The term MOVING MACHINE PART refers to two components of a machine, a CAM and a ROTOR. A CAM is a rotating or sliding piece in a mechanical linkage used especially in transforming rotary motion into linear motion. A ROTOR is a rotating part of an engine, motor, or generator, typically having several vanes or blades that impart motion to the surrounding fluid. Together, these two parts form a moving machine part, which is essential for the functioning of many machines.