what is the use of the linear motor? A linear motor is an electric motor that produces motion in a straight line. Unlike a common rotary motor, a linear motor does not have any moving parts. Instead, it uses electromagnets to create linear force. linear motors are used in a variety of industries, including automotive, aerospace, and manufacturing. They are also used in high-speed trains and maglev trains. For more information about the linear motor, please read the following words.