Gears and transmission
Standard Full-Depth Involute Spur Gear
- Bounding box
- 63.5 × 62.9 × 38.1 mm
- Engine
- Precision B-rep
- Parameters
- 5
- Published
- August 29, 2026
Download
Free to download and use. See the terms.
The prompt
Create a standard full-depth involute spur gear. Gear type: External spur gear Number of teeth: 18 Diametral pitch: 8 teeth/in Equivalent module: 3.175 mm Pressure angle: 20 degrees Pitch diameter: 2.250 in (57.15 mm) Outside diameter: 2.500 in (63.50 mm) Root diameter: 1.9375 in (49.2125 mm) Base diameter: 2.1141 in (53.699 mm) Circular tooth thickness at pitch circle: 0.19635 in (4.987 mm) Face width: 1.500 in (38.10 mm) Center bore diameter: 0.750 in (19.05 mm) Use a true involute tooth profile with standard full-depth geometry. Do not use a simplified polygonal tooth. Create a clean solid parametric CAD model suitable for export to STEP and import into PTC Creo Parametric 12.4.
Parameters
| Name | Value | Range |
|---|---|---|
| Module (mm) | 3.18 mm | 0.5 – 10 |
| Number of Teeth | 18 teeth | 6 – 200 |
| Pressure Angle (deg) | 20 deg | 14.5 – 25 |
| Face Width | 38.1 mm | 5 – 100 |
| Center Bore Diameter | 19.05 mm | 0 – 50 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
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