Planetary roller screw mechanisms (PRSMs) are advanced mechanical devices that convert rotational motion into precise linear displacement. Their design capitalises on an array of rolling elements ...

Recently, Shanghai Beite Technology announced a $260 million investment to build a planetary roller screw production base. Meanwhile, several new humanoid robots are being launched in China.

The average planetary roller screw sells for between $1,350 and $2,700, according to the investment bank. While Walter admits, “The logical choice would be just to use rotary actuators at all ...