Measuring Bolt Circle Geometry Equations and Calculators

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Measuring Large Bolt Circle Geometry Equations Calculators

For bolt circles that are too large to measure using typical methods or the measuring tools. Measuring or determining distances for a bolt circle geometry can be facilitated using the following equations and methods.

Note: In general dimensional specification for circular pattern of features is best illustrated using cartesian (x and y) linear dimensional data rather radial and angle dimensional data (bolt circle). Current industry technologies enable or embrace measurement of linear dimensional data. Most most modern manufacturing equipment are equipped with linear displacement indicators or technology, as well, as coordinate measurement machines (CMM). All units shall be consistant and given in inches or mm. Angles (theta) are given in degrees.

Bolt Circle Even Number of Holes Within Circle
Illustration A

Even Number of Holes Within Circle:

Open:
Measuring Large Bolt Circle Even Number of Holes Calculator

Bolt circle Even Number of Holes Within Circle #2
Illustration B

Even Number of Holes Within Circle #2:

Open:
Measuring Large Bolt Circle Even Number of Holes Calculator #2

Bolt circle Odd Number of Holes in Circle
Illustration C

Odd Number of Holes in Circle:

Open:
Measuring Large Bolt Circle Odd Number of Holes Calculator #3

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