Cut Model of Planetary Gear System

FEATURES:
Topical as in every automatic motorcar transmission there is a planetary gear.
Principle of operation and design of a planetary gear
Demonstration of complex machine elements and demonstration of their principle of operation
Hand-powered cutaway model for demonstrating the function of a planetary gear
Industrial original component, fully functional cutaway model  

SPECIFICATION:
The cutaway models represent original components in which the active parts are clearly visible to the user while fully maintaining their mechanical functionality.
Each of the cutaway models is securely mounted on a base plate,
Which also has handles to allow them to be carried.  
They are powered by hand.