Engineering References
Everything you need for gear standards, conversions, and design reference data.
Spur Gear Calculator
ISO 21771 spur geartrain design with profile shift, backlash, and 2D/3D DXF/STEP/STL/GLB export.
Helical Gear Calculator
ISO 21771 helical geartrain design with helix angle, transverse geometry, and 3D STEP/STL/GLB export.
Herringbone Gear Calculator
ISO 21771 herringbone geartrain design with helix angle, mid-face split, and 3D STEP/STL/GLB export.
Planetary Gear Calculator
Sun, planet, and ring gear sets with ratio exploration and browser-based design.
Rack & Pinion Calculator
Helical rack and pinion with ISO 53 tooth depth, equal pitch-line thickness and space, and 2D/3D DXF/STEP export.
How to Use
Step-by-step guidance for using GearGen.XYZ tools, controls, and workflows.
Reverse Engineering
How to reverse engineer spur and helical gears using GearGen.XYZ to verify module, pressure angle, and backlash
Backlash
Gear backlash information and reference values for proper gear design and manufacturing.
Base Pitch Table Lookup
Find or verify base pitch for involute gears. Base pitch must be equal for mating gears to mesh properly.
Common Diametral Pitch
Standard diametral pitch (DP) values for inch-system gears used in imperial gear design.
Common Modules
Module references for both fine and coarse pitch gears.
Module to Diametral Pitch Converter
Convert between metric module (m) and inch-system diametral pitch (DP).