Linear cams are mechanical devices that convert rotational motion into linear motion. They consist of a rotating cam profile that pushes against a follower, causing the follower to move in a straight line. This mechanism is commonly used in various applications, such as in automotive engines and industrial machinery, where precise movement is required. The design of linear cams allows for controlled movement, making them ideal for tasks that need specific timing and positioning. They can be found in printing presses, packaging machines, and even in some robotic systems, where they help automate processes efficiently.