Bolt Circle Diameter Formula

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Bolt Circle Diameter is the diameter of the circle on which the holes will be evenly distributed. Check FAQs
B=Go+(2db)+12
B - Bolt Circle Diameter?Go - Outside Diameter of Gasket?db - Nominal Bolt Diameter?

Bolt Circle Diameter Example

With values
With units
Only example

Here is how the Bolt Circle Diameter equation looks like with Values.

Here is how the Bolt Circle Diameter equation looks like with Units.

Here is how the Bolt Circle Diameter equation looks like.

4.112Edit=1.1Edit+(21.5Edit)+12
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Bolt Circle Diameter Solution

Follow our step by step solution on how to calculate Bolt Circle Diameter?

FIRST Step Consider the formula
B=Go+(2db)+12
Next Step Substitute values of Variables
B=1.1m+(21.5m)+12
Next Step Convert Units
B=1100mm+(21500mm)+12
Next Step Prepare to Evaluate
B=1100+(21500)+12
LAST Step Evaluate
B=4.112m

Bolt Circle Diameter Formula Elements

Variables
Bolt Circle Diameter
Bolt Circle Diameter is the diameter of the circle on which the holes will be evenly distributed.
Symbol: B
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Outside Diameter of Gasket
Outside Diameter of Gasket is in which a mechanical seal which fills the space between two or more mating surfaces, generally to prevent leakage.
Symbol: Go
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Nominal Bolt Diameter
Nominal Bolt Diameter is the diameter equal to the external diameter of the threads or the overall diameter of the part.
Symbol: db
Measurement: LengthUnit: m
Note: Value should be greater than 0.

Other formulas in Design of Pressure Vessel Subjected to Internal Pressure category

​Go Circumferential Stress (Hoop Stress) in Cylinderical Shell
σc=PInternalD2tc
​Go Longitudinal Stress (Axial Stress) in Cylindrical Shell
σCylindricalShell=PLSD4tc
​Go Hoop Strain
E=l2-l0l0
​Go Outside Diameter of Flange using Bolt Diameter
Dfo=B+2db+12

How to Evaluate Bolt Circle Diameter?

Bolt Circle Diameter evaluator uses Bolt Circle Diameter = Outside Diameter of Gasket+(2*Nominal Bolt Diameter)+12 to evaluate the Bolt Circle Diameter, Bolt Circle Diameter is the diameter of the circle that goes through the center of all of the bolts on a chainring. Bolt Circle Diameter is denoted by B symbol.

How to evaluate Bolt Circle Diameter using this online evaluator? To use this online evaluator for Bolt Circle Diameter, enter Outside Diameter of Gasket (Go) & Nominal Bolt Diameter (db) and hit the calculate button.

FAQs on Bolt Circle Diameter

What is the formula to find Bolt Circle Diameter?
The formula of Bolt Circle Diameter is expressed as Bolt Circle Diameter = Outside Diameter of Gasket+(2*Nominal Bolt Diameter)+12. Here is an example- 4.112 = 1.1+(2*1.5)+12.
How to calculate Bolt Circle Diameter?
With Outside Diameter of Gasket (Go) & Nominal Bolt Diameter (db) we can find Bolt Circle Diameter using the formula - Bolt Circle Diameter = Outside Diameter of Gasket+(2*Nominal Bolt Diameter)+12.
Can the Bolt Circle Diameter be negative?
No, the Bolt Circle Diameter, measured in Length cannot be negative.
Which unit is used to measure Bolt Circle Diameter?
Bolt Circle Diameter is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Bolt Circle Diameter can be measured.
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