/ Three-row cylindrical roller slewing bearings

Heavy-duty slewing bearing

1.Product Introduction: Suitable for heavy-duty equipment (such as cranes with a capacity of over 100 tons), with extremely strong load-bearing capacity, capable of bearing axial loads ≥5000kN and anti-overturning moments ≥5000kN·m.
2.Structure Type: It has an integrally forged thick-wall annular shape (wall thickness ≥80mm). The inner and outer rings are made of 42CrMo steel, with built-in three rows of rollers, heavy-duty metal labyrinth seals, and the mounting holes are suitable for high-strength bolts above M30.
3.Size Range: Outer ring diameter: 1500 - 6000mm, inner ring diameter: 1300 - 5500mm, height: 150 - 300mm.
4.Material: Inner ring / outer ring: 50Mn, 42CrMo; rolling elements: GCr15, GCr15SiMn (optional for impact resistance); seals: nitrile rubber, fluororubber (optional for oil and high temperature resistance).
5.Application Fields: Ultra-large port cranes, heavy-duty mining machinery, offshore wind power platforms, large crawler cranes.
6.Key Inspection Items: Flaw