A Bushing represents three component forces and three component torques acting between two bodies in particular directions. A Bushing object supports three types of spring, damping and actuating forces. Two bodies, locations and orientations on the bodies must be specified to create the force. A Bushing calculates its force and torque based on the relative displacement and angle between the two markers. The action force and torque are applied to the action marker and an equal and opposite reaction force is applied to the base marker. The reaction torque at the base marker is usually not equal to the action torque because of the force transfer. A Bushing can be widely used to represent a simple bearing, mount bush, gap contact and so on.