roller-screw

Planetary Roller Screw

Name: Planetary Roller Screw
Brand: HS LASERTECH

High Load Capacity • Ultra-High Precision • Long Service Life A Planetary Roller Screw (PRS) is a high-performance linear transmission component that converts rotary motion into precise linear motion through multiple threaded rollers instead of recirculating balls. Compared with conventional ball screws, planetary roller screws provide significantly higher load capacity, greater rigidity, superior positioning accuracy, and a much longer service life, making them the preferred solution for demanding industrial applications. Designed for continuous heavy-duty operation, Planetary Roller Screws deliver exceptional motion control performance under high axial loads, high speeds, and harsh operating conditions. Their robust multi-roller contact structure ensures smooth transmission, excellent shock resistance, and outstanding reliability even in the most challenging environments. HY Automation supplies high-quality Planetary Roller Screws in a wide range of specifications and supports customized solutions to meet the requirements of advanced automation equipment and precision machinery.

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Overview

Planetary roller screws have a wide range of applications, such as:
· Machine tools · Aerospace (rockets, satellites, launchers, spacecraft) · Medical · Laser equipment
· Measuring instruments · Biochemical industry · Injection molding machines · Bending machines
· Optical instruments · Automotive manufacturing · Petroleum industry · Telescopes · Semiconductors
· Aviation industry (aircraft, helicopters, drones) · Nuclear industry · Printing
· Presses · Continuous casting machines · Electric cylinders · Valve control

Applications in Robotics
Planetary roller screws play a pivotal role in humanoid robotics technology, serving as a key component for achieving high-precision, high-efficiency motion. Compared to traditional lead screws, planetary roller screws offer superior transmission accuracy, higher load-bearing capacity, and a longer service life, making them indispensable to humanoid robotics.
The unique structure of planetary roller screws enables smoother and more precise motion control. Power transmission occurs via a planetary motion mechanism between the internal rollers and the screw shaft; this design ensures excellent stability and accuracy even under heavy loads and high-speed operation. Furthermore, their low coefficient of friction and high transmission efficiency minimize energy loss and heat generation, thereby enhancing the operational efficiency and durability of humanoid robots.