Gears and transmission
Involute Spur Gear - Hub & Keyway (m2, z40)
- Bounding box
- 84.0 × 84.0 × 25.0 mm
- Engine
- Precision B-rep
- Parameters
- 10
- Published
- September 21, 2026
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The prompt
Precision Involute Spur Gear with Hub and Keyway: Module (m) of 2.0 mm, 40 teeth (z), Pitch Circle Diameter (d) of 80.00 mm, 20° pressure angle (\alpha), 15.00 mm face width (b), and a 15.00 mm (+0.011 / +0.000) bore diameter (d_b) with an H7 fit. Features a DIN 6885/1 keyway measuring 5.0 mm × 2.3 mm, backlash tolerance of 0.05–0.08 mm, 58–62 HRC induction-hardened AISI 4140 chromoly steel construction, and tooth flank surface roughness of Ra \le 0.4\,\mu\text{m}.
Parameters
| Name | Value | Range |
|---|---|---|
| Module (m) | 2 mm | 0.5 – 6 |
| Number of Teeth (z) | 40 teeth | 8 – 120 |
| Pressure Angle (alpha) | 20 deg | 14.5 – 25 |
| Face Width (b) | 15 mm | 4 – 40 |
| Bore Dia (d_b, H7) | 15 mm | 4 – 60 |
| Keyway Width | 5 mm | 1 – 14 |
| Keyway Depth (t2) | 2.3 mm | 0.5 – 6 |
| Hub Diameter | 45 mm | 20 – 70 |
| Hub Protrusion (per side) | 5 mm | 0 – 20 |
| Hub End 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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