Gears and transmission
Metric Spur Gear with Keyway
- Bounding box
- 78.0 × 75.3 × 43.5 mm
- Engine
- Precision B-rep
- Parameters
- 7
- Published
- October 15, 2026
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The prompt
Generate a highly accurate, parametric 3D CAD model of a metric spur gear in STEP format. The geometry must adhere strictly to the following parameters: Module is 6.5, number of teeth is 10, pressure angle is 20 degrees, and the total face width is 43.5 mm. The hub profile must be Type A (perfectly flat and flush with the gear faces, with no protruding shoulders or collars). The center features a straight nominal shaft bore with a diameter of 15 mm. Cut a standard metric square parallel keyway into the bore that is exactly 5 mm wide by 5 mm tall, centered on the shaft opening."
Parameters
| Name | Value | Range |
|---|---|---|
| Module (m) | 6.5 mm | 0.5 – 12 |
| Number of teeth | 10 | 6 – 60 |
| Pressure angle | 20 deg | 14.5 – 25 |
| Face width | 43.5 mm | 10 – 80 |
| Bore diameter | 15 mm | 5 – 40 |
| Keyway width | 5 mm | 2 – 12 |
| Keyway depth | 5 mm | 2 – 12 |
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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