What are the examples for kinematic pair?

In mechanical engineering, a kinematic pair is a connection between two rigid bodies that allows for relative motion between them. Kinematic pairs are classified based on the type of motion they permit. Here are some common types of kinematic pairs along with examples: Sliding Pair: Example: A piston sliding inside a cylinder. The relative motion is translational, allowing the piston to slide back and forth. Turning Pair: Example: The connection between a shaft and a hub in a rotating machine. This allows rotational motion between the two parts. Rolling Pair: Example: A wheel rolling on a flat surface. This involves a combination of translational and rotational motion. Screw Pair: Example: A bolt and a nut. The relative motion involves both translation along the axis (as the nut moves along the bolt) and rotation (as the nut rotates around the bolt). Cylindrical Pair: Example: A shaft rotating within a hole. This allows rotational motion along the axis and translational motion in the radial direction. Prismatic Pair: Example: A drawer sliding in and out. This allows pure translational motion along a specified direction. Revolute Pair: Example: A door hinge. This allows pure rotational motion about a fixed axis. Spherical Pair: Example: A ball-and-socket joint. This allows rotational motion in all directions, providing three degrees of freedom. Planar Pair: Example: The connection between two gears in a gear train. This allows motion in a plane, and it can involve both rotational and translational components. These examples represent various types of kinematic pairs that are commonly encountered in mechanical systems. Understanding the nature of these pairs is crucial in the analysis and design of mechanical systems and machines. read less