Bending Moment
Mechanical
Bending Moment is a core engineering term. Definition, usage notes, and a practical example.
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Module Calculator
Calculates raw module from pitch diameter and tooth count, then suggests nearest standard module and recommended diameter.
Module Calculator
Enter pitch diameter (d) and tooth count (z), calculate raw module, and see nearest standard module with recommended diameter.
Raw module m5.000 mm
Pitch (π·m)15.708 mm
Suggested standard m5.000 mm
Suggested diameter (m_std·z)200.00 mm
Standard deviation+0.0 %
Undercut warning (20°)OK
Engineering Diagram
Schematic view based on pitch diameter and tooth count.
Preview
PNG export is report-ready.
Standard module series: 0.5, 0.6, 0.8, 1, 1.25, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, 20. Changing diameter/tooth count updates nearest standard module and corresponding recommended pitch diameter.
Standard Documentation
Gear ModuleScope: What does this tool calculate?
Gear Module performs the core engineering calculation for this tool type and presents results in a traceable format.
Assumptions and Units
- SI units are the baseline; input unit consistency must be verified by the user.
- The calculation path is deterministic (same inputs = same outputs).
- If default material/environment values are used, replace them with project-specific values.
Limits / Boundaries
- This tool is intended for preliminary sizing and technical checks, not final design approval.
- When inputs are outside expected ranges, validate input quality before interpreting outputs.
Reference Standard
- ISO / DIN / VDI references and common engineering handbooks
Validation Example
Validation example
| Input | Expected Output |
|---|---|
| Input set: Unit-consistent project values | Expected output: Tool result is in the same order as standard references |
Note: In real projects, run at least one manual check or reference-table comparison.
Version and Update
- Version
- v0.1.0
- Last updated
- 2026-03-04
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Glossary
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