Gears and transmission
Involute Spur Gear 12T M1.25
- Bounding box
- 17.5 × 17.5 × 15.0 mm
- Engine
- Precision B-rep
- Parameters
- 5
- Published
- October 15, 2026
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The prompt
Create a standard involute spur gear with 12 teeth, module 1.25 mm, and a 20 degree pressure angle. The pitch diameter must be 15 mm, the base diameter approximately 14.10 mm, and the outside diameter 17.5 mm. The circular pitch is 3.927 mm and the tooth thickness at the pitch circle is approximately 1.964 mm. Make the gear 15 mm thick. Use a standard full-depth involute tooth profile. Do not add a keyway. Keep the center bore simple and editable.
Parameters
| Name | Value | Range |
|---|---|---|
| Module | 1.25 mm | 0.5 – 3 |
| Number of Teeth | 12 mm | 8 – 120 |
| Pressure Angle | 20 deg | 14.5 – 25 |
| Face Width / Thickness | 15 mm | 5 – 50 |
| Center Bore Diameter | 6 mm | 2 – 10 |
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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