A body-fixed instantaneous axis of rotation constitutes the kinematically simplest case (e.g. trailing-link suspension) as a special form of the "Plane" suspension.
Depending on the kinematics of the suspension, changes in the wheelbase, track width, camber angle and toe-angle of the wheel relative to the body or the road take place.
→All points on the wheel carrier move tangential to the circular arcs around the instantaneous axis of rotation.
→In three-dimensional suspensions, the velocity components of the translational movement in the direction of the axis of rotation must also be considered.