Gears and transmission
6T Profile-Shifted Miniature Spur Gear
- Bounding box
- 6.6 × 5.7 × 6.0 mm
- Engine
- Precision B-rep
- Parameters
- 8
- Published
- October 30, 2026
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The prompt
Create a highly robust, functional metric involute spur gear designed for a high-torque miniature Johnson motor. Specifications: - Number of teeth: 6 - Normal module: 0.75 mm - Pressure angle: 20 degrees - Profile shift coefficient (x): +0.55 (thickens the tooth root base, prevents undercutting, and shortens the tip) - Face width (thickness): 6 mm - Center bore diameter: 2.3 mm - The tooth profile must feature stubby, wide-root teeth with a smooth fillet radius at the root and a rounded tip addendum, identical to an anti-undercut low tooth count motor pinion.
Parameters
| Name | Value | Range |
|---|---|---|
| Normal Module | 0.75 mm | 0.3 – 2 |
| Number of Teeth | 6 | 4 – 20 |
| Face Width | 6 mm | 2 – 20 |
| Bore Diameter | 2.3 mm | 1 – 10 |
| Pressure Angle | 20 deg | 14.5 – 25 |
| Profile Shift Coefficient x | 0.55 | -0.2 – 1 |
| Root Fillet Radius | 0.2 mm | 0.05 – 0.5 |
| Tip Rounding Radius | 0.15 mm | 0.02 – 0.4 |
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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