Gears and transmission
12T Bicycle Sprocket (6-Speed, Adjustable Bore)
- Bounding box
- 55.0 × 55.0 × 2.0 mm
- Engine
- Precision B-rep
- Parameters
- 7
- Published
- September 18, 2026
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The prompt
Design a 6-speed bicycle 12T sprocket that has an adjustable bore. The bore should be adjustable, so that the bore's size can be made bigger or smaller. The maximum size of the bore in diameter must be 40 mm.
Parameters
| Name | Value | Range |
|---|---|---|
| Chain Pitch | 12.7 mm | 6.35 – 19.05 |
| Roller Diameter | 7.75 mm | 3 – 12 |
| Roller Seat Clearance | 0.2 mm | 0 – 0.6 |
| Number of Teeth | 12 count | 10 – 24 |
| Plate Thickness | 2 mm | 1 – 5 |
| Tooth Tip Land Width | 3.2 mm | 1.5 – 5 |
| Bore Diameter (adjustable) | 30 mm | 5 – 40 |
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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