Gears and transmission
Assembled Two-Stage Helical Gearbox
- Bounding box
- 400.0 × 220.0 × 302.5 mm
- Engine
- Precision B-rep
- Parameters
- 34
- Published
- August 18, 2026
Download
Free to download and use. See the terms.
The prompt
| Parameter | Suggested value | | ------------------- | -------------------------------: | | Application | High-speed bearing testing | | Input speed | 3,000–6,000 rpm | | Output speed | 1,500–3,000 rpm | | Gear ratio | 2:1 | | Power | 2–5 kW for prototype | | Gear type | Helical gear | | Gear material | EN8 / EN19 | | Housing | Aluminium or cast iron | | Lubrication | Oil bath / forced oil | | Bearings | Angular-contact ball bearings | | Gearbox arrangement | 2-stage if higher ratio required |
Parameters
| Name | Value | Range |
|---|---|---|
| Housing Length | 320 mm | 200 – 500 |
| Housing Width | 220 mm | 150 – 400 |
| Lower Housing Height | 150 mm | 80 – 250 |
| Upper Cover Height | 100 mm | 50 – 200 |
| Housing Wall Thickness | 15 mm | 8 – 30 |
| Oil Sump Depth | 60 mm | 20 – 100 |
| Flange Bolt Hole Diameter | 8 mm | 4 – 20 |
| Bolt Hole Edge Margin | 25 mm | 10 – 60 |
| Breather Hole Diameter | 10 mm | 4 – 30 |
| Oil Filler Hole Diameter | 20 mm | 10 – 50 |
| Input Shaft Diameter | 40 mm | 20 – 80 |
| Input Shaft Length | 260 mm | 160 – 400 |
| Input Shaft Protrusion | 40 mm | 0 – 80 |
| Output Shaft Diameter | 50 mm | 25 – 100 |
| Output Shaft Length | 280 mm | 180 – 450 |
| Output Shaft Protrusion | 40 mm | 0 – 80 |
| Gear Module | 2.5 mm | 1 – 5 |
| Input Gear Teeth | 24 | 12 – 40 |
| Output Gear Teeth | 48 | 24 – 80 |
| Gear Face Width | 45 mm | 20 – 80 |
| Helix Angle | 20 deg | 0 – 45 |
| Bearing Center Distance from Center | 50 mm | 30 – 100 |
| Input Bearing OD | 80 mm | 50 – 120 |
| Input Bearing ID | 40 mm | 20 – 80 |
| Input Bearing Width | 18 mm | 8 – 40 |
| Output Bearing OD | 90 mm | 60 – 140 |
| Output Bearing ID | 50 mm | 25 – 100 |
| Output Bearing Width | 20 mm | 10 – 45 |
| Input Seal OD | 65 mm | 40 – 120 |
| Input Seal ID | 45 mm | 25 – 80 |
| Input Seal Width | 8 mm | 4 – 20 |
| Output Seal OD | 80 mm | 50 – 150 |
| Output Seal ID | 55 mm | 30 – 100 |
| Output Seal Width | 8 mm | 4 – 20 |
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.
More models
Browse the full gallery →Spur Gearbox
design gearbox
Spur Gear (12 Teeth)
Built a gear with 12 teeth
Involute Spur Gear with Keyway
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), a