

Go Length of Bearing1 of Crankshaft = ((Bending Moment at Bearing1 of Crankshaft/Force on Crank Pin)-(0.75*Length of Crank Pin)-(Thickness of Crank Web))/0.5

Overhang Distance of piston force from Bearing 1 of side crankshaft at TDC position

Go Overhang Distance of Piston Force from Bearing1 = (Vertical Reaction at Bearing 2 due to Crankpin*Distance Between Bearing1&2 of Side Crankshaft)/Force on Crank Pin

Bearing pressure at bearing1 of side crankshaft at TDC position

Go Bearing Pressure of Journal at Bearing 1 = (Resultant Reaction on CrankShaft Bearing 1)/(Diameter of Journal or Shaft at Bearing 1*Length of Bearing1 of Crankshaft)

Diameter of journal at bearing1 of side crankshaft at TDC position

Go Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1)

Length of bearing1 of side crankshaft at TDC position

Go Length of Bearing1 of Crankshaft = Resultant Reaction on CrankShaft Bearing 1/(Bearing Pressure of Journal at Bearing 1*Diameter of Journal or Shaft at Bearing 1)

Diameter of shaft at bearing1 of side crankshaft at TDC position

Go Diameter of Journal or Shaft at Bearing 1 = ( (32*Bending Moment at Bearing1 of Crankshaft)/(pi*Bending Stress at Bearing1 of Crankshaft))^(1/3)

Bending stress in shaft at bearing1 of side crankshaft at TDC position

Go Bending Stress at Bearing1 of Crankshaft = (32*Bending Moment at Bearing1 of Crankshaft)/(pi*Diameter of Journal or Shaft at Bearing 1^3)

Bending moment in shaft at bearing1 of side crankshaft at TDC position

Go Bending Moment at Bearing1 of Crankshaft = (Bending Stress at Bearing1 of Crankshaft*pi*Diameter of Journal or Shaft at Bearing 1^3)/32

Minimum length of Bearing 1 of side crankshaft at TDC position given crankpin diameter

Go Length of Bearing1 of Crankshaft = 1.5*Diameter of Crank Pin

Maximum length of Bearing 1 of side crankshaft at TDC position given crankpin diameter

Go Length of Bearing1 of Crankshaft = 2*Diameter of Crank Pin

Minimum thickness of crankweb given crankpin diameter

Go Thickness of Crank Web = 0.45*Diameter of Crank Pin

Maximum thickness of crankweb given crankpin diameter

Go Thickness of Crank Web = 0.75*Diameter of Crank Pin

Diameter of journal at bearing1 of side crankshaft at TDC position Formula

Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1)
d₁ = R₁/(l₁*pb₂)

Some types of Bearings

1. Deep-Groove Ball Bearings
2. Angular Contact Ball Bearings
3. Self-Aligning Ball Bearings
4. Thrust Ball Bearings
5. Spherical Roller Bearings
6. Cylindrical Roller Bearings
7. Tapered Roller Bearings
8. Needle Roller Bearings

Bearing Strength

In essence, bearing strength is the maximum stress load that the unit can “bear” or hold before the structure fails. But bearing strength can also be measured in terms of tensile, compression, and flexural strength, plus bearing hardness.

How to Calculate Diameter of journal at bearing1 of side crankshaft at TDC position?

Diameter of journal at bearing1 of side crankshaft at TDC position calculator uses Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1) to calculate the Diameter of Journal or Shaft at Bearing 1, Diameter of journal at bearing1 of side crankshaft at TDC position is the diameter of the journal at bearing 1 of the side crankshaft designed for at TDC position, or the outer diameter of the crankshaft below this bearing. Diameter of Journal or Shaft at Bearing 1 is denoted by d₁ symbol.

How to calculate Diameter of journal at bearing1 of side crankshaft at TDC position using this online calculator? To use this online calculator for Diameter of journal at bearing1 of side crankshaft at TDC position, enter Resultant Reaction on CrankShaft Bearing 1 (R₁), Length of Bearing1 of Crankshaft (l₁) & Bearing Pressure of Journal at Bearing 1 (pb₂) and hit the calculate button. Here is how the Diameter of journal at bearing1 of side crankshaft at TDC position calculation can be explained with given input values -> 174603.2 = 11000/(0.015*4200000).

FAQ

What is Diameter of journal at bearing1 of side crankshaft at TDC position?

Diameter of journal at bearing1 of side crankshaft at TDC position is the diameter of the journal at bearing 1 of the side crankshaft designed for at TDC position, or the outer diameter of the crankshaft below this bearing and is represented as d₁ = R₁/(l₁*pb₂) or Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1). Resultant Reaction on CrankShaft Bearing 1 is the total reaction force on the 1st bearing of the crankshaft, Length of Bearing1 of Crankshaft is the length of the 1st bearing of a crankshaft and this bearing supports the crankshaft & Bearing pressure of journal at bearing 1 is the compressive stress acting on the contact area between journal and the crankshaft.

How to calculate Diameter of journal at bearing1 of side crankshaft at TDC position?

Diameter of journal at bearing1 of side crankshaft at TDC position is the diameter of the journal at bearing 1 of the side crankshaft designed for at TDC position, or the outer diameter of the crankshaft below this bearing is calculated using Diameter of Journal or Shaft at Bearing 1 = Resultant Reaction on CrankShaft Bearing 1/(Length of Bearing1 of Crankshaft*Bearing Pressure of Journal at Bearing 1). To calculate Diameter of journal at bearing1 of side crankshaft at TDC position, you need Resultant Reaction on CrankShaft Bearing 1 (R₁), Length of Bearing1 of Crankshaft (l₁) & Bearing Pressure of Journal at Bearing 1 (pb₂). With our tool, you need to enter the respective value for Resultant Reaction on CrankShaft Bearing 1, Length of Bearing1 of Crankshaft & Bearing Pressure of Journal at Bearing 1 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 Diameter of Journal or Shaft at Bearing 1?

In this formula, Diameter of Journal or Shaft at Bearing 1 uses Resultant Reaction on CrankShaft Bearing 1, Length of Bearing1 of Crankshaft & Bearing Pressure of Journal at Bearing 1. We can use 1 other way(s) to calculate the same, which is/are as follows -

Diameter of Journal or Shaft at Bearing 1 = ( (32*Bending Moment at Bearing1 of Crankshaft)/(pi*Bending Stress at Bearing1 of Crankshaft))^(1/3)

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