Bearing Pressure on Piston Pin Bush Calculator

✖Force on piston pin bearing is the force acting onto the bearing used in the assembly of piston pin, piston, and the connecting rod.ⓘ Force on Piston Pin Bearing [P_p]			+10% -10%
✖Inner diameter of bush on piston pin is the internal diameter of the bush used in between the piston pin and the piston pin bearing.ⓘ Inner Diameter of Bush on Piston Pin [d_p]			+10% -10%
✖Length of bush on piston pin is the length of the bush used in between the piston pin and the piston pin bearing.ⓘ Length of Bush on Piston Pin [l_p]			+10% -10%

✖Bearing Pressure of Piston Pin Bush is the bearing pressure at the piston pin bearing of the small end of the connecting rod.ⓘ Bearing Pressure on Piston Pin Bush [p_bp]

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Formula

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Bearing Pressure on Piston Pin Bush

Formula

`("p"_{"b"}"p") = "P"_{"p"}/("d"_{"p"}*"l"_{"p"})`

Example

`"10.76126N/mm²"="27000N"/("38.6mm"*"65mm")`

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Bearing Pressure on Piston Pin Bush Solution

STEP 0: Pre-Calculation Summary

Formula Used

Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin)
p_bp = P_p/(d_p*l_p)
This formula uses 4 Variables

Variables Used

Bearing Pressure of Piston Pin Bush - (Measured in Pascal) - Bearing Pressure of Piston Pin Bush is the bearing pressure at the piston pin bearing of the small end of the connecting rod.
Force on Piston Pin Bearing - (Measured in Newton) - Force on piston pin bearing is the force acting onto the bearing used in the assembly of piston pin, piston, and the connecting rod.
Inner Diameter of Bush on Piston Pin - (Measured in Meter) - Inner diameter of bush on piston pin is the internal diameter of the bush used in between the piston pin and the piston pin bearing.
Length of Bush on Piston Pin - (Measured in Meter) - Length of bush on piston pin is the length of the bush used in between the piston pin and the piston pin bearing.

STEP 1: Convert Input(s) to Base Unit

Force on Piston Pin Bearing: 27000 Newton --> 27000 Newton No Conversion Required
Inner Diameter of Bush on Piston Pin: 38.6 Millimeter --> 0.0386 Meter (Check conversion here)
Length of Bush on Piston Pin: 65 Millimeter --> 0.065 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

p_bp = P_p/(d_p*l_p) --> 27000/(0.0386*0.065)

Evaluating ... ...

p_bp = 10761259.4659227

STEP 3: Convert Result to Output's Unit

10761259.4659227 Pascal -->10.7612594659227 Newton per Square Millimeter (Check conversion here)

FINAL ANSWER

10.7612594659227 ≈ 10.76126 Newton per Square Millimeter <-- Bearing Pressure of Piston Pin Bush

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Connecting Rod » Big and Small End Bearing » Bearing Pressure on Piston Pin Bush

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Shri Govindram Seksaria Institute of Technology and Science (SGSITS ), Indore

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< 12 Big and Small End Bearing Calculators

Bearing Pressure on Piston Pin Bush

Go Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin)

Maximum Force Acting on Piston Pin Bearing given Allowable Bearing Pressure

Go Force on Piston Pin Bearing = Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin*Bearing Pressure of Piston Pin Bush

Bearing Pressure on Crank Pin Bush

Go Bearing Pressure of Crank Pin Bush = Force on Crank Pin Bearing/(Inner Diameter of Bush on Crank Pin*Length of Bush on Crank Pin)

Maximum Force Acting on Crank Pin Bearing given Allowable Bearing Pressure

Go Force on Crank Pin Bearing = Inner Diameter of Bush on Crank Pin*Length of Bush on Crank Pin*Bearing Pressure of Crank Pin Bush

Maximum Force Acting on Piston Pin Bearing

Go Force on Piston Pin Bearing = pi*Inner Diameter of Engine Cylinder^2*Maximum Pressure in Engine Cylinder/4

