1. What is Worm Gear Module?

The module is a fundamental parameter in gear design that represents the size of the gear teeth. For worm gears, it's calculated as the pitch diameter divided by the number of teeth, standardizing gear sizes for proper meshing.

2. How Does the Calculator Work?

The calculator uses the worm gear module formula:

Where:

• \( Pitch\ Diameter \) — Diameter of the gear's pitch circle (mm)
• \( Teeth \) — Number of teeth on the gear

Explanation: The module determines tooth size and must match between meshing gears for proper operation.

3. Importance of Module Calculation

Details: Correct module calculation ensures proper gear meshing, load distribution, and efficient power transmission in worm gear systems.

4. Using the Calculator

Tips: Enter pitch diameter in millimeters and number of teeth (must be positive integers). The calculator will output the module in millimeters.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between module and diametral pitch?
A: Module is metric (mm/tooth), while diametral pitch is imperial (teeth/inch). Module = 25.4 / diametral pitch.

Q2: What are standard module sizes?
A: Common modules follow preferred numbers (1, 1.25, 1.5, 2, 2.5, 3, etc.) but custom sizes are possible.

Q3: How does module affect gear strength?
A: Larger modules mean larger, stronger teeth but fewer teeth for a given diameter, affecting contact ratio.

Q4: Can I use this for helical gears?
A: The basic formula works, but helical gears require additional calculations for normal and transverse modules.

Q5: How precise should module calculations be?
A: Typically calculated to 3-4 decimal places for precision gearing applications.