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.
RA Crossed Roller Bearings are ultra-thin,high-precision bearings specifically designed for compact and lightweight applications.They contain cylindrical rollers arranged at right angles to each other in a 90° V-groove,separated by spacer retainers.Precision grades reach P4/P2,with inner diameters from 50mm to 200mm and section heights of 8mm-13mm.Made of GCr15 high-carbon chromium steel or SUS440C stainless steel,they provide double-seal (UU/U) or open structures.With a runout tolerance ≤0.002mm and surface hardness HRC 60-62,they deliver high rigidity,low friction,and long service life for precision equipment.
3D 5-axis laser cutting equipments are high-end intelligent machining systems used to cut complex 3D structural parts with high precision.Through five-axis linkage motion,they can realize all-round and free-angle cutting of spatial curved surfaces,inclined surfaces and special-shaped workpieces.They are widely used in automotive manufacturing,aerospace,sheet metal processing,machinery manufacturing and other fields.Such equipment requires ultra-high motion precision,strong rigidity,stable rotation and zero backlash during high-speed cutting.Any slight deflection,vibration or positioning error will directly lead to unqualified cutting accuracy,poor section quality and part scrap.The rotary axes and motion units rely heavily on high-performance bearing support.
Multi-Directional Load Capacity:Because the rollers are crossed at 90-degree angles,a single bearing can simultaneously support radial,axial,and moment loads from all directions.
Ultra-Thin & Lightweight Design:RA models are the thinnest versions in the crossed-roller lineup,with the thickness of both inner and outer rings reduced to an absolute minimum.This keeps related mechanical structures compact and lightweight.
High Rigidity & Accuracy:Despite the slim profile,the arrangement of the rollers prevents deformation under complex loads,making it possible to achieve stable,micron-level rotational accuracy.
Separable Outer Ring:The outer ring is a single-split type,while the inner ring is an integral piece (though split inner ring variants exist).This separable structure simplifies installation and allows for precise preloading.
Smooth Rotational Torque:Equipped with spacer retainers between the cylindrical rollers,these bearings exhibit a low friction coefficient,resulting in smooth and highly stable rotational torque,even at low speeds.
Key Industry Applications
Industrial Robotics:Extensively used in robot joints,wrists,and waists.Their high rigidity and ability to withstand complex twisting loads make them essential for precise,energy-efficient robotic movements.
Machine Tools:Utilized in CNC indexing heads,rotary tables,and machine tool spindles.They ensure high running accuracy and stability even when machining forces are applied.
Medical & Diagnostic Equipment:Deployed in CT scanners,MRI machines,surgical robots,and endoscopic equipment.Their compact profile allows them to fit within complex articulating arms and deliver quiet,exact motion control.
Semiconductor Manufacturing:Employed in wafer handling robots,photolithography machines,and precision rotary stages where contamination-free and cleanroom-compatible operation is mandatory.
Optical & Measuring Instruments:Used in astronomical telescopes,Coordinate Measuring Machines (CMM),and radar antennas to guarantee steady,exact tracking and measurement over long periods.
RA crossed roller bearings are the core rotary support components of 3D 5-axis laser cutting equipments,which directly determine the cutting accuracy,motion stability and equipment reliability.
Ensure High Cutting Precision:The high precision and low run-out provide stable and accurate rotary positioning for the 5-axis linkage,ensuring that the laser head moves along the preset path without deviation,so as to obtain high-quality cutting surfaces and high dimensional accuracy.
Provide Strong Anti-deformation Rigidity:High rigidity effectively resists deformation caused by cutting force,inertia force and workpiece weight during high-speed motion,avoiding vibration and deflection that affect cutting effect.
Adapt to Complex Multi-directional Loads:It can simultaneously bear the radial,axial and moment loads generated during five-axis linkage movement,maintaining stable performance under complex working conditions without additional bearing combinations.
Compact Structure for Equipment Integration:The thin-section and lightweight design perfectly matches the limited space of the 5-axis cutting head and rotary unit,helping to optimize the overall structure and improve motion agility.
Low Vibration & Smooth Motion:Low friction characteristics reduce vibration and noise,ensuring stable laser output and smooth cutting process,avoiding rough cutting edges and positional errors.
Stable Performance for Long-term Production:Long service life and good reliability reduce downtime and maintenance frequency,supporting 24/7 continuous processing in automated production lines.
Newbeetrans is a professional manufacturer of RA crossed roller bearings,providing customized bearing solutions for 3D 5-axis laser cutting equipments and other precision machinery.
Customization for Laser Equipment:We provide targeted designs with high rigidity,zero backlash,low vibration and strong environmental adaptability.Support special lubrication,non-standard sizes and stainless steel materials; samples can be delivered in 10-15 days.
Precision Manufacturing:Adopt super-fine grinding process to achieve P4/P2 high precision,with strict quality control on key dimensions.
Fast & Reliable Delivery Standard:RA series can be shipped within 72 hours,with global logistics support.
Quality Certification:Certified by ISO 9001 and GB/T 307.1,SGS inspection reports are available.
For technical specifications,pricing,or custom bearing solutions:
Email:paul@newbeetrans.com
Website:www.newbeetrans.com
WhatsApp
sales@newbeetrans.com
+8615090185276