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Crossed Roller Bearing Ru124 G/X Crbf8022 a/Ad/at Ru148 G/X Ru178 G/X Ru228 G/X Ru297g/X Ru445 G/X Robot Joints Machine Tools Spindles Semiconductor1
Cylindrical Roller Bearing, Roller Bearing, Cross Roller Bearing
Luoyang Auto Bearing Co., Ltd.
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Product Description RU Series Crossed Roller Bearings: Precision Engineered for Demanding Industrial ApplicationsAs a leading manufacturer of high-performance bearings in China, we present the RU Series Crossed Roller Bearings-a breakthrough solution designed to deliver exceptional rigidity, rotational accuracy, and space efficiency for critical machinery. Engineered with a unique crossed roller structure, this series excels in applications where simultaneous radial, axial, and moment load resistance is non-negotiable, making it a top choice for global buyers in robotics, machine tools, and precision engineering.1. Product Overview: What Makes RU Series Stand Out?The RU Series Crossed Roller Bearings feature a innovative design where cylindrical rollers are arranged perpendicularly (90°) in a precision-machined V-groove raceway (alternating between radial and axial orientations). This structure eliminates internal clearance (or allows micro-preload adjustment) and distributes loads evenly across the rollers, resulting in: No need for separate radial and thrust bearings (reducing assembly space by 30% vs. traditional bearing combinations).Ultra-low rotational friction and minimal runout, ensuring stable operation even at high speeds.Robust resistance to vibration and shock-critical for long-term reliability in harsh industrial environments. Available in a full range of sizes (from small-bore models like RU1208 to large-diameter options such as RU800200), the RU Series is fully customizable to match your specific dimensional, material, and sealing requirements.2. Core Features: Engineered for PerformanceFeatureAdvantage for Industrial UseIntegrated Ring DesignOne-piece inner/outer rings with pre-drilled mounting holes simplify installation, reduce alignment errors, and save assembly time.High Rigidity ConstructionHeat-treated bearing steel (SUJ2) and precision grinding (up to P4 class accuracy) ensure minimal deformation under heavy loads-ideal for machine tool rotary tables.Dual Load CapacitySimultaneously handles radial loads, axial loads (both directions), and moment loads (tilting moments), eliminating the need for multi-bearing setups.Flexible Sealing OptionsChoose from open (for low-contamination environments), rubber seals (RS1/RS2), or metal shields (ZZ) to prevent dust, coolant, or grease leakage.Wide Temperature RangeOperates reliably from -30°C to +120°C (-22°F to +248°F); high-temperature versions (up to +200°C) available for aerospace/automotive applications.Low MaintenancePremium lithium-based grease (standard) ensures long lubrication intervals (up to 10,000 operating hours under normal conditions).3. Technical Specifications (Standard Models)For a complete technical datasheet (including custom sizes), contact our sales team. Below are key parameters for popular RU Series models: Material: Standard: SUJ2 (JIS G4805); Optional: 440C stainless steel (for corrosion resistance), high-carbon chromium steel.Preload Class: C0 (standard), C1 (light preload), C2 (medium preload)-customizable for zero-clearance applications.Mounting: Flange-mount or shaft-mount designs available; mounting accessories (locknuts, washers) provided upon request.4. Key Applications: Where RU Series Adds ValueThe RU Series is tailored for industries that demand precision, reliability, and space efficiency. Below are its most common use cases:4.1 Robotics & AutomationRobotic Joints (6-axis robots): The RU Series' high moment load capacity and low backlash ensure smooth, accurate movement of robotic arms-critical for pick-and-place, welding, and assembly robots.AGV (Automated Guided Vehicles): Compact design and shock resistance make it ideal for AGV wheel hubs and steering mechanisms, even in high-traffic factory environments.4.2 Machine ToolsRotary Tables & Indexing Heads: Ultra-high rotational accuracy (runout ≤ 3μm) and rigidity prevent vibration during heavy cutting, improving machining precision for metalworking centers.Grinding Machines: Low friction and stable load distribution ensure consistent surface finish for precision grinding of automotive or aerospace components.4.3 Medical & Optical EquipmentCT Scanners & MRI Machines: Non-magnetic versions (using 316L stainless steel) and low-noise operation meet strict medical standards, while high accuracy ensures clear imaging.Optical Lithography Equipment: Sub-micron precision and temperature stability support the ultra-fine positioning required for semiconductor wafer manufacturing.4.4 Aerospace & DefenseSatellite Antennas: Lightweight design and resistance to extreme temperatures (-60°C to +150°C) make it suitable for space-based equipment. Vehicles: Shock and vibration resistance ensure reliable performance in rugged off-road conditions.5. Quality Assurance: Why Choose Our RU Series?We adhere to global quality standards to ensure every RU Series bearing meets or exceeds customer expectations: Certifications: ISO 9001:2015, ISO 14001, and IATF 16949 (for automotive applications).Testing Process: Every bearing undergoes 100% inspection:Dimensional accuracy (using coordinate measuring machines, CMM).Rotational torque testing (to ensure smooth operation).Load capacity verification (via hydraulic testing machines).Noise level measurement (≤ 55dB at 1000 rpm for standard models).Warranty: 12-month warranty for standard models; extended warranty available for custom solutions.6. Packaging & DeliveryPackaging:Standard: Industrial cardboard boxes with foam inserts (to prevent damage during transit).Export: Seaworthy wooden crates (IPPC-certified) for bulk orders, suitable for long-distance shipping.Lead Time:Standard models: 7-15 working days.Custom models (size/material/sealing): 30-45 working days.Shipping: By sea (FCL/LCL), air (DHL/FedEx/UPS), or railway (for Eurasian markets)-we work with trusted logistics partners to ensure on-time delivery. CompanyLuoyang Auto Bearing Co., Ltd. is located in the industrial park of Luoyang,which is one of the four great ancient capitals of China.Our company is the member of China Bearing Industry Association,cooperating with State Quality Supervision and Testing Center for bearing.Our company is a professional bearing manufacturer which integrated with research ,development and marketing services.Our major products include deep groove ball bearing, spherical roller bearing, slewing ring, crossed roller bearing and other all kinds of high precision bearings.Our products are widely applied to motor industry,mining metallurgy,wind power generation,petroleum drilling,automobile and motorcycle etc..Our company not only possesses advanced bearing manufacturing equipments and international first-class measuring instruments, but also has strong strength of manufacturing, inspecting and testing the high precision and reliability bearings.Each process is in strict accordance with the ISO9001 quality management system,which effectively guarantees the precise of products and stability of the performance. AUTO bearings are mainly exported to the United states,South Korea,Europe,etc., which have reached the high level of foreign similar products.The soul of our business culture is [Detail makes competitive, innovation makes first-class".We believe the production and management philosophy of [quality wins ,casting competitive products".The company adheres to the zero-defect quality management for meeting customer requirements.PackingA. plastic box & outer carton & palletsB. plastic bag & box & carton & palletC. tube package & middle box & carton & palletD. Depends on your needsDeliveryA. Most orders will be shipped within 3-5 days of payment being received.B. Samples will be shipped by cov2urier as FedEx,UPS,DHL,etc.Thank you very much for taking time to view our company's website. If you are interested in this product, please feel free to contact us. We are always here.
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