1. What is Gear Module?

The gear module (M) 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. The module is typically measured in millimeters and is a critical factor in determining gear compatibility and performance.

2. How Does the Calculator Work?

The calculator uses the gear module formula:

Where:

• \( M \) — Gear module (mm)
• \( D \) — Pitch diameter (mm)
• \( N \) — Number of teeth

Explanation: The module determines the size of the gear teeth and is essential for ensuring proper meshing between gears in a gear system.

3. Importance of Gear Module Calculation

Details: Accurate module calculation is crucial for gear design, manufacturing, and ensuring proper operation of gear systems. It affects tooth strength, wear resistance, and overall gear performance.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between module and diametral pitch?
A: Module is the metric equivalent of diametral pitch used in imperial systems. The relationship is M = 25.4 / P where P is the diametral pitch.

Q2: What are standard module values?
A: Gear modules are standardized according to ISO standards, with common values including 1, 1.25, 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm.

Q3: How does module affect gear size?
A: Larger module values result in larger, stronger teeth that can transmit more torque but may require more space and produce more noise.

Q4: Can gears with different modules mesh together?
A: No, gears must have the same module to properly mesh together and transmit motion efficiently.

Q5: How is module related to gear ratio?
A: Module itself doesn't determine gear ratio. Gear ratio is determined by the number of teeth on meshing gears (N1/N2), but both gears must have the same module.