thanks for your recommendation,
that was exactly what i was looking for as the “Radial Force / Impulse” was not the effect i was looking for, thanks again,
note 1/ i used “physics Constraint” instead of “Physic Constraint Actor” as i am generating the Gears bluePrints randomly in space,
note 2/ it is better to set the Constraint Limits pragmatically inside the blupring, rather than setting them from the Detail Pan, as if you want to set the limits FREE for example you can , as in my case for some reason i was not being able to set the limits free when i blocked them from the Detail Pan