#Planetary roller screws (8)

Xiling Power XL-PRS02

Xiling Power (300733) XL-PRS02 . Planetary roller screw technology for humanoid robot linear joints. In partnership with Zhejiang Humanoid Robot Innovation Center.

COMPONENT

Silex PowerXilingPlanetary roller screwsLinear actuatorsHumanoid

Xiling Power XL-PRS01

Xiling Power (300733) XL-PRS01 . Planetary roller screw technology for humanoid robot linear joints. In partnership with Zhejiang Humanoid Robot Innovation Center.

COMPONENT

Silex PowerXilingPlanetary roller screwsLinear actuatorsHumanoid

Rollvis RVD Series Differential Planetary Roller Screws

Rollvis RVD differential planetary roller screws use two nuts with slightly different leads preloaded against each other via an adjusting nut, delivering high rigidity and near-zero axial play (≤0.02 mm). With no recirculating parts they run quietly at high speed, at 80-95% efficiency. Shaft diameters 6.35-32 mm, leads 0.525-10 mm, dynamic ratings 21.6-616 kN, static 39.7-1140 kN, speeds up to 8000 rpm, 6-12 roller circuits, standard lengths 100-280 mm up to 2500 mm max, with hollow-shaft and through-shaft options for servo cylinders and humanoid linear joints.

COMPONENT

Planetary roller screwsDifferential ScrewRVDHigh rigidityPre-compression

Rollvis BU Series Support Bearing Units for Planetary Roller Screws

Rollvis BU support bearing units are engineered for the high-speed, high-acceleration duty of planetary roller screws: fixed-end BUC units use two deep-groove ball bearings for bidirectional axial loads, while floating-end BUM units combine a cylindrical roller with a deep-groove ball bearing to compensate thermal growth. Bore sizes 8-32 mm, load ratings up to 100 kN, grease nipples standard with optional oil ports, four-screw mounting, keyway and adjustable radial/axial play options - the matching support hardware for servo cylinders and humanoid linear actuators.

COMPONENT

Support Bearing SeatPlanetary roller screwsBUBearing UnitRollvis

Wheeled

CX Robotics Xiaoman M-Series High-Load Wheeled Elevating Humanoid Robot

Changxing Power

WheeledChangxing Power

CX Robotics CXL Force-Controlled Linear Actuator Series

CX Robotics (Beijing Changxing Power Robot Technology Co., Ltd., Beijing, military-grade integrated linear joint module specialist) self-developed CXL force-controlled linear actuator series with a proprietary mechatronic-control trinity design: in-house frameless torque motor, driver and high-precision planetary roller screw deeply integrated in one joint module for plug-and-play precise force control; three sizes CXL60/CXL200/CXL400 with rated/peak thrust 600/1500 N, 2000/5400 N, 4000/12000 N, max speed 83/120/180 mm/s, 0.02 mm repeatability, 40/60/80 mm stroke, 40/57/75 mm OD, 135/200/246 mm length, 0.6/1.4/3.1 kg mass on a 48 V platform, rated/max power 48/78 W up to 635/1545 W; 17-bit magnetic encoder standard, optional force sensor (0.5% F.S.), EtherCAT/CANopen/Modbus. Targets humanoid leg/waist linear joints, wheeled lifting columns and high thrust-density applications.

COMPONENT

Force-Controlled Linear ActuatorChangxing PowerCX RoboticsCXLPlanetary roller screws

Rollvis RV / HRV Planetary Roller Screws

Swiss Rollvis (since 1970) focuses on planetary roller screws: 3.5-210 mm shaft diameters, 1.0-50 mm leads and 3.9-3800 kN dynamic load ratings; the HRV heavy-duty series starts at 60 mm shafts with even higher load density for electro-mechanical replacement of hydraulics. Internal synchronizing gears with precision-ground shaft, rollers and nut give up to 15x ball-screw life, >40 in/sec speed and 3G acceleration; ISO 9001:2015 and EN 9100:2018 certified for robotic joints, prosthetics, injection molding and aerospace.

COMPONENT

Planetary roller screwsRollvisLinear actuatorsElectromechanical Actuation

Ewellix (Schaeffler) Planetary Roller Screws

Ewellix (now Schaeffler Linear Motion) planetary roller screws use a non-recirculating planetary design for ultimate drive performance: official technical data — nominal diameter 8-240 mm, lead 2-50 mm, basic dynamic load capacity up to 3,994 kN, static up to 23,387 kN, n×d0 up to 160,000, acceleration up to 12,000 rad/s², linear speed up to 1.8 m/s; nut types SRC/BRC, SRF/BRF, SRP/BRP, preloaded split PRU/PRK and high-performance HRC/HRF/HRP.

COMPONENT

Planetary roller screwsRoller ScrewEwellixSchaefflerHigh Load