Home
Back
Formula Used:
| From: | To: |
The Height of Fundamental Triangle is the height of the thread when the profile is extended to a sharp vee form. It represents the theoretical maximum height of a perfect thread form.
The calculator uses the formula:
Where:
Explanation: This formula calculates the theoretical height of the fundamental triangle by taking the difference between the major diameter and pitch diameter, then dividing by the constant factor 0.75.
Details: Calculating the height of the fundamental triangle is crucial for thread design, manufacturing, and quality control. It helps determine thread strength, engagement characteristics, and ensures proper thread form in mechanical assemblies.
Tips: Enter both major diameter and pitch diameter in meters. Ensure values are positive and the major diameter is greater than the pitch diameter for valid results.
Q1: Why is the constant 0.75 used in the formula?
A: The constant 0.75 is derived from the geometry of the ISO metric thread standard and represents the relationship between thread height and diameter differences.
Q2: What are typical values for Height of Fundamental Triangle?
A: Typical values range from a few millimeters to several centimeters, depending on thread size and application requirements.
Q3: Can this formula be used for internal threads?
A: This specific formula is designed for external threads. Internal threads may require different calculations based on their specific geometry.
Q4: How does thread pitch affect the height calculation?
A: Thread pitch is indirectly accounted for through the pitch diameter measurement, which varies with different thread pitches.
Q5: What measurement units should be used?
A: The calculator uses meters as the standard unit, but you can convert from other units (mm, inches) before inputting values.