Faculty of Mechanical Engineering and Mechanics Ningbo University Ningbo 315211 China;
Faculty of Mechanical Engineering and Mechanics Ningbo University Ningbo 315211 China;
Faculty of Mechanical Engineering and Mechanics Ningbo University Ningbo 315211 China;
Beijing Key Laboratory of Long-life Technology of Precise Rotation and Transmission Mechanisms Beijing Institute of Control Engineering Beijing 100029 China;
Beijing Key Laboratory of Long-life Technology of Precise Rotation and Transmission Mechanisms Beijing Institute of Control Engineering Beijing 100029 China;
laser surface texturing; ultrasonic motor; PTFE-based material; friction; wear mechanisms;