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.
RB Crossed Roller Bearings are high-precision components featuring cylindrical rollers arranged at 90°angles in alternating directions.This allows a single bearing to handle radial,axial,and moment loads simultaneously,making them ideal for compact,high-stiffness applications like robotics,CNC rotary tables,and medical equipment.Available precision grades cover P5,P4 and P2;inner diameter ranges from 30mm to 1250mm while cross-section height varies between 8mm and 110mm.The rings and rollers are manufactured from GCr15 high-carbon chrome steel with surface hardness HRC 60-62 or corrosion-resistant SUS440C stainless steel,and nylon 66 serves as lightweight bearing cage material.Two sealing options are available:standard open type for clean environment and UU/U contact rubber seal to block dust and liquid splashing with industrial heavy-duty grease lubrication.
Construction and metallurgical equipments refer to a wide range of heavy-duty machinery serving engineering construction,ore smelting,metal processing and bulk material transportation.Typical equipment includes mini excavator swing bases,tower crane rotary parts,concrete machinery,metallurgical roller rotary supports,smelting auxiliary rotary devices and heavy material handling machines.Most rotary spindles of these devices are pre-assembled with gears and reducers before bearing installation,which creates huge assembly obstacles for traditional integral bearings.These devices always operate in extremely harsh environments filled with rock dust,mud,high temperature and metal debris,and endure long-term heavy loads and frequent impact forces.Therefore,the supporting bearings must possess excellent load capacity,structural rigidity,impact resistance and sealing performance.The running state of bearings directly determines the operational stability,safety and overall service life of construction and metallurgical production lines.
Multi-Directional Load Capacity:Unlike standard ball bearings,the crossed arrangement empowers the RB series to accommodate loads from all directions at once.
High Rigidity and Precision:The integration of a preload adjusts the bearing clearance,eliminating internal gaps and allowing for high rotational accuracy and minimal deformation under heavy loads.
Compact Space-Saving Profile:Because one crossed bearing replaces multiple conventional ball or roller bearings,they are exceptionally well-suited for tight,space-constrained assemblies.
Smooth Rotation:Spacer retainers separate the rollers,preventing them from skewing and eliminating friction between rolling elements for a stable,low-torque motion.
Industrial Robotics & Automation:Used in basic motion parts like rotary joints,waists,and wrists for smooth and precise motion control.
Precision Machine Tools:Utilized in the rotating tables of machining centers,rotary units of manipulators,and indexing heads to handle heavy,spinning components.
Medical Equipment:Deployed in sophisticated imaging components like MRI machines,CT scanners,and surgical robots to provide smooth,accurate,and vibration-free movement.
Semiconductor & IC Manufacturing:Provide micron-scale accuracy for wafer handling equipment,photolithography machines,and cleanroom pick-and-place systems.
Optical & Measuring Instruments:Essential for the tracking accuracy of astronomical telescopes,radar antennas,and Coordinate Measuring Machines (CMM).
Simplify Complex On-site Assembly:The separable outer ring can be installed around pre-fitted spindles with gears and reducers without dismantling existing transmission components.It effectively shortens equipment assembly cycles and reduces production and maintenance costs for machinery manufacturers.
Withstand Complex Composite Loads:A single RB bearing replaces multiple bearing sets to synchronously bear equipment self-weight,material load and overturning moment.It simplifies the internal mechanical structure of rotary parts and enhances the overall structural stability of heavy machinery.
Suppress Vibration and Deformation:Ultra-high structural rigidity offsets deformation and jitter caused by heavy loads and sudden impacts during operation.It avoids positioning deviation and component loosening,ensuring safe and stable operation of construction and metallurgical equipment.
Adapt to Harsh Working Environments:Diversified sealing structures block dust,mud and high-temperature residues.Corrosion-resistant stainless steel options resist humid and corrosive workshop environments,protecting internal bearing components from damage.
Reduce Unplanned Downtime:Excellent fatigue and wear resistance enable 24-hour continuous operation of heavy machinery.It cuts the frequency of regular maintenance and bearing replacement,and improves the overall operational efficiency of construction and metallurgical production lines.
Newbeetrans is a professional manufacturer of RB crossed roller bearings.We provide targeted customized bearing solutions for construction & metallurgical equipments and various heavy-duty precision machinery.
Construction & Metallurgy Customization:We develop high-impact RB bearings with enhanced dust-proof and mud-resistant sealing,as well as high-temperature resistant special grease.Custom samples can be delivered within 10-15 days.
Strict Precision Manufacturing:All raceways and rollers adopt super-fine grinding to reach P5/P4/P2 precision standards.Full dimensional inspection is implemented for all finished products.
Fast Global Delivery:Standard RB bearings are kept in stock for prompt shipment,and complete global multi-channel logistics services are available for overseas customers.
Authoritative Quality Certification:Our products comply with ISO 9001 and GB/T 307.1 standards,and official SGS inspection reports can be provided upon request.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276