Jouets et figurines

3D Models of Planetary Hubs for Technic Builds

This collection gathers STL files for planetary hubs, gearboxes and related Technic-style parts. You can compare wheel hub designs, steering bearings with reduction, differential assemblies and orbit simulators. It helps you find a starting point for 3D printing mechanical builds and then refine the search by function. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

Le texte de cette collection est rédigé en anglais ; la recherche, elle, fonctionne dans toutes les langues.

Comment cette collection est composée

Polyzon compose cette collection à partir des résultats de recherche des plateformes connectées. Les doublons et les modèles sans aperçu sont retirés, les correspondances faibles sont placées à la fin, et le reste suit l’ordre de la recherche. Les modèles appartiennent à leurs auteurs : consultez les conditions sur la page de chaque modèle.

Règles de sélection : la rédaction de Polyzon · Texte mis à jour le 12/10/2026


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«3D Models of Planetary Hubs for Technic Builds»

Planetary wheel hubs usually focus on the interface between axle, rim and gear reduction, while standalone gearboxes concentrate on ratio and housing. Steering bearings with planetary reduction combine a bearing seat with a gear stage, and differential or gearset assemblies show how multiple gears mesh. Orbit simulators use planetary motion as a visual mechanism rather than a drivetrain part.

When choosing a model, check the listed scale, axle diameter and mounting points, because Technic-style parts must match existing pins and holes. Look at the number of parts, assembly order and whether the author shows photos of real prints. For printing, review the recommended material, layer height, tolerances and whether supports are needed for overhangs.

To narrow the results, try synonyms such as planetary gear, hub, reducer, gearset and differential, or combine them with terms like axle, wheel, steering and bearing. Related topics include Technic-style construction parts, mechanical demonstrators and orbit models. Changing the search toward a specific function often gives a more focused set of STL files.

FAQ

Questions fréquentes

What is a planetary hub in a Technic-style build?
It is a wheel or axle mount that uses a small planetary gear set to change speed or torque. In Technic builds it often connects a rim, axle and gear reduction in one compact unit.
How do I choose the right gear ratio?
The ratio depends on the motor speed, wheel size and intended torque. Check the author's description for the reduction stage and compare it with the rest of your drivetrain.
What should I check before printing a planetary gearbox?
Review the part count, assembly instructions, tolerances and the material the author lists. Also look at photos of printed parts to see how the gears and housing fit together.
Can I mix these parts with other Technic-style models?
Mixing parts depends on axle sizes, pin spacing and mounting points. Compare the dimensions on the model page with the parts you already use.

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