Gears and transmission
Helical Pinion 20T m1.2 with Bored Hub
- Bounding box
- 70.0 × 70.0 × 130.1 mm
- Engine
- Precision B-rep
- Parameters
- 11
- Published
- October 4, 2026
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The prompt
Create a parametric helical gear with the following specifications: 20 teeth, normal module of 1.2 mm, right-hand helix, total face width of 80 mm, and a central bore hole with a diameter of 40 mm. Output as a clean solid CAD body.
Parameters
| Name | Value | Range |
|---|---|---|
| Normal Module | 1.2 mm | 0.5 – 6 |
| Number of Teeth | 20 count | 8 – 60 |
| Face Width | 80 mm | 10 – 200 |
| Helix Angle (RH if +) | 20 deg | -45 – 45 |
| Pressure Angle | 20 deg | 14.5 – 25 |
| Central Bore Diameter | 40 mm | 12 – 50 |
| Hub / Flange Diameter | 70 mm | 55 – 160 |
| Hub Length Behind Gear | 50 mm | 15 – 200 |
| Solid Web Thickness | 20 mm | 5 – 120 |
| Gear-Hub Axial Overlap | 5 mm | 2 – 20 |
| Hub Rim / Bore Chamfer | 1 mm | 0 – 3 |
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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