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The Addendum Circle Diameter of a helical gear is defined as the circle touching the outermost points of the teeth of a circular gear wheel. It represents the maximum diameter of the gear including the tooth addendum.
The calculator uses the formula:
Where:
Explanation: This formula calculates the outer diameter of the gear by adding twice the addendum height to the pitch circle diameter.
Details: The addendum circle diameter is crucial for determining the overall size of the gear, ensuring proper clearance between meshing gears, and calculating the gear's contact ratio and strength characteristics.
Tips: Enter the addendum value and pitch circle diameter in meters. Both values must be positive numbers. The calculator will compute the addendum circle diameter.
Q1: What is the difference between pitch circle and addendum circle?
A: The pitch circle is the theoretical circle where gear teeth mesh, while the addendum circle is the outer circle that touches the tips of the teeth.
Q2: How does addendum affect gear performance?
A: The addendum affects the contact ratio, strength, and noise characteristics of the gear. Proper addendum design ensures smooth operation and adequate strength.
Q3: Can this formula be used for all types of gears?
A: This specific formula is primarily used for helical gears, though similar principles apply to other gear types with appropriate modifications.
Q4: What units should be used for input values?
A: The calculator uses meters for all dimensions, but you can use any consistent unit system as long as all inputs are in the same units.
Q5: How accurate is this calculation?
A: The calculation is mathematically exact based on the input values. The accuracy of the result depends on the accuracy of the input measurements.