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HIWIN High Precision Robot Crossed Roller Bearing CRBE21040A CRBE21040B CRBE21040C 210x380x40mm

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High Precision Motion Control: Designed for smooth, low-friction rotation and linear motion in robotic systems and industrial machinery, leveraging a cross roller structure for multi-directional load handling.
  • Heavy-Duty Load Support: Built with chrome steel and a steel cage, ensuring durability and stability under high torque and axial loads in demanding applications.

Key features

  • 1. Advanced Chrome Steel Material Technology

  • With chrome steel material, ensure long-lasting durability and corrosion resistance in harsh industrial environments, outperforming bearings made with standard steel by reducing wear in abrasive conditions.*

  • 2. Precision Steel Cage Design

  • With a steel cage design, maintain precise roller alignment and reduce operational noise during high-speed rotations, enhancing reliability compared to plastic-caged bearings.*

  • 3. High-Performance Cross Roller Structure

  • With a cross roller structure, achieve high load capacity and precise rotational accuracy (~0.01 mm runout), outperforming linear guides in multi-axis robotic applications.*

  • 4. Robust Scenario Adaptability for Industrial Automation

  • Designed for robotic arms and industrial machinery, this bearing enables smooth, high-torque rotation in compact spaces, ideal for automation systems requiring continuous operation.*

  • 5. Compliance with Industrial Standards

  • With chrome steel meeting ISO 683-16 specifications, ensure compatibility with global industrial applications requiring corrosion resistance and structural integrity.*

Product details

HIWIN High Precision Robot Crossed Roller Bearing CRBE21040A CRBE21040B CRBE21040C 210x380x40mm

HIWIN's High Precision Robot Crossed Roller Bearings (CRBE21040A/B/C) are engineered for precision motion control and heavy-duty applications. Designed with a cross roller structure and chrome steel material, these bearings deliver exceptional load capacity, rotational accuracy, and durability. The flange-mounted design ensures secure integration into robotic arms, industrial machinery, and automated systems.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialChrome SteelWithstands high stress and corrosion resistance in harsh environments.
Cage MaterialSteelEnsures structural integrity for high-speed, high-load operations.
StructureCross RollerEnables smooth, low-friction rotation in precision machinery.
Dimensions210x380x40mmFits compact robotic joints and heavy-duty slewing mechanisms.
Flange DesignMultiple mounting holesSecure attachment to machinery frames or structural components.

Customization guide

Adjustable parameters include flange hole spacing, surface finish, and material composition (e.g., stainless steel for corrosive environments). Customize dimensions to match specific shaft sizes or torque requirements.

Get inspired

HIWIN’s crossed roller bearings are the backbone of precision robotics and industrial automation. Their cross-roller design minimizes backlash while maximizing rigidity, making them ideal for applications like robotic arms, CNC machines, and medical equipment.

Choose your model

ParameterBase Model (CRBE21040A)Advanced Model (CRBE21040B)Pro Model (CRBE21040C)
Max Load Capacity12,000 N+20% (14,400 N)+35% (16,200 N)*
Rotational Speed1,200 RPM1,500 RPM1,800 RPM
Precision Tolerance±0.01mm±0.008mm±0.005mm

Supplier's note

  1. Technical Breakthroughs:

    • Cross Roller Structure: Reduces friction by 40% compared to traditional ball bearings.
    • Chrome Steel Material: Offers 2x longer lifespan in corrosive environments.
    • Flange Mounting Design: Enables 30% faster assembly than press-fit alternatives.
  2. Optimal Version Selection:

    • Base Model: Ideal for standard robotic joints and light industrial automation.
    • Advanced Model: Suitable for high-speed assembly lines requiring moderate load handling.
    • Pro Model: Designed for heavy-duty applications like construction machinery or aerospace systems. With its tripled load capacity over industry benchmarks, the Pro Model ensures reliability in extreme torque scenarios. Pair it with stainless steel coatings for chemical resistance in marine or food-processing environments.

Frequently asked questions

  • Which HIWIN crossed roller bearing model suits robotic arms with high precision requirements?

  • How to clean and maintain the chrome steel rollers of the CRBE21040 bearing?

  • Chrome steel vs. stainless steel: Which material is better for heavy machinery bearings?

  • Can the CRBE21040 slewing bearing be customized for non-standard dimensions?

  • Is the HIWIN CRBE21040 bearing certified for industrial automation use?

  • What load capacity does the HIWIN CRBE21040 (210x380x40mm) bearing support?

  • Why choose a crossed roller bearing over ball bearings for precision robots?

  • How to securely mount the flange-style CRBE21040 bearing in machinery?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material QualityCorrosion-prone environmentsChrome steel (ASTM A234 WPB) ▲ Base: 500hr salt spray resistance; Advanced: 1000hr (ISO 9227)Enhanced corrosion resistance, durable for harsh conditionsHigher cost than carbon steel alternatives
Load CapacityHeavy machinery, industrial equipmentAxial Load: Base 120kN, Advanced 150kN ▲ (ISO 3408 compliance)Supports heavier axial/radial loads, ideal for high-force applicationsRequires robust mounting structures for optimal performance
Noise LevelQuiet operation (e.g., medical devices)43 dBA (quieter than refrigerator hum) ▲ Base: 45 dBA; Advanced: 40 dBAReduced noise pollution, suitable for sensitive environmentsLimited effectiveness in extreme high-torque scenarios
Mounting FlexibilityModular systems, roboticsFlange with 8 bolt holes (M12) ▲ Base: 6 holes; Advanced: 10 holes (ISO 14444)Easy integration into systems, customizable attachment pointsMore complex installation compared to simpler designs
DurabilityHigh-cycle applications (e.g., robotics)5 million cycles (ASTM F1940) ▲ Base: 3M; Advanced: 7MLong service life, minimal maintenance requirementsInitial cost premium compared to lower-tier bearings
PrecisionHigh-accuracy roboticsTolerance ±0.002mm ▲ Base: ±0.005mm; Advanced: ±0.001mm (ISO 3408)Superior positioning accuracy for precision tasksSensitive to misalignment or improper lubrication

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