Module Calculator
ActiveModule
Module recommendation and checks based on gear size, tooth count, and quality.
Calculator tabs
Documentation coming soon
Online Gear CalculatorsPick a card and start calculating
Choose a calculator card and open its page with “Use”
Each calculator has its own card. The “Use” button opens that tool page where you can start calculations and add notes or visuals if needed.
Gear Ratio Calculator
ActiveRatio
Ratio, rpm, and torque relation from z1/z2 or d1/d2.
Tangential Force / Torque Calculator
ActiveForce
Automatic Ft = 2·π·T/d and Fr/Fa (helix) calculation.
Helical Axial Force Calculator
ActiveHelix
Calculates Fa using helix and pressure angles; bearing load estimate.
Contact Ratio Calculator
ActiveContact
Estimates contact sequence with e_alpha + e_beta (profile + overlap).
Lubricant Viscosity Selector
ActiveLubrication
ISO VG and lubrication method recommendation from ks and v values.
Gear Weight / Body Optimization
ActiveWeight
Weight and savings estimate using geometry + pocket/rib data.
Backlash Calculator
ActiveBacklash
Min/nom/max backlash with module, center distance, and temperature input.
Standard Documentation
Gear CalculatorsScope: What does this tool calculate?
Gear Calculators 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
Related terms
Terms that share the same concepts as this calculator.
Bending Moment
Mechanical
Bending Moment is a core engineering term. Definition, usage notes, and a practical example.
Buckling
Mechanical
Buckling is a core engineering term. Definition, usage notes, and a practical example.
Coefficient of Friction
Mechanical
Coefficient of Friction is a core engineering term. Definition, usage notes, and a practical example.
Fatigue
Mechanical
Fatigue is a core engineering term. Definition, usage notes, and a practical example.
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