848468
Loading the interactive model…
Interactive 3D model of Planetary Gearbox 3:1

Gears and transmission

Planetary Gearbox 3:1

1 views
Bounding box
84 × 84 × 68 mm
Engine
3D Printing B-rep
Parameters
30
Published
November 11, 2026

Download

Free to download and use. See the terms.

The prompt

Create a planetary gearbox with ratio of 1:3

Parameters

NameValueRange
Housing outer diameter70 mm40 – 120
Housing length34 mm20 – 80
Housing wall thickness5 mm2 – 10
Mounting flange diameter84 mm60 – 140
Mounting flange thickness4 mm2 – 10
Mounting bolt hole diameter5.5 mm3 – 10
Ring gear teeth36 mm20 – 80
Gear module1.5 mm0.5 – 3
Ring gear face width12 mm6 – 30
Ring gear outer diameter60 mm40 – 120
Sun gear teeth18 mm10 – 40
Sun gear bore8 mm4 – 20
Sun gear face width12 mm6 – 30
Planet gear teeth9 mm6 – 30
Planet gear bore5 mm3 – 12
Planet gear face width12 mm6 – 30
Planet orbit radius20.25 mm15 – 25
Planet angular spacing120 deg90 – 180
Carrier plate diameter50 mm30 – 80
Carrier plate thickness8 mm4 – 20
Planet pin diameter5 mm3 – 10
Planet pin length14 mm8 – 30
Input shaft diameter8 mm4 – 20
Input shaft length30 mm15 – 60
Input coupling diameter6 mm3 – 15
Input coupling length8 mm4 – 20
Output shaft diameter10 mm5 – 25
Output shaft length30 mm15 – 60
Output coupling diameter8 mm4 – 20
Output coupling length10 mm4 – 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.

Planetary Gearbox 3:1 - Free CAD Model (STEP, STL) | TextoCAD