How does a planetary gear work?
A planetary gear is an epicyclic gear in which several gears (planet gears) mesh with a central gear (sun gear).
https://youtu.be/cKjWcUvZuhM
Stationary gearbox
So-called stationary gearboxes are characterised by the fact that the gear wheels...
Construction of the cycloidal disc of a cycloidal drive
Learn more about the design of the cycloidal disc of a cycloidal drive in this article.
https://youtu.be/BRtpldwicv4
Design of the cycloidal disc
Cycloidal disc with ordinary cycloid
As already explained in the article "Operating principle",...
Willis equation for planetary gears
Learn more about the Willis equation applied to planetary gears in this article.
https://youtu.be/oXD9uJb_TOg
In the article Derivation of the Willis equation, the fundamental equation for epicyclic gears was derived in the following...
How does a three-speed gear hub work?
Learn more about the structure and function of the planetary gear in a three-speed gear hub in this article.
https://youtu.be/8R3xzAdxYIc
Assembly and function
The figure below schematically shows the assembled components of a three-speed...