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 compact thin rotary turrets of small AGV load platforms.Material options:Bearing rings and rollers adopt GCr15 high-carbon chromium steel (surface hardness HRC 60–62) for standard warehouse and factory workshop use;SUS440C stainless steel for damp,chemical splashing food/pharma logistics workshops.Cage materials include lightweight Nylon 66,high-strength brass,and customized composite materials.Sealing forms:Open type CRBH-A for clean dust-free electronic warehouse AGVs;double-side contact rubber sealed CRBH-AUU for dusty machining factories and damp logistics storage environments Lubrication modes:Long-term anti-dust general grease lubrication for 24h continuous AGV operation (≤120°C);circulating oil lubrication for heavy-duty high-frequency transport rotary platforms ≤3000 rpm Delivery cycle:Standard stock models 7–15 days;customized AGV dedicated non-standard specifications require separate negotiation on production lead time.
AGV stands for Automated Guided Vehicle,autonomous unmanned transport robots widely deployed in intelligent warehouses,automotive production lines,3C manufacturing workshops,food and pharmaceutical logistics workshops and cold storage facilities.Automated transport rotary platforms are the core rotary modules mounted on AGV car bodies or fixed material transfer stations,responsible for 360° horizontal rotation of pallets,workpieces and cargo trays.These rotary platforms bear heavy pallet dead weight,uneven eccentric cargo load and frequent alternating overturning moment during continuous docking,loading and unloading.They need to complete precise angle adjustment in narrow workshop aisles,realize zero-offset docking with production line stations and storage racks.AGV rotary platforms face harsh working conditions:long-cycle 24-hour uninterrupted reciprocating rotation,metal dust,cutting fluid splashes and large temperature fluctuation in cold storage workshops.Ordinary bearings easily produce clearance jitter,rust and precision attenuation under heavy cyclic loads,leading to inaccurate docking,scratched workpieces and frequent AGV downtime.Therefore,core rotary bearings must feature high load capacity,low backlash,dustproof sealing and long-term stable rigidity.
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.
AGV & automated transport rotary platforms:Dustproof sealed CRBH bearings serve core rotary support for AGV pallet turrets,stationary automated transfer rotary tables,lifting rotation modules of AMR robots and heavy-load logistics turning platforms,realizing high-rigidity zero-backlash cargo rotation and accurate station docking for unmanned transport equipment.
Single bearing bears heavy eccentric pallet loads to avoid platform deflection:AGV rotary platforms carry uneven stacked pallets and heavy metal workpieces,generating large superimposed radial,axial and overturning moment during rotation.A single CRBH bearing replaces multiple sets of combined bearing structures to evenly disperse eccentric loads,greatly reducing elastic deformation of the turret surface during loading/unloading,preventing workpiece sliding and scratch risks caused by tilted platforms.
Zero-backlash precision rotation realizes error-free station docking:CRBH factory preloading completely eliminates internal bearing clearance.When AGVs rotate to align production line fixtures and warehouse storage positions,ultra-low rotation runout ensures repeatable micron-level angle positioning,effectively solving docking deviation problems that often occur with ordinary loose bearings,improving unmanned logistics transfer pass rate and production efficiency.
Ultra-thin integrated structure optimizes AGV body layout:CRBH thin-wall integral design cancels bulky multi-bearing stacked assemblies and auxiliary fixing brackets,greatly reducing the overall height of AGV rotary modules.Slim turret structure lowers the whole vehicle gravity center of unmanned transport robots,enhancing driving stability while reserving more internal space for AGV batteries,navigation sensors and lifting mechanisms.
Double UU sealing adapts dusty & damp factory logistics environments:CRBH-AUU double contact rubber seals block workshop metal dust,cutting fluid splashes and condensed water vapor; SUS440 stainless customized versions resist corrosion in cold storage and food processing humid workshops.The sealed structure avoids raceway rust and abrasive particle wear,extending bearing service life under 24-hour continuous AGV cyclic operation.
Low-friction smooth rotation reduces AGV power consumption:Precision polished roller contact surfaces lower rotational friction torque significantly.AGV servo motors require smaller output power to drive heavy rotary platforms,reducing battery power consumption per transport cycle and extending single-charge continuous working time of unmanned vehicles.
Strong anti-fatigue performance cuts AGV maintenance downtime:GCr15 surface-hardened bearing rings improve anti-fatigue performance by 30%,adapting millions of frequent start-stop rotation cycles of logistics turrets.Less bearing wear reduces regular disassembly,cleaning and replacement frequency of AGV rotary parts,lowering factory unmanned equipment maintenance labor and production line standby loss.
Simplify AGV mechanical development and assembly flow:Different from RB split outer ring bearings requiring on-site preload adjustment,CRBH integrated inner and outer rings finish fixed preload at factory stage.AGV equipment manufacturers do not need to design complex clearance adjusting structures for turret housings,shortening product R&D,assembly and precision calibration cycles of unmanned transport rotary modules.
Newbeetrans is a professional precision cross roller bearings manufacturer focusing on customized CRBH series bearings for AGV pallet turrets and all kinds of automated transport rotary platforms.We provide full-size standard CRBH stock and dustproof heavy-load customized bearing solutions for unmanned logistics 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 AGV dedicated CRBH bearing passes heavy load compression,sealing dustproof and low-backlash strict inspection before delivery.
Diverse logistics equipment customization capacity:Support SUS440 stainless anti-rust versions,double UU dustproof & splash-proof sealing,heavy-load reinforced roller design and miniature thin cross-section customized models for small AMR lifting rotary modules and heavy industrial transport turrets.
Stable fast delivery:Standard CRBH series in stock for 7–15 days;AGV rotary platform customized bearings can complete sample delivery within 10–15 days according to sealing and load-bearing process complexity.
Authoritative quality certification:All CRBH bearings comply with ISO 9001 and GB/T 307.1 precision bearing standards,and SGS dustproof salt-fog test reports for factory logistics use can be provided upon client request.
Global one-stop service:Complete multi-channel global logistics support to deliver heavy-duty CRBH bearings to unmanned vehicle and automated transport equipment manufacturers worldwide,with professional technical engineers providing bearing load,sealing and model selection guidance for AGV rotary turret mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276