Mass of Reciprocating Parts in Engine Cylinder

Go Mass of Reciprocating Parts in Engine Cylinder = Mass of Piston Assembly+Mass of Connecting Rod/3

Maximum Height of Connecting Rod at Small End

Go Height of Connecting Rod Section at Small End = 0.9*Height of Connecting Rod at Mid Section

Minimum Height of Connecting Rod at Small End

Go Height of Connecting Rod Section = 0.75*Height of Connecting Rod at Mid Section Small End

Minimum Height of Connecting Rod at Big End

Go Height of Connecting Rod Section at Big End = 1.1*Height of Connecting Rod at Mid Section

Angular Velocity of Crank given Engine Speed in RPM

Go Angular Velocity of Crank = 2*pi*Engine Speed in Rpm/60

Maximum Height of Connecting Rod at Big End

Go Height of Connecting Rod Section = 1.25*Height of Connecting Rod at Mid Section

Crank Radius given Stroke Length of Piston

Go Crank Radius of Engine = Stroke Length/2

Bearing Pressure on Piston Pin Bush Formula

Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin)
p_bp = P_p/(d_p*l_p)

Piston Pin Bearings

The bearings used in connection with most piston pins are of the sleeve bearing or bushing type. These bearings may be further identified according to the location of the piston boss piston pin bearings and the connecting rod piston bearings. The bearings or bushings are made of bronze or similar material. The bore of the bushing is accurately ground in line with the close fit of the piston pin. Most bushings have a number of small grooves cut in their bore for lubrication purposes. Some sleeve bushings have a press-fit, while others are cold shrunk into the bosses. If the piston pin is secured in the bosses of the piston (stationary) or if it floats (full-floating) in both the connecting rod and piston, the piston end of the rod must be fitted with a sleeve bushing. Pistons fitted with semi-floating pins require no bearing at the rod end. Some bearing surfaces are backed with a case-hardened steel sleeve, and the bushing has a shrink-fit in the rod bore.

How to Calculate Bearing Pressure on Piston Pin Bush?

Bearing Pressure on Piston Pin Bush calculator uses Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin) to calculate the Bearing Pressure of Piston Pin Bush, Bearing pressure on piston pin bush is the compressive force acting on the contact area between piston pin and the bush having no relative motion between them. Bearing Pressure of Piston Pin Bush is denoted by p_bp symbol.

How to calculate Bearing Pressure on Piston Pin Bush using this online calculator? To use this online calculator for Bearing Pressure on Piston Pin Bush, enter Force on Piston Pin Bearing (P_p), Inner Diameter of Bush on Piston Pin (d_p) & Length of Bush on Piston Pin (l_p) and hit the calculate button. Here is how the Bearing Pressure on Piston Pin Bush calculation can be explained with given input values -> 1.1E-5 = 27000/(0.0386*0.065).

FAQ

What is Bearing Pressure on Piston Pin Bush?

Bearing pressure on piston pin bush is the compressive force acting on the contact area between piston pin and the bush having no relative motion between them and is represented as p_bp = P_p/(d_p*l_p) or Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin). Force on piston pin bearing is the force acting onto the bearing used in the assembly of piston pin, piston, and the connecting rod, Inner diameter of bush on piston pin is the internal diameter of the bush used in between the piston pin and the piston pin bearing & Length of bush on piston pin is the length of the bush used in between the piston pin and the piston pin bearing.

How to calculate Bearing Pressure on Piston Pin Bush?

Bearing pressure on piston pin bush is the compressive force acting on the contact area between piston pin and the bush having no relative motion between them is calculated using Bearing Pressure of Piston Pin Bush = Force on Piston Pin Bearing/(Inner Diameter of Bush on Piston Pin*Length of Bush on Piston Pin). To calculate Bearing Pressure on Piston Pin Bush, you need Force on Piston Pin Bearing (P_p), Inner Diameter of Bush on Piston Pin (d_p) & Length of Bush on Piston Pin (l_p). With our tool, you need to enter the respective value for Force on Piston Pin Bearing, Inner Diameter of Bush on Piston Pin & Length of Bush on Piston Pin and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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