This is 92 Gear Spheres wich was created by Paul Nylander.
This animation explains the rotation principle of sphere gear set.
The rotation of the 13x_Main gear is carried out manually using the XForm and the other gears rotate automatically. This model gives you the ability to vary the linkages in different combinations and to understand how their work.
The mechanism was created in 3DS Max. The animation is only in max file. To change the speed of the all gears move the keys of the13x_Main gear. To move the all gears use Sphere_Dummy.