1. What is Gear Module?

The gear module is a fundamental parameter in gear design that represents the size of the gear teeth. It is defined as the ratio of the pitch diameter to the number of teeth and is typically measured in millimeters.

2. How Does the Calculator Work?

The calculator uses the gear module formula:

Where:

• Pitch Diameter — Diameter of the pitch circle (mm)
• Number of Teeth — Total number of teeth on the gear (unitless)

Explanation: The module determines the size and spacing of gear teeth, which is crucial for proper meshing and power transmission between gears.

3. Importance of Gear Module Calculation

Details: Accurate module calculation is essential for designing gear systems with proper tooth engagement, load distribution, and efficient power transmission in mechanical applications.

4. Using the Calculator

Tips: Enter pitch diameter in millimeters and number of teeth as a whole number. Both values must be positive (pitch diameter > 0, number of teeth ≥ 1).

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between module and gear size?
A: Larger module values indicate larger gear teeth, which can transmit more power but may require more space and produce more noise.

Q2: What are standard module values?
A: Module values are typically standardized (e.g., 1, 1.25, 1.5, 2, 2.5, 3, etc.) to ensure compatibility between different gear systems.

Q3: How does module affect gear meshing?
A: Gears must have the same module to mesh properly. Different module values will prevent proper tooth engagement and cause operational issues.

Q4: Can module be calculated for any type of gear?
A: The module concept applies to spur gears, helical gears, and bevel gears, though additional parameters may be needed for complex gear types.

Q5: What's the difference between module and diametral pitch?
A: Module (metric system) is the inverse of diametral pitch (imperial system). Module = 25.4 / diametral pitch for conversion between systems.