Kinematic pairs are classified based on the type of motion they allow; these include sliding, rolling and turning pairs which each have unique characteristics. Sliding pairs involve two surfaces that slide over one another and this type of pair is typically used when there is a need for low friction between components such as in door hinges or Bearings.

Rolling pairs involve two rotating components while still maintaining contact with each other; typical examples include wheels and axles where one component rotates inside of the other. Finally, turning pairs consist of two cylindrical shapes that rotate relative to one another; this type of pair can be found in things like screwdrivers or drills where a twist is used to generate torque.

In addition to these three main categories, there are also special types of kinematic pairs such as spherical or prismatic joints which provide articulation or linear motion respectively. Ultimately knowing how to classify kinematic pairs correctly can help designers create more efficient machinery by ensuring that the most suitable pair is chosen for the job!