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.
CRBH cross roller bearings are ultra-precision,high-rigidity bearings featuring cylindrical rollers arranged at right angles between the inner and outer rings.This single-unit design allows them to simultaneously handle complex loads in all directions-radial,axial,and moment.Core Basic Specifications Accuracy grades:P5,P4,P2 ultra-precision levels for micron-level positioning Metric size range:Inner diameter 20–1250 mm,outer diameter 36–1500 mm,cross-section height 8–110 mm;miniature models like CRBH208A with only 8mm cross-section fit tiny compact rotary joints of surgical robotic arms Material options:Bearing rings and rollers adopt GCr15 high-carbon chromium steel (surface hardness HRC 60–62) for standard industrial use;SUS440C stainless steel for corrosion-resistant,cleanroom and medical sterile environments.Cage materials include lightweight Nylon 66,high-strength brass,and customized composite materials Sealing forms:Open type CRBH-A for sterile optical medical cabins;double-side contact rubber sealed CRBH-AUU for wards and lab environments with disinfectant mist Lubrication modes:Medical-grade low-outgassing long-term grease lubrication for sterile,low-pollution medical operating environments (≤120°C);circulating oil lubrication is rarely adopted for medical devices Delivery cycle:Standard stock models 7–15 days;customized medical dedicated non-standard specifications require separate negotiation on production lead time
Medical equipments cover a full range of clinical diagnosis,minimally invasive surgery,rehabilitation and laboratory testing devices used in hospitals,medical examination centers and biomedical labs,mainly divided into four core categories:medical imaging equipment,surgical robotic systems,rehabilitation exoskeleton devices and precision medical testing instruments.Typical products include CT scanners,MRI machines,X-ray diagnostic devices,minimally invasive surgical robots,orthopedic rehabilitation exoskeletons,rotary diagnostic platforms,medical optical inspection equipment and laboratory centrifuges.All core rotary joints,gantry rotating frames and precision swing arms of these devices rely on high-performance rotary bearings as support.Medical scenarios impose extremely strict standards on bearing performance:ultra-low vibration and noise to avoid disturbing patients,zero particle shedding to maintain sterile clean environments,sub-micron repeated positioning accuracy to prevent diagnostic errors or surgical deviation,corrosion resistance to frequent disinfection liquid erosion,and long-term stable operation to reduce hospital equipment downtime.Any bearing jitter,precision drift or particle pollution will directly affect imaging clarity,surgical safety and test result authenticity.
Multi-Directional Load Capacity:Cylindrical rollers are arranged crosswise at 90° angles in a V-groove,allowing a single bearing to handle loads from all directions simultaneously.
Integrated,Non-Separable Rings:Because the inner and outer rings are solid and do not separate,the bearing's performance is unaffected by the surrounding mounting structure.
Smooth Rotation:They utilize separators between the rollers to prevent friction and ensure smooth,stable rotation,even at medium-to-high speeds.
High Precision & Rigidity:The line-contact design between rollers and raceways keeps elastic deformation incredibly small,resulting in superior stiffness and minimal backlash.
Industrial Robotics & Automation:They are the premier choice for articulating robot joints (bases,waists,and wrists) and speed reducers,where they provide the precise motion control and rigidity necessary for heavy or delicate tasks.
Machine Tools:Employed extensively in CNC rotary tables,grinding machines,and turning centers where heavy spinning components meet high resistance,they minimize mounting errors and offer high rigidity during operations.
Medical & Imaging Equipment:Their smooth,vibration-free rotation and compact size make them ideal for positioning articulating arms in labs and ensuring the precise rotation of camera or imaging components in CT scanners and MRI machines.
Semiconductor Manufacturing:They deliver the micron-scale precision and repeatability required for pick-and-place systems and wafer handling equipment.
Medical Equipments:Custom medical-grade CRBH bearings serve as core rotary components for CT/MRI scanner gantries,minimally invasive surgical robot joints,rehabilitation exoskeleton rotating shafts and medical optical rotary inspection platforms,satisfying sterile,low-vibration and high-precision medical application standards.
