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 rotary shafts of high-temp humid production 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,high-temperature and high-humidity workshop conditions.Cage materials include lightweight Nylon 66,high-strength brass,and customized composite materials.Sealing forms:Open type CRBH-A for dry high-temperature clean furnaces;double-side contact rubber sealed CRBH-AUU with high-temperature resistant rubber for humid,steamy and corrosive production lines Lubrication modes:High-temperature long-life grease lubrication (-40℃~180℃) for hot and humid workshop continuous operation;circulating oil lubrication for ultra-high speed ≤3000 rpm heavy-load high-temperature equipment.Delivery cycle:Standard stock models 7–15 days;customized high-temperature & humid dedicated non-standard specifications require separate negotiation on production lead time.
High-temperature & humid industrial environments refer to harsh production workshop conditions with long-term elevated ambient temperature above 60℃ and relative humidity higher than 70%,often accompanied by water vapor,steam,acid/alkali mist,condensed water droplets and corrosive dust.Typical industries covering such environments include food processing machinery,ceramic kiln automation equipment,textile printing & dyeing machines,marine automation devices,chemical processing rotary platforms,agricultural harvesting equipment and underground mining rotary mechanisms.In these harsh working scenarios,equipment rotary components face multiple severe threats:high temperature accelerates grease volatilization and material thermal expansion;high humidity easily causes bearing surface rust and internal raceway corrosion;condensed water and chemical mist erode metal surfaces and damage normal lubrication film.Ordinary bearings will quickly rust,lose precision and suffer jamming failure under long-cycle operation,leading to frequent equipment shutdown and production interruption.Therefore,core rotary bearings must possess high-temperature resistance,anti-rust,waterproof sealing and stable precision retention performance to adapt to such complex harsh environments.
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.
High-temperature & humid industrial environments:High-temp resistant sealed SUS440 customized CRBH bearings serve as core rotary supports for food processing rotary turrets,ceramic kiln transfer mechanisms,printing & dyeing swing arms,marine monitoring PTUs and chemical equipment indexing platforms,stable long-term operation under hot,steamy and corrosive workshop conditions.
High-temperature resistant structure avoids precision drift from thermal expansion:CRBH integral inner and outer rings adopt uniform heat treatment process with consistent thermal expansion coefficient,matched special high-temperature grease will not volatilize or dry out under long-term 120℃ continuous working temperature.Compared with split bearing structures,CRBH effectively prevents clearance change and rotation jitter caused by uneven heating,keeping positioning precision stable in hot production lines.
Stainless steel + double sealing structure prevents humid rust and water erosion:Newbeetrans provides SUS440 stainless steel CRBH variants with excellent anti-rust performance against condensed water and steam;CRBH-AUU high-temperature resistant double rubber seals block water vapor,acid mist and dust from entering bearing internal raceways.It thoroughly solves the problem of inner ring,roller rust failure common for ordinary bearings in high-humidity workshops,greatly extending bearing service life.
Single integrated bearing resists composite loads under harsh hot-humid working conditions:High-temperature humid production equipment rotary arms bear workpiece weight,alternate axial pushing force and continuous overturning moment during cyclic conveying.A single CRBH bearing replaces multiple sets of combined bearings to evenly disperse multi-directional stress,avoiding cantilever arm bending deformation under high-temperature softening environment and stable workpiece transfer operation.
Custom high-temperature lubricant maintains stable low-friction rotation:Special wide-temperature anti-hydrolysis grease for CRBH will not emulsify and lose lubrication effect when encountering water vapor in humid air,still maintain low friction torque under alternating hot and cold temperature cycles,reduce bearing wear and abnormal noise caused by insufficient lubrication.
Compact thin-wall design adapts narrow high-temperature equipment internal layout:CRBH ultra-thin cross-section cancels extra bearing fixing supports,reduces heat accumulation area inside confined high-temperature furnace equipment,optimizes heat dissipation effect of rotary components,avoids local overheating damage to bearings in narrow sealed hot chambers.
Reduce equipment downtime and maintenance cost in harsh production lines:GCr15 or stainless steel CRBH with surface hardening treatment has 30% improved anti-fatigue performance,sealed anti-corrosion structure greatly lowers disassembly cleaning and replacement frequency of bearings in hot-humid workshops,cuts production line stop loss caused by bearing failure and reduces factory after-sales maintenance labor cost.
Simplify mechanical design of high-temperature humid processing equipment:Different from RB split outer ring bearings requiring secondary preload adjustment,CRBH integrated inner and outer rings complete fixed preload at factory stage.Equipment manufacturers do not need to design complex waterproof heat-insulating clearance adjusting structures for rotary shafts,shortening product development,assembly and precision debugging cycles of hot-humid industrial automation equipment.
Newbeetrans is a professional precision cross roller bearings manufacturer focusing on customized CRBH series bearings for all kinds of high-temperature & humid industrial automation equipment.We provide full-size standard CRBH stock and targeted high-temperature anti-rust customized bearing solutions for food,ceramic,textile,chemical and marine 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 high-temperature & humidity dedicated CRBH bearing passes high-temperature aging,salt spray anti-corrosion and sealing waterproof strict inspection before delivery.
Diverse harsh environment customization capacity:Support SUS440 stainless anti-rust versions,high-temperature wide-temperature grease matching,heat-resistant double UU sealing structure,ceramic hybrid rollers and non-standard miniature thin cross-section customized models for kiln transfer robots and printing & dyeing swing mechanisms.
Stable fast delivery:Standard CRBH series in stock for 7–15 days;high-temperature & humid customized bearings can complete sample delivery within 10–15 days according to sealing and heat-resistant process complexity.
Authoritative quality certification:All CRBH bearings comply with ISO 9001 and GB/T 307.1 precision bearing standards,and SGS high temperature resistance & salt fog corrosion test reports can be provided upon client request.
Global one-stop service:Complete multi-channel global logistics support to deliver heat-resistant anti-rust CRBH bearings to industrial equipment manufacturers worldwide,with professional technical engineers providing bearing material,seal and lubricant selection guidance for hot-humid rotary mechanisms.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276