Molecular planetary gearsets – van der waals research (part of my stick slip interest) Wireframe display mode, VDW shading, VDW lines and kinetic energy shading Source: http://mw.concord.org/modeler1.3/mirror/nano/planetarygear.htm Common planetary gearsets are composed of three components: the sun gear, the planet gears (and the planet carrier to which the planet gears are fixed), and the ring gear. Each of these components can be input, output, or fixed. The gear ratio, which is the ratio of the rotation speeds of the input and output component, is determined by the setting of these components and the number of teeth of the sun and ring gear: When Input=S, Output=C, Stationary=R, gear ratio = 1 + r / s; When Input=S, Output=R, Stationary=C, gear ratio = – r / s; When Input=C, Output=R, Stationary=S, gear ratio = r / ( r + s ); where r is the number of teeth of the ring gear and s is the number of teeth of the sun gear. If the ratio is greater than 1, it is a reduction (the output component rotates more slowly than the input one). Otherwise, it is an overdrive (the output component rotates more quickly than the input one).

Molecular planetary gearsets – van der waals research (part of my stick slip interest)
 
Wireframe display mode, VDW shading, VDW lines and kinetic energy shading
 
Source: http://mw.concord.org/modeler1.3/mirror/nano/planetarygear.htm
 
Common planetary gearsets are composed of three components: the sun gear, the planet gears (and the planet carrier to which the planet gears are fixed), and the ring gear. Each of these components can be input, output, or fixed. The gear ratio, which is the ratio of the rotation speeds of the input and output component, is determined by the setting of these components and the number of teeth of the sun and ring gear:
When Input=S, Output=C, Stationary=R, gear ratio = 1 + r / s;
When Input=S, Output=R, Stationary=C, gear ratio = – r / s;
When Input=C, Output=R, Stationary=S, gear ratio = r / ( r + s );
where r is the number of teeth of the ring gear and s is the number of teeth of the sun gear. If the ratio is greater than 1, it is a reduction (the output component rotates more slowly than the input one). Otherwise, it is an overdrive (the output component rotates more quickly than the input one).
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