Ultra-smooth low-vibration rotation ensures clear medical imaging & safe minimally invasive surgery:Preloaded ultra-fine ground raceways eliminate internal bearing clearance of CRBH series.When CT/MRI scanning gantries rotate at constant speed or surgical robot arms perform tiny fine-tuning movements,ultra-low rotation jitter completely avoids image blurring and surgical trajectory deviation.Sub-micron positioning accuracy eliminates diagnostic misjudgment and operation risks caused by mechanical shaking,core guarantee for high-quality medical imaging and precise minimally invasive treatment.
Integrated thin-wall lightweight design miniaturizes medical device structure:CRBH one-piece thin cross-section cancels multi-bearing stacking and auxiliary fixing flanges,greatly reducing the volume and self-weight of rotary components inside medical equipment.Slim robot joints and compact scanning rotary frames make surgical arms more flexible and imaging equipment smaller and portable,optimizing ward and operating room space layout while reducing equipment overall load.
Composite load bearing stabilizes rotary operation under variable medical loads:Medical rotary parts bear multiple superposed loads:imaging gantry self-weight,exoskeleton patient load,endoscope arm eccentric moment.A single CRBH bearing can simultaneously bear radial,axial and overturning loads without combined assembly of multiple bearings,effectively restraining micro deformation during long-time cyclic rotation,keeping scanning frames and robotic arms stable all the time.
Medical customized materials adapt sterile & disinfection environments:Newbeetrans provides SUS440 stainless steel CRBH variants resistant to alcohol and disinfectant corrosion,matched with medical low-outgassing grease and sealed UU structures to block metal abrasive particle shedding.Open CRBH-A models fit Class 100 sterile operating rooms without volatile pollution,meeting hospital sterile production and use requirements and avoiding cross-contamination of patients and instruments.
Low noise operation improves patient experience:Low-friction polished roller end faces reduce rotation friction noise of CRBH bearings to extremely low decibel levels.When CT/MRI scans patients or rehabilitation devices work continuously,the quiet rotary operation avoids frightening anxious patients and creates a more comfortable medical environment.
Long service life lowers hospital equipment maintenance cost:GCr15 or stainless steel bearing rings with surface hardening treatment lift anti-fatigue performance by 30%,adapted to long-cycle uninterrupted hospital operation.Low heat accumulation design avoids thermal expansion precision drift;less frequent disassembly,cleaning and calibration cuts equipment downtime and maintenance labor costs for medical institutions.
Simplify medical equipment assembly and precision debugging:Different from RB split outer ring bearings requiring secondary preload adjustment,CRBH integrated inner and outer rings complete fixed preload at factory stage.Medical equipment manufacturers do not need to design complex clearance adjusting structures for rotary parts,shortening product development,assembly and precision calibration cycles.
Newbeetrans is a professional precision cross roller bearings manufacturer focusing on medical customized CRBH series bearings for all types of medical imaging,surgical robot and rehabilitation equipments.We provide full-size standard CRBH stock and medical-grade targeted customized bearing solutions for medical device manufacturers.
Full precision control:All raceways and cylindrical rollers undergo ultra-precision grinding to reach P5,P4 and P2 ultra-high precision standards.Every medical dedicated CRBH bearing passes strict low-vibration,low-particle and low-outgassing inspection before delivery.
Diverse medical customization capacity:Support SUS440 stainless anti-corrosion versions,silicon nitride ceramic hybrid rollers,medical sterile low-outgassing grease treatment,miniature non-standard cross-section sizes and lightweight brass cage customized models for surgical arms and rehabilitation exoskeletons.
Stable fast delivery:Standard CRBH series in stock for 7–15 days;medical special customized bearings can complete sample delivery within 10–15 days according to drawing and process complexity.
Authoritative quality certification:All CRBH bearings comply with ISO 9001 and GB/T 307.1 precision bearing standards,and SGS low-particle pollution test reports can be provided for medical industry customers upon request.
Global one-stop service:Complete multi-channel global logistics support to deliver medical-grade CRBH bearings to medical equipment manufacturers worldwide,with professional technical engineers providing bearing material,lubricant and model selection guidance for medical rotary mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276