Cross Roller Bearing

Home>>Products>>Cross Roller Bearings

High-Precision Cross Roller Bearings--CAGRI Bearings

Product Overview

Cagri Bearings- Professional Supplier of Cross Roller Bearings. Cross Roller Bearing is a compact high-precision bearing featuring rollers arranged orthogonally at 90° between inner and outer rings, achieving multi-directional load bearing through line contact . Its core classifications include nine major series: XRA/XRA-C Series cross roller bearing, XRB/XRBC/XRBH Series cross roller bearing, XRC series cross roller bearing, XRE Series cross roller bearing, XRT series cross tapered roller bearings, XRU/XRUS series cross roller bearing, RB series robot bearing, RU series robot bearing, covering full-scenario needs such as high rigidity, standard, super slim, slim, with mounting holes and robot-specific adaptation .

What is EMQ bearings?

Cross Roller Bearing is a precision transmission component capable of withstanding radial, axial loads and overturning moments simultaneously. Its line-contact design between rollers and raceways minimizes elastic deformation caused by loads, serving as the “industrial heart” of high-end equipment . This type of bearing is widely compatible with equipment requiring high rigidity and precision, with core application scenarios including industrial robot joint rotation parts, CNC machine tool turntables, semiconductor wafer processing equipment, and medical imaging instruments . In specific product adaptation, XRE Series cross roller bearing matches UAV gimbals and small testing instruments, XRBH Series cross roller bearing fits 5-axis machining center spindles, XRA Series cross roller bearing simplifies the assembly of precision rotary tables due to its built-in mounting hole design. Meanwhile, RB series robot bearing is specially designed for collaborative robot shoulder joints, and RU series robot bearing is adapted for industrial robot wrist and elbow joints. Both optimize low-speed stability and impact load resistance, suitable for robot high-frequency start-stop and complex attitude adjustment scenarios . With digital twin technology, some high-end models (e.g., XRT series cross tapered roller bearings, high-end RU models) can also integrate condition monitoring functions to real-time feedback operating parameters such as temperature and vibration .

CAGRI EMQ Ball Bearing Advantages

CAGRI Cross Roller Bearing forms five core competitive advantages relying on advanced manufacturing technology, and all series (XRA/XRA-C, XRB/XRBC/XRBH, RB/RU, etc.) have the following advantages:

Ultimate Rigidity and Load Capacity: The cross-arranged roller design increases rigidity by over 50% compared to ordinary bearings, enabling simultaneous bearing of multi-directional composite loads. Among them, XRBH Series performs particularly well in heavy-load scenarios such as wind turbine main shafts. The RB/RU series robot bearings optimize the roller contact angle for joint load characteristics, increasing impact load resistance by 40% ;
Ultra-Precision Rotation Performance: The entire series adopts precision grinding process and integrated ring design, with precision reaching P2 grade. XRC series cross roller bearing can better meet the submicron positioning requirements of semiconductor lithography machines. The RB/RU series robot bearings achieve repeat positioning accuracy within 0.002mm through ultra-precision processing, adapting to high-precision robot operations ;
Compact and Lightweight Structure: As a representative of super slim models, XRE Series cross roller bearing has a section height of only 5.5mm, 38% lighter than traditional models. The RB/RU series robot bearings adopt integrated stamping cages, 25% lighter than similar products, helping to improve robot load capacity and reduce energy consumption ;
Long-Term Durability: The entire series uses high-quality GCR15SiMn steel with special heat treatment, combined with liquid crystal lubrication technology, and the service life is 2-3 times that of ordinary bearings. XRU/XRUS series has no lubricant volatilization loss even at 100℃. The RB/RU series robot bearings use long-acting grease, extending the maintenance-free period to 8000 hours ;
Easy Installation and Adaptability: XRA-C Series and XRBC Series have built-in mounting holes and anti-separation structures, which can be directly fixed with bolts without complex bearing housings ; The RB/RU series robot bearings are equipped with special mounting bushings and positioning pins, adapting to modular assembly of robot joints and can be quickly integrated into different brands of robot bodies. The entire series is suitable for various scenarios from industrial robots to medical equipment .

Application

Industrial Robotics
Robot Joints	6 -axis collaborative robot shoulder joints (RB series), industrial robot elbow/wrist joints (RU series), humanoid robot waist rotation units, palletizing robot arm connecting shafts
End Effectors	Precision gripping manipulator rotating bases, welding robot wrist drive units

Machine Tools
CNC Turntables	5-axis machining center rotary tables, vertical lathe precision indexing plates
Spindle Supports	High-speed grinder spindle bearing sets, boring machine rotating shaft support units

Semiconductor & Electronics
Wafer Processing	Lithography machine wafer transfer robot joints, wafer inspection equipment rotary platforms
Precision Instruments	IC packaging equipment rotating stations, electron microscope sample stages

Medical Equipment
Imaging Devices	CT machine rotating scanning frame, MRI patient bed drive shaft
Surgical Tools	Laparoscopic surgical robot joints, ophthalmic precision operating table rotation units