Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web Solution

STEP 0: Pre-Calculation Summary
Formula Used
Diameter of Crank Pin = Thickness of Crank Web/0.7
dpin = t/0.7
This formula uses 2 Variables
Variables Used
Diameter of Crank Pin - (Measured in Meter) - Diameter of Crank Pin is the diameter of the crank pin used in connecting the connecting rod with the crank.
Thickness of Crank Web - (Measured in Meter) - Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis.
STEP 1: Convert Input(s) to Base Unit
Thickness of Crank Web: 33.6 Millimeter --> 0.0336 Meter (Check conversion ​here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
dpin = t/0.7 --> 0.0336/0.7
Evaluating ... ...
dpin = 0.048
STEP 3: Convert Result to Output's Unit
0.048 Meter -->48 Millimeter (Check conversion ​here)
FINAL ANSWER
48 Millimeter <-- Diameter of Crank Pin
(Calculation completed in 00.020 seconds)

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Design of Crank Pin at Top Dead Centre Position Calculators

Bending stress in crank pin of centre crankshaft at TDC position given diameter of crank pin
​ LaTeX ​ Go Bending Stress in Crank Pin = (32*Bending Moment at Central Plane of Crank Pin)/(pi*Diameter of Crank Pin^3)
Bending Moment at centre plane of crank pin of centre crankshaft at TDC position
​ LaTeX ​ Go Bending Moment at Central Plane of Crank Pin = Vertical Reaction at Bearing Due to Crankpin*Crankshaft Bearing Gap From Crank Pin Centre
Diameter of crank pin of centre crankshaft at TDC position given allowable bearing pressure
​ LaTeX ​ Go Diameter of Crank Pin = (Force on Crank Pin)/(Bearing Pressure in Crank Pin*Length of Crank Pin)
Length of crank pin of centre crankshaft at TDC position given allowable bearing pressure
​ LaTeX ​ Go Length of Crank Pin = (Force on Crank Pin)/(Diameter of Crank Pin*Bearing Pressure in Crank Pin)

Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web Formula

​LaTeX ​Go
Diameter of Crank Pin = Thickness of Crank Web/0.7
dpin = t/0.7

What is a Crankshaft?

The crankshaft of an engine is mechanical equipment whose main function is to convert the Linear motion of the Piston to Rotational Motion. The reciprocating motion of the piston is transferred to the crankshaft through Connecting Rod. A crankshaft has crankpins, crank webs, balancing weights, and main journals. The big end of the connecting rod is connected to the crankpin of the crankshaft. In a 4 stroke engine, one complete rotation of the crankshaft takes place in two strokes of the piston.
A crankshaft has the following main parts :
1. Crankpin
2. Main Journals
3. Crank Web
4. Counterweights
5. Thrust Washers
6. Oil passage & Oil Seals
7. Flywheel Mounting Flange

What is a crank arm or crank web?

The crank arm is also known as web or crank web. The Crank web is one of the most important parts of a crankshaft. The main purpose of a crank arm or crank web is to connect the crankshaft to the main bearing journals. A crank web is positioned opposite to the crank pin.

How to Calculate Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web?

Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web calculator uses Diameter of Crank Pin = Thickness of Crank Web/0.7 to calculate the Diameter of Crank Pin, Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web is the external diameter of the crankpin of the center crankshaft at TDC position which is used in the assembly of connecting rod with the crank, designed for when the crank is at the top dead center position and subjected to maximum bending moment and no torsional moment. Diameter of Crank Pin is denoted by dpin symbol.

How to calculate Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web using this online calculator? To use this online calculator for Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web, enter Thickness of Crank Web (t) and hit the calculate button. Here is how the Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web calculation can be explained with given input values -> 57142.86 = 0.0336/0.7.

FAQ

What is Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web?
Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web is the external diameter of the crankpin of the center crankshaft at TDC position which is used in the assembly of connecting rod with the crank, designed for when the crank is at the top dead center position and subjected to maximum bending moment and no torsional moment and is represented as dpin = t/0.7 or Diameter of Crank Pin = Thickness of Crank Web/0.7. Thickness of Crank Web is defined as the thickness of the crank web (the portion of a crank between the crankpin and the shaft) measured parallel to the crankpin longitudinal axis.
How to calculate Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web?
Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web is the external diameter of the crankpin of the center crankshaft at TDC position which is used in the assembly of connecting rod with the crank, designed for when the crank is at the top dead center position and subjected to maximum bending moment and no torsional moment is calculated using Diameter of Crank Pin = Thickness of Crank Web/0.7. To calculate Diameter of crank pin of centre crankshaft at TDC position given thickness of crank web, you need Thickness of Crank Web (t). With our tool, you need to enter the respective value for Thickness of Crank Web 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 Crank Pin?
In this formula, Diameter of Crank Pin uses Thickness of Crank Web. We can use 3 other way(s) to calculate the same, which is/are as follows -
  • Diameter of Crank Pin = (Force on Crank Pin)/(Bearing Pressure in Crank Pin*Length of Crank Pin)
  • Diameter of Crank Pin = Width of Crank Web/1.14
  • Diameter of Crank Pin = ((32*Bending Moment at Central Plane of Crank Pin)/(pi*Bending Stress in Crank Pin))^(1/3)
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