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.
Precision RU Crossed Roller Bearings are compact,high-rigidity rotational bearings featuring cylindrical rollers arranged at 90° angles in a V-groove.Unlike traditional bearings,their unique cross-pattern allows a single bearing to simultaneously handle complex multi-directional loads-including radial,axial,and moment (tilting) forces.These bearings are available in P5,P4 and P2 precision grades.The inner diameter ranges from 10mm to 350mm,the outer diameter from 52mm to 540mm,and the cross-section height varies between 8mm and 45mm.The mounting holes support specifications from M3 to M12.For materials,bearing rings and rollers are made of GCr15 high-carbon chromium steel with a surface hardness of HRC 60-62,or corrosion-resistant SUS440C stainless steel.Nylon 66 or high-strength brass is selected as the cage material.Two main sealing types are provided:aopen type for clean working environments and U/UU contact rubber seal for dust and splash resistance.In terms of lubrication,both standard grease lubrication and circulating oil lubrication for heavy-duty use are available.Standard RU models can be delivered within 7-15 days,while customized products will be scheduled according to specific technical requirements.
3D laser cutting and welding equipments are advanced multi-axis CNC processing machines widely applied in automotive manufacturing,aerospace,new energy,hardware processing and other key industries.Different from traditional 2D laser devices,they adopt multi-link and multi-axis linkage structures,enabling 360° all-round cutting,three-dimensional seam welding and complex curved surface processing on workpieces.The core rotating parts include laser head rotary shafts,workpiece indexing turntables and swing mechanisms.Most rotary spindles of these devices are pre-assembled with gears,reducers and servo components before bearing installation.During long-term operation,the rotary systems have to withstand frequent start-stop movements,alternating impact loads,as well as the self-weight of laser components and workpieces.Moreover,the working environment is filled with metal dust,welding fumes,high-temperature splashes and cutting debris.Therefore,the supporting bearings must possess ultra-high rotational accuracy,strong rigidity,excellent impact resistance and reliable sealing performance.The running state of bearings directly affects the processing precision,surface quality and continuous working efficiency of laser cutting and welding products.
Multi-Directional Load Capacity:Because the cylindrical rollers are alternately crossed at right angles,a single bearing can support radial,axial,and tilting moment loads at the same time.
Integrated Mounting Design:Unlike traditional bearings,RU series inner and outer rings are fully integrated.They include pre-drilled mounting holes,eliminating the need for a separate presser flange or fixing housing.
High Rigidity and Accuracy:Bearings are preloaded,minimizing elastic deformation under heavy loads and ensuring high running accuracy (often up to P5,P4,or P2 grades).
Space and Weight Efficiency:By consolidating multiple bearings into a single compact unit,equipment size and weight can be significantly reduced.
Stable Rotational Torque:Equipped with spacer retainers between the rollers,they offer a low friction coefficient,resulting in highly stable,smooth rotational torque.
Industrial Robotics:Found in basic motion parts such as robot waists,elbows,and rotary joints.Their rigidity allows them to support heavy moment loads at high speeds.
Precision Machine Tools:Utilized in rotary tables,index heads,and spindles for CNC machines and machining centers.
Semiconductor Fabrication:Provide the micron-scale accuracy required for wafer transfer robot arms,photolithography machines,and precise rotary indexing.
Medical & Lab Equipment:Built into rotating parts of advanced diagnostic tools like CT scanners,MRI machines,and robotic surgery components.
Optical & Measuring Instruments:Employed in high-precision astronomical telescopes,CMM (Coordinate Measuring Machines) rotary tables,and laser measuring devices.
Simplify Integrated Installation & Layout:The integral structure with pre-drilled mounting holes enables direct bolt connection and positioning.It can be installed on pre-assembled spindles equipped with gears and reducers without disassembling existing parts,which greatly optimizes the assembly process of laser equipment,shortens production cycles and reduces subsequent maintenance difficulties and costs for manufacturers.
Bear Diversified Combined Loads:A single RU crossed roller bearing replaces multiple traditional bearing assemblies.It stably bears the radial force,axial force and overturning moment generated by the laser head and workpiece turntable during operation.The reasonable force distribution avoids local stress concentration and structural deformation,and enhances the overall structural stability of the rotary mechanism.
Guarantee Ultra-high Processing Precision:Preload design and ultra-low rotational runout effectively restrain micro-vibration and jitter during high-speed rotation and swing.It maintains excellent repeated positioning accuracy,which prevents dimensional deviation,burrs and welding defects of workpieces.Stable rotational torque also optimizes the surface finish of processed parts to meet high-standard production requirements.
Adapt to Compact Equipment Design:The ultra-thin and lightweight profile fits the compact structural space of multi-axis laser equipments.It reduces the overall weight and motion inertia of rotating components,improves the dynamic response speed of the laser head and turntable,and makes the equipment operate more flexibly during complex 3D processing.
Resist Harsh Working Conditions:Optional U/UU rubber sealing structure effectively isolates metal dust,welding fumes and high-temperature splashes.Matched with special high-temperature resistant lubricants,the bearings can operate stably for a long time in harsh processing environments,effectively preventing component wear and failure caused by environmental pollution.
Extend Service Life & Improve Productivity:Excellent fatigue resistance and impact resistance adapt to 24-hour continuous cyclic operation of laser production lines.It reduces the frequency of bearing replacement and unexpected equipment shutdown,ensures the continuous progress of processing tasks,and greatly improves the overall production efficiency of workshops.
Newbeetrans is a professional manufacturer specializing in RU crossed roller bearings.We deliver customized bearing solutions tailored for 3D laser cutting & welding equipments and various high-precision rotary machinery.
Laser Equipment Customization:We develop high-rigidity,high-temperature resistant RU bearings with enhanced dust and splash-proof sealing and dedicated long-life lubricants.Full stainless steel versions are available on request,and customized samples can be delivered within 10–15 days.
Strict Precision Manufacturing:All raceways and rollers adopt super-fine grinding to meet P5,P4 and P2 precision standards.Every product undergoes full dimensional inspection to guarantee reliable quality.
Efficient Global Delivery:Standard RU bearings are in stock for quick shipment,and we provide complete multi-channel global logistics services 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