From the designs usually shown of rocker bogie systems, the whole weight of platform seems to be supported by only one rod, be it differential bar or gear. Isn't this a bit unstable system because if we have arms of rover at one end we will have a high torque about that rod?
Is my understanding such rocker bogie systems correct? If so, are there any solutions to this problem which don't sacrificing the functionality of rover?
To clarify, I want to know how rovers like curiosity are designed so as to balance such a heavy platform with a differential bar mechanism. I am trying to make a small rocker bogie myself and I want to avoid this anticipated problem.