For example, the industrial robotic arm is having rigid links, there will not be any deformation while moving the arm. Rigid link: In this type of link, there will not be any deformation while transmitting the motion.There are different division of link in robot. “A link is defined as a single part which can be a resistant body or a combination of resistant bodies having inflexible connections and having a relative motion with respect to other parts of the machine.Ī link is also known as a kinematic link or element.Ī resistant body is one which does not go under deformation while transmitting the force.” Reference: Theory of Machines Joints and Links of a human arm What is a link in a robot?