[question] Two bladed rotor system

[CS-Hover]

Hello

in a hangar talk discussion, this come an argument:

"...in a two bladed rotor system, the blades can change from the 180º position (lead lag)... to equalize the forces in each blade during forward flight ... this is accomplished by the hub itself ... "

using, as example, the rotor head of the R22, and what is written in the POH - "main rotor articulation : free to teeter and cone, rigid inplane",

i always have the idea, that 180º is always maintained and the forces are resisted by the hub itself, that "fights" to maintain it (resistance of the materials)

comments?

thanks
regards