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.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 structures inside alignment platforms.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 vacuum working conditions.Cage materials include lightweight Nylon 66,high-strength brass,and customized composite materials Sealing forms:Open type CRBH for ultra-clean LCD dust-free workshops;double-side contact rubber sealed CRBH-AUU for environments with tiny glass dust and coating mist Lubrication modes:Long-term low-outgassing grease lubrication for Class 100/1000 cleanrooms (≤120°C);circulating oil lubrication for ultra-high speed ≤3000 rpm heavy-load alignment turntables Delivery cycle:Standard stock models 7-15 days;customized non-standard specifications require separate negotiation on production lead time.
LCD & flat panel precision alignment platforms (also known as UVW/XYθ alignment stages) are core core automation motion units for LCD,OLED,Mini/Micro LED panel manufacturing lines.They are widely equipped on lamination machines,exposure equipment,optical inspection devices,glass cutting machines and polarizer attaching equipment.Driven by servo motors and precision reducers,they realize micron-level X/Y translation and tiny θ rotary fine-tuning to precisely align glass substrates,color filters,polarizing films and backlight modules.During continuous 24-hour mass production,the rotary core of alignment platforms bears multiple compound loads:self-weight of large-size glass panels,clamping axial force,and alternating overturning moment generated by eccentric workpiece placement.LCD production workshops are strict constant-temperature ultra-clean environments with glass micro-powder,organic coating volatile substances,and zero particle shedding requirements.Any tiny rotation jitter,angular runout or precision drift of the bearing will directly cause alignment offset,pixel dislocation,bubble defects and massive scrapping of expensive display panels.Therefore,the rotary bearing must have ultra-high rigidity,vibration-free smooth rotation and cleanroom environmental adaptability.
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.
LCD/Panel Precision Alignment Platforms:Serve as the core rotary bearing for XYθ/UVW alignment stages,panel lamination rotary units,glass inspection swing mechanisms and polarizer positioning turntables,providing vibration-free,ultra-precise rotary fine-tuning for flat panel alignment processes.
Eliminate micro-jitter to achieve sub-micron alignment accuracy:CRBH bearings adopt factory preloaded ultra-fine ground raceways to eliminate internal clearance completely.During tiny θ angle fine-tuning of panel alignment,ultra-low rotation runout restrains all micro-vibration,avoiding optical imaging distortion and pixel misalignment caused by stage shaking.Stable repeated angular positioning guarantees perfect fitting between upper and lower glass substrates,drastically reducing panel reject rate from alignment defects.
Bear multi-directional composite loads to stabilize large panel platforms:Large-size LCD/OLED glass panels bring heavy eccentric loads during alignment.A single CRBH bearing can synchronously bear radial plate weight,axial clamping pressure and overturning moment,evenly distributing stress without local deformation.It maintains absolute flatness of the platform during long-cycle reciprocating fine adjustment,preventing substrate tilt and offset in high-speed mass production.
Ultra-thin integrated structure optimizes cleanroom equipment layout:CRBH thin-wall one-piece design cancels stacked multi-bearing assemblies and auxiliary fixing flanges,greatly reducing the overall height of alignment stages.The low-profile structure shortens the overall size of lamination and inspection machines,saving valuable space inside dust-free production lines and facilitating multi-line compact layout of panel manufacturing equipment.
Meet strict ultra-clean production environment standards:Two matching versions satisfy LCD workshop demands:open CRBH-A models with low-outgassing clean grease for optical inspection cabins to avoid optical lens contamination;CRBH-AUU double rubber sealed bearings block glass dust and coating mist,preventing metal particle shedding that pollutes display substrates.SUS440 stainless customized CRBH variants resist weak organic solvent corrosion from polarizer adhesives.
Extend service life and reduce cleanroom production downtime:GCr15 bearing rings and rollers with surface hardening treatment boost anti-fatigue performance by 30%.Polished roller end faces lower friction heat generation,avoiding thermal expansion-induced precision drift under constant-temperature workshop conditions.Less frequent disassembly cleaning and calibration improves continuous operation efficiency of panel production lines.
Simplify platform mechanical design and assembly debugging:Unlike RB split outer ring bearings requiring secondary preload adjustment after installation,CRBH integrated inner and outer rings finish fixed preload at factory.It reduces structural design difficulty of alignment stage bases and shortens precision calibration cycles for equipment manufacturers.Custom ceramic roller,special vacuum lubrication and non-standard size CRBH bearings can match small mobile alignment units and heavy large-panel turntables without extra mechanical modification.
Newbeetrans is a professional precision cross roller bearing manufacturer focusing on CRBH series integrated cross roller bearings for LCD and flat panel precision alignment platforms.We provide full-size standard CRBH stock and targeted customized bearing solutions for display automation 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 finished bearing passes strict rotation runout,rigidity and low-particle shedding inspection before delivery,compatible with Class 100/1000 cleanroom standards.
Diverse customized capacity:Support SUS440 stainless steel anti-corrosion versions,ceramic roller hybrid bearings,vacuum low-outgassing cleanroom lubrication treatment,non-standard inner/outer diameter cross-section sizes and special brass cage high-strength customized models for small precision alignment stages and large-size glass turntables.
Stable fast delivery:Standard CRBH series in stock for 7-15 days shipment;customized panel equipment special bearings can complete sample delivery within 10-15 days according to drawing complexity.
Authoritative quality certification:All CRBH bearings comply with ISO 9001 and GB/T 307.1 precision bearing standards,and official SGS inspection test reports can be provided upon client request.
Global one-stop service:Complete multi-channel global logistics support to deliver CRBH bearings to display equipment manufacturers worldwide,with professional technical engineers providing bearing selection and installation matching guidance for alignment stage rotary mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276