The king in the lead screw -- planetary roller lead screw
The planetary roller lead screw is a mechanism that transforms the rotating motion into linear motion. The rolling element between the nut and the lead screw is a screw roller. Many contact lines make the bearing capacity of the planetary roller lead screw very strong.
The planetary roller lead screw is a kind of mechanical device which transforms the rotation motion into linear motion.
Planetary roller lead screw transmission is different. Around the main thread lead screw, 6-12 screw roller lead screws are arranged on the planet, so as to convert the rotation movement of the motor into the linear movement of the lead screw or nut. The planetary roller lead screw can bear heavy load for thousands of hours in extremely hard environment, which makes the planetary roller lead screw an ideal choice for applications requiring continuous working system.
The electric actuator landing gear used in the U.S. F-35B fighter and the electric actuator landing gear of the world's largest Airbus A380 are planetary roller lead screws, which shows how excellent they are.