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 shafts inside scanning equipment 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 sterile medical working conditions.Cage materials include lightweight Nylon 66,high-strength brass,and customized composite materials Sealing forms:Open type CRBH-A for dust-free constant-temperature scanning cabins;double-side contact rubber sealed CRBH-AUU for ward environments with disinfectant mist Lubrication modes:Medical low-outgassing long-term grease lubrication for sterile medical scanning rooms (≤120°C);circulating oil lubrication for ultra-high speed ≤3000 rpm heavy-load scanning rotary frames Delivery cycle:Standard stock models 7–15 days;custom medical scanning equipment dedicated non-standard specifications require separate negotiation on production lead time.
Medical scanning devices are core clinical imaging diagnostic equipment used in hospitals and medical examination centers,covering CT scanners,MRI machines,ultrasound rotary scanning platforms,3D optical medical scanners,radiographic rotary inspection equipment and PET scanning systems.The core rotary components of these devices include large scanning gantries,rotary detector swing arms,patient positioning turntables and multi-angle optical scanning rotating shafts.During continuous clinical scanning,rotary structures bear huge eccentric overturning moment from X-ray tubes,detectors and heavy gantry components,as well as alternating radial and axial loads from patient platforms.Medical scanning equipment has extremely strict mechanical requirements: ultra-low vibration and silent rotation to avoid image blurring,zero metal particle shedding to keep sterile diagnostic environments,long-term stable precision under continuous high-cycle rotation,and excellent anti-corrosion performance against medical disinfectants.Any bearing shake,precision drift or particle pollution will lead to distorted scanning images,misdiagnosis of lesions and frequent equipment shutdown for maintenance.
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 scanning devices:Medical sterile customized CRBH low-outgassing bearings act as core rotary support for CT/MRI scanning gantries,rotary detector swing arms,patient positioning turntables and optical medical scanning rotary shafts,supplying vibration-free,high-rigidity rotary performance for clinical imaging diagnosis equipment.
Ultra-smooth low-vibration rotation eliminates blurred scanning images:CRBH factory preloaded structure thoroughly eliminates internal clearance,paired with precisely polished low-friction roller end faces.When CT/MRI gantries rotate at constant high speed for full-body scanning,ultra-low micro-jitter completely avoids optical signal distortion and image blurring,ensuring clear lesion imaging for doctors to achieve accurate diagnosis,greatly reducing the risk of misjudgment caused by mechanical vibration.
Single bearing bears heavy eccentric scanning composite loads:Medical scanning gantries and detector arms carry heavy X-ray tubes and detector modules,generating huge overturning moment during 360° cyclic rotation.A single CRBH bearing replaces multiple sets of combined bearings to evenly disperse radial,axial and eccentric moment loads,effectively restraining rotary frame micro-deformation under long-hour continuous scanning and maintaining stable rotary track of imaging components.
Ultra-thin integrated structure miniaturizes scanning equipment layout:CRBH thin-wall integral design cancels multi-bearing stacked assemblies and auxiliary fixing flanges,greatly reducing the overall thickness and occupied space of scanning rotary frames.Slim rotary structures shrink the outer size of CT/MRI devices,lower equipment floor space requirements and optimize ward placement space layout for medical institutions.
Medical customized materials meet sterile ward standards:Newbeetrans provides SUS440 stainless steel CRBH variants resistant to alcohol and medical disinfectants,matched with low-outgassing medical special grease and sealed UU structures to block metal abrasive particle shedding.Open clean-grade CRBH-A models release no volatile substances inside scanning cabins,preventing cross-contamination of patients and diagnostic equipment and complying with medical biocompatibility standards.
Low-noise operation improves patient scanning experience:Ultra-low friction roller matching design greatly cuts bearing running noise during scanning.Silent rotary operation relieves anxiety and fear of patients undergoing long-time CT/MRI scans,creating a quiet,comfortable diagnostic environment for clinical examination.
Long service life reduces hospital equipment downtime:GCr15 or stainless steel bearing rings with surface hardening treatment improve anti-fatigue performance by 30%,adapting thousands of daily clinical scanning cycles.Low heat accumulation design avoids thermal expansion precision drift under constant-temperature ward environments;less frequent disassembly,cleaning and calibration cuts hospital equipment maintenance frequency and standby downtime.
Simplify scanning equipment mechanical design and assembly:Different from RB split outer ring bearings requiring independent preload adjustment during assembly,CRBH integrated inner and outer rings finish fixed preload at the factory stage.Medical imaging equipment manufacturers do not need to design complex clearance adjusting mechanisms for gantry rotary structures,shortening product R&D,assembly and precision calibration cycles of scanning devices.
Manufacturer of CRBH Cross Roller Bearings
Newbeetrans is a professional precision cross roller bearings manufacturer focusing on medical scanning equipment dedicated CRBH series bearings for CT,MRI,ultrasound and optical diagnostic scanning devices.We provide full-size standard CRBH stock and medical sterile customized bearing solutions for medical imaging equipment 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 scanning equipment special CRBH bearing passes strict low-vibration,zero-particle and low-outgassing sterile 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 thin-section non-standard sizes and lightweight brass cage customized models for scanning gantries and detector swing arms.
Stable fast delivery:Standard CRBH series in stock for 7–15 days;medical scanning 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 sterile low-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 device manufacturers worldwide,with professional technical engineers providing bearing material,lubricant and model selection guidance for scanning gantry rotary mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
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sales@newbeetrans.com
+8615090185276