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Minimum Bolt Spacing Formula

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Minimum Bolt Spacing is Minimum pitch (distance between centres of bolt holes) shall not be less than 2.5 times the nominal bolt diameter. Check FAQs

b s(min) = 2.5 \cdot d b

b_s(min) - Minimum Bolt Spacing?d_b - Nominal Bolt Diameter?

Minimum Bolt Spacing Example

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Here is how the Minimum Bolt Spacing equation looks like with Values.

Here is how the Minimum Bolt Spacing equation looks like with Units.

Here is how the Minimum Bolt Spacing equation looks like.

3.75 = 2.5 \cdot 1.5

3.75m = 2.5 \cdot 1.5m

3.75 = 2.5 \cdot 1.5

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Minimum Bolt Spacing Solution

Follow our step by step solution on how to calculate Minimum Bolt Spacing?

FIRST Step Consider the formula

b s(min) = 2.5 \cdot d b

Next Step Substitute values of Variables

∴

b s(min) = 2.5 \cdot 1.5m

Next Step Prepare to Evaluate

∴

b s(min) = 2.5 \cdot 1.5

LAST Step Evaluate

∴

b s(min) = 3.75m

Minimum Bolt Spacing Formula Elements

Variables

Minimum Bolt Spacing

Minimum Bolt Spacing is Minimum pitch (distance between centres of bolt holes) shall not be less than 2.5 times the nominal bolt diameter.

Symbol: b_s(min)

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Minimum Bolt Spacing

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: d_b

Measurement: LengthUnit: m

Note: Value should be greater than 0.

Formulas to find Nominal Bolt Diameter

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Go Circumferential Stress (Hoop Stress) in Cylinderical Shell

σ c = \frac{P Internal \cdot D}{2} \cdot t c

Go Longitudinal Stress (Axial Stress) in Cylindrical Shell

σ CylindricalShell = \frac{P LS \cdot D}{4} \cdot t c

Go Hoop Strain

E = \frac{l 2 - l 0}{l 0}

Go Bolt Circle Diameter

B = G o + (2 \cdot d b) + 12

How to Evaluate Minimum Bolt Spacing?

Minimum Bolt Spacing evaluator uses Minimum Bolt Spacing = 2.5*Nominal Bolt Diameter to evaluate the Minimum Bolt Spacing, Minimum Bolt Spacing is minimum pitch (distance between centres of bolt holes) shall not be less than 2.5 times the nominal bolt diameter. Minimum Bolt Spacing is denoted by b_s(min) symbol.

How to evaluate Minimum Bolt Spacing using this online evaluator? To use this online evaluator for Minimum Bolt Spacing, enter Nominal Bolt Diameter (d_b) and hit the calculate button.

FAQs on Minimum Bolt Spacing

What is the formula to find Minimum Bolt Spacing?

The formula of Minimum Bolt Spacing is expressed as Minimum Bolt Spacing = 2.5*Nominal Bolt Diameter. Here is an example- 3.75 = 2.5*1.5.

How to calculate Minimum Bolt Spacing?

With Nominal Bolt Diameter (d_b) we can find Minimum Bolt Spacing using the formula - Minimum Bolt Spacing = 2.5*Nominal Bolt Diameter.

Can the Minimum Bolt Spacing be negative?

No, the Minimum Bolt Spacing, measured in Length cannot be negative.

Which unit is used to measure Minimum Bolt Spacing?

Minimum Bolt Spacing is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Minimum Bolt Spacing can be measured.

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