NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
NewBee Machinery is a professional machinery parts manufacturer providing high quality precision bearings, high-quality non-standard transmission components, and intelligent CNC equipment and more.
RU Crossed Roller Bearings are compact,high-rigidity rotational bearings featuring cylindrical rollers arranged at 90° angles in a V-groove.Unlike traditional bearings,their unique cross-pattern allows a single bearing to simultaneously handle complex multi-directional loads-including radial,axial,and moment (tilting) forces.These bearings are available in P5,P4 and P2 precision grades.The inner diameter ranges from 10mm to 350mm,the outer diameter from 52mm to 540mm,and the cross-section height varies between 8mm and 45mm.The mounting holes support specifications from M3 to M12.For materials,bearing rings and rollers are made of GCr15 high-carbon chromium steel with a surface hardness of HRC 60-62,or corrosion-resistant SUS440C stainless steel.Nylon 66 or high-strength brass is selected as the cage material.Two main sealing types are provided:open type for clean working environments and U/UU contact rubber seal for dust and splash resistance.In terms of lubrication,both standard grease lubrication and circulating oil lubrication for heavy-duty use are available.Standard RU models can be delivered within 7-15 days,while customized products will be scheduled according to specific technical requirements.
Humanoid and collaborative robots represent two major evolutions in modern automation.While they both focus on working alongside people,humanoid robots mimic the human body to adapt to environments built for humans,whereas collaborative robots (cobots) are specialized tools designed to share tasks safely with humans.
Multi-Directional Load Capacity:Because the cylindrical rollers are alternately crossed at right angles,a single bearing can support radial,axial,and tilting moment loads at the same time.
Integrated Mounting Design:Unlike traditional bearings,RU series inner and outer rings are fully integrated.They include pre-drilled mounting holes,eliminating the need for a separate presser flange or fixing housing.
High Rigidity and Accuracy:Bearings are preloaded,minimizing elastic deformation under heavy loads and ensuring high running accuracy (often up to P5,P4,or P2 grades).
Space and Weight Efficiency:By consolidating multiple bearings into a single compact unit,equipment size and weight can be significantly reduced.
Stable Rotational Torque:Equipped with spacer retainers between the rollers,they offer a low friction coefficient,resulting in highly stable,smooth rotational torque.
Industrial Robotics:Found in basic motion parts such as robot waists,elbows,and rotary joints.Their rigidity allows them to support heavy moment loads at high speeds.
Precision Machine Tools:Utilized in rotary tables,index heads,and spindles for CNC machines and machining centers.
Semiconductor Fabrication:Provide the micron-scale accuracy required for wafer transfer robot arms,photolithography machines,and precise rotary indexing.
Medical & Lab Equipment:Built into rotating parts of advanced diagnostic tools like CT scanners,MRI machines,and robotic surgery components.
Optical & Measuring Instruments:Employed in high-precision astronomical telescopes,CMM (Coordinate Measuring Machines) rotary tables,and laser measuring devices.
Simplify Modular Installation:The integral structure with prefabricated mounting holes allows direct bolt connection with robot structural parts.It can be installed on pre-assembled spindles with gears and reducers without extra disassembly,greatly shortening robot assembly cycles and lowering production and assembly costs for robot manufacturers.
Withstand Complex Dynamic Loads:A single RU bearing replaces multiple ordinary bearing sets to synchronously bear the robot’s self-weight,workpiece load and swing overturning moments.The rational force distribution prevents local stress concentration and enhances the overall structural stability of robot joints.
Ensure High-precision Movement:Ultra-low rotational runout and high rigidity keep consistent repeated positioning accuracy during frequent start-stop and swing movements.It eliminates positioning deviation and motion jitter,guaranteeing precise operation for assembly,handling and other robot tasks.
Adapt to Compact Joint Layout:The ultra-thin and lightweight profile is highly compatible with the limited internal space of robot joints.It reduces the overall motion inertia of robotic arms and improves the flexible response speed of humanoid and collaborative robots.
Adapt to Various Working Environments:Multiple sealing solutions block workshop dust and debris.Optional stainless steel materials and special lubricants cope with humid and slightly corrosive working conditions,protecting internal components and maintaining long-term stable performance.
Reduce Operational Downtime:Superior fatigue resistance and wear resistance support 24-hour continuous operation of robots.The reliable structure cuts the frequency of routine maintenance and bearing replacement,improving the continuous working efficiency of automated production lines.
Newbeetrans is a professional manufacturer specializing in RU crossed roller bearings.We provide one-stop customized bearing solutions tailored for humanoid & collaborative robots and various high-precision rotary equipment.
Robot-oriented Customization:We develop zero-backlash,high-rigidity RU bearings with special low-noise and long-life lubricants.Full stainless steel materials and enhanced sealing structures are available as required,and customized samples can be delivered within 10-15 days.
Strict Precision Manufacturing:All raceways and rollers adopt super-fine grinding to meet P5/P4/P2 precision standards.Every product undergoes full dimensional inspection to guarantee stable quality.
Efficient Global Delivery:Standard RU bearings are in stock for prompt shipment,and we provide complete multi-channel global logistics services for overseas customers.
Authoritative Quality Certification:Our products comply with ISO 9001 and GB/T 307.1 standards,and official SGS inspection reports can be provided upon request.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276