PARAMETRIC · 3D · STEP

Worm Gear Generator

Enter module, number of starts, shaft diameter, length, bore, and helix direction to generate a STEP file for a worm gear (worm only).

Pressure Angle 20° Tooth Form Rack Section Loft Use Worm Power Transmission

🔍 View 3D Preview First

SAMPLE

STATIC · DEFAULT-VALUE MODEL

● SAMPLE IMAGE

VIEW · ISO

m=2 · w=1 · ⌀20 · L40

WORM GEAR

DEFAULT PARAMETERS

5.74deg

Helix Angle β

6.31mm

Lead L

d_p

20.00mm

Pitch Diameter dp

d_a

24.00mm

Tip Diameter da

d_f

15.00mm

Root Diameter df

HOW-TO How to Generate a Worm Gear STEP File +

Enter the module, number of starts, shaft diameter, length, bore, and helix direction
Press the "Generate STEP File" button
The STEP file download will start automatically
Check the 3D preview shown on the download page

PARAMETERS

Enter Dimensions

6 REQUIRED

Module(m) 0.5–4 mm

Basic unit determining tooth size

Number of Starts(n) 1–6 starts

starts

Number of helical threads (integer)

Shaft Diameter(d) 5–100 mm

Pitch diameter of the worm

Length(L) 10–300 mm

Total length of the worm (m×2 mm at each end is a smooth shoulder)

Bore Diameter(d_h) 0–100 mm

Diameter of the center bore (0 = no bore)

Helix Direction

Right-handed Left-handed

Direction of the helix (right-handed is typical)

CAUTION

The worm gears generated by this tool are reference implementations based on estimated values from multiple sources. Generation may take up to 120 seconds.

ABOUT · STEP

The STEP file (.step / .stp) is a standard 3D CAD format that retains dimensional and topology data. Compatible with major CAD software including Fusion 360, SolidWorks, and FreeCAD.

Full-scale solid (mm units)
Editable dimensions and post-processing in CAD
Convertible with a slicer for 3D printing

FEEDBACK

BUG · REQUEST

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