Mechanical parts
Internal Involute Spline Nut 18T
- Bounding box
- 32.0 × 32.0 × 20.0 mm
- Engine
- Precision B-rep
- Parameters
- 8
- Published
- October 7, 2026
Download
Free to download and use. See the terms.
The prompt
Create a precise parametric CAD model of an internal 18-tooth involute spline nut. Dimensions: * Teeth: 18 * Major diameter: Ø20 mm * Root/minor diameter: Ø18 mm * Module: 1 mm * Pressure angle: 20° * Pitch diameter: Ø18 mm * Base diameter: Ø16.914 mm * Tooth spacing: 20° * Units: mm Export as STEP AP242 (.STEP/.STP), not STL.
Parameters
| Name | Value | Range |
|---|---|---|
| Number of Teeth | 18 teeth | 8 – 40 |
| Module | 1 mm | 0.5 – 3 |
| Pressure Angle | 20 deg | 14.5 – 30 |
| Major Diameter (tooth root) | 20 mm | 8 – 60 |
| Minor Diameter (tooth tip) | 18 mm | 6 – 58 |
| Nut Outside Diameter | 32 mm | 12 – 90 |
| Nut Length | 20 mm | 5 – 80 |
| Outer Edge Chamfer | 0.5 mm | 0 – 2 |
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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