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.
Precision 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.
CT and MRI scanner gantries are the core large rotary frames of medical imaging diagnostic equipment.CT gantries carry X-ray tubes,high-voltage generators and detector panels,performing high-speed 360° rotary scanning around patients to capture tomographic data.MRI gantries integrate powerful magnetic coils,radiofrequency modules and gradient systems,executing precise slow rotation and angle adjustment for soft tissue imaging.The rotary support parts of both gantries are pre-installed with drive motors,deceleration components and sliding ring assemblies on main spindles.During long-cycle clinical operation,rotary frames bear heavy self-weight,alternating overturning moments and continuous start-stop impact loads.Medical equipment demands ultra-low vibration,micro-level rotational precision,low particle generation and noise-free running; any bearing jitter or rotation deviation will produce image artifacts and affect diagnostic accuracy.In addition,the internal environment of medical equipment requires high cleanliness and corrosion resistance,so bearing rigidity,precision and environmental adaptability are critical to stable scanner operation.
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 Medical Equipment Modular Assembly:The integrated RU bearing body with reserved PCD mounting holes can be directly bolted to the gantry main shaft without extra bearing seats or flanges.It fits pre-assembled motors and reducers without dismounting existing drive components,greatly shortening medical equipment assembly and debugging cycles while reducing internal structural gaps that accumulate fine dust,complying with hospital clean equipment standards.
Bear Heavy Gantry Composite Loads Stably:A single RU bearing replaces multiple sets of ordinary bearings to simultaneously bear the heavy self-weight of CT/MRI rotary frames,axial tension and swing overturning moments generated during scanning rotation.Even load distribution prevents spindle deformation under long-term continuous clinical operation,maintaining the stable circular running track of X-ray tubes and magnetic coils.
Eliminate Vibration to Avoid Image Artifacts:Preload structure and ultra-low rotational runout restrain micro-jitter during gantry rotation.Smooth low-torque operation eliminates tiny vibration that causes blurring and ring artifacts on medical images,delivering consistent ultra-precise rotation required for accurate lesion diagnosis.Low running noise also improves patient comfort during scans.
Compact Structure Fits Scanner Frame Layout:Ultra-thin cross-section design saves valuable internal installation space inside CT and MRI gantries.Lightweight bearing structure lowers rotary frame motion inertia,accelerating scanning response speed and supporting high-throughput continuous clinical inspection work.
Adapt Clean & Long-Term Medical Working Conditions:Custom low-particle,medical-grade lubricants and stainless steel RU bearing options are available.The low-wear structure generates minimal debris inside the equipment,avoiding contamination to internal precision optical and magnetic components,and adapting to long 24-hour daily hospital operation cycles.
Cut Medical Equipment Maintenance Costs:High-hardened raceways and rollers deliver outstanding anti-fatigue and anti-wear performance,extending the service life of scanner rotary supports.Low failure frequency reduces equipment downtime in hospitals and the frequency of bearing replacement maintenance,lowering overall medical device operating expenses.
Newbeetrans is a professional manufacturer specializing in RU crossed roller bearings.We deliver customized bearing solutions tailored for CT scanners,MRI equipment and various medical precision rotary machinery.
Medical Equipment Customization:Develop low-vibration,low-particle RU bearings with medical cleanroom lubricants and full stainless steel versions as requested,and customized samples can be finished within 10–15 days.
Strict Precision Manufacturing:All raceways and rollers adopt super-fine grinding to reach P5,P4 and P2 ultra-precision standards.Every bearing undergoes full dimensional and low-particle inspection before shipment.
Efficient Global Delivery:Standard RU bearings are in stock for quick shipment,and we provide complete multi-channel global logistics services for overseas clients.
Authoritative Quality Certification:Our products comply with ISO 9001 and GB/T 307.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