Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin Calculator

✖Length of Fulcrum Pin is the total length of the pin used at the fulcrum joint.ⓘ Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin [l₁]

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Formula

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Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin

Formula

`"l"_{"1"} = "d"_{"1"}*1.25`

Example

`"31.25mm"="25mm"*1.25`

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Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin Solution

STEP 0: Pre-Calculation Summary

Formula Used

Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25
l₁ = d₁*1.25
This formula uses 2 Variables

Variables Used

Length of Fulcrum Pin - (Measured in Meter) - Length of Fulcrum Pin is the total length of the pin used at the fulcrum joint.
Diameter of Fulcrum Pin - (Measured in Meter) - Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.

STEP 1: Convert Input(s) to Base Unit

Diameter of Fulcrum Pin: 25 Millimeter --> 0.025 Meter (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

l₁ = d₁*1.25 --> 0.025*1.25

Evaluating ... ...

l₁ = 0.03125

STEP 3: Convert Result to Output's Unit

0.03125 Meter -->31.25 Millimeter (Check conversion here)

FINAL ANSWER

31.25 Millimeter <-- Length of Fulcrum Pin

(Calculation completed in 00.004 seconds)

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Home » Physics » IC Engine » Design of IC Engine Components » Rocker Arm » Design of Fulcrum Pin » Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin

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Created by Saurabh Patil

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

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< 17 Design of Fulcrum Pin Calculators

Length of Fulcrum Pin of Rocker Arm considering Double Shear Failure of Pin

Go Length of Fulcrum Pin = 1.25*sqrt((2*sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms)))/(pi*Shear Stress in Fulcrum Pin))

Diameter of Fulcrum Pin of Rocker Arm Considering Double Shear Failure of Pin

Go Diameter of Fulcrum Pin = sqrt((2*sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms)))/(pi*Shear Stress in Fulcrum Pin))

Shear Stress in Fulcrum Pin of Rocker Arm

Go Shear Stress in Fulcrum Pin = (2*(sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms)))/(pi*Diameter of Fulcrum Pin^2))

Angle between Two Arms of Rocker Arm

Go Angle Between Rocker Arms = pi-arccos(-(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-Force at Fulcrum Pin^2)/(2*Total Force on Rocker Arm of Exhaust Valve*Force on Roller Pin))

Reaction at Fulcrum Pin of Rocker Arm

Go Force at Fulcrum Pin = sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms))

Reaction at Fulcrum Pin of Rocker Arm for Equal Arm Lengths

Go Force at Fulcrum Pin = Total Force on Rocker Arm of Exhaust Valve*sqrt(2*(1-cos(Angle Between Rocker Arms)))

Length of Fulcrum Pin of Rocker Arm given Reaction at Pin

Go Length of Fulcrum Pin = 1.25*sqrt((2*Force at Fulcrum Pin)/(pi*Shear Stress in Fulcrum Pin))

Diameter of Fulcrum Pin of Rocker Arm given Reaction at Pin

Go Diameter of Fulcrum Pin = sqrt((2*Force at Fulcrum Pin)/(pi*Shear Stress in Fulcrum Pin))

Bearing Pressure at Fulcrum Pin of Rocker Arm

Go Bearing Pressure for Fulcrum Pin = (Force at Fulcrum Pin)/(Diameter of Fulcrum Pin*Length of Fulcrum Pin)

Diameter of Fulcrum Pin of Rocker Arm given Bearing Pressure

Go Diameter of Fulcrum Pin = Force at Fulcrum Pin/(Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin)

Length of Fulcrum Pin of Rocker Arm given Bearing Pressure

Go Length of Fulcrum Pin = Force at Fulcrum Pin/(Diameter of Fulcrum Pin*Bearing Pressure for Fulcrum Pin)

Reaction at Fulcrum Pin of Rocker Arm Considering bearing Pressure

Go Force at Fulcrum Pin = Diameter of Fulcrum Pin*Length of Fulcrum Pin*Bearing Pressure for Fulcrum Pin

Shear Stress in Fulcrum Pin of Rocker Arm given Reaction at Pin

Go Shear Stress in Fulcrum Pin = (2*Force at Fulcrum Pin)/(pi*Diameter of Fulcrum Pin^2)

Reaction at Fulcrum Pin of Rocker Arm considering Double Shear Failure of Pin

Go Force at Fulcrum Pin = (Shear Stress in Fulcrum Pin*pi*Diameter of Fulcrum Pin^2)/2

Outside Diameter of Boss of Rocker Arm at Fulcrum Pin

Go Outside Diameter of Boss of Rocker Arm = 2*Diameter of Fulcrum Pin

Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin

Go Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25

Diameter of Fulcrum Pin of Rocker Arm given Length of Fulcrum Pin

Go Diameter of Fulcrum Pin = Length of Fulcrum Pin/1.25

Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin Formula

Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25
l₁ = d₁*1.25

Function of a rocker arm in IC Engine

The basic function of the rocker arm is to open or close the inlet or exhaust valve with respect to the motion of the cam and follower. The force required to operate the inlet valve is comparatively less. However, it is usual practice to make rocker arms for inlet and exhaust valves identical.

How to Calculate Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin?

Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin calculator uses Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25 to calculate the Length of Fulcrum Pin, The Length of fulcrum pin of rocker arm given diameter of fulcrum pin is the total length of the fulcrum pin used at the fulcrum joint of the two rocker arms. Length of Fulcrum Pin is denoted by l₁ symbol.

How to calculate Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin using this online calculator? To use this online calculator for Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin, enter Diameter of Fulcrum Pin (d₁) and hit the calculate button. Here is how the Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin calculation can be explained with given input values -> 31250 = 0.025*1.25.

FAQ

What is Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin?

The Length of fulcrum pin of rocker arm given diameter of fulcrum pin is the total length of the fulcrum pin used at the fulcrum joint of the two rocker arms and is represented as l₁ = d₁*1.25 or Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25. Diameter of Fulcrum Pin is the diameter of the pin used at the fulcrum joint.

How to calculate Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin?

The Length of fulcrum pin of rocker arm given diameter of fulcrum pin is the total length of the fulcrum pin used at the fulcrum joint of the two rocker arms is calculated using Length of Fulcrum Pin = Diameter of Fulcrum Pin*1.25. To calculate Length of Fulcrum Pin of Rocker Arm given Diameter of Fulcrum Pin, you need Diameter of Fulcrum Pin (d₁). With our tool, you need to enter the respective value for Diameter of Fulcrum Pin 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 Length of Fulcrum Pin?

In this formula, Length of Fulcrum Pin uses Diameter of Fulcrum Pin. We can use 3 other way(s) to calculate the same, which is/are as follows -

Length of Fulcrum Pin = Force at Fulcrum Pin/(Diameter of Fulcrum Pin*Bearing Pressure for Fulcrum Pin)
Length of Fulcrum Pin = 1.25*sqrt((2*sqrt(Total Force on Rocker Arm of Exhaust Valve^2+Force on Roller Pin^2-2*Force on Roller Pin*Total Force on Rocker Arm of Exhaust Valve*cos(Angle Between Rocker Arms)))/(pi*Shear Stress in Fulcrum Pin))
Length of Fulcrum Pin = 1.25*sqrt((2*Force at Fulcrum Pin)/(pi*Shear Stress in Fulcrum Pin))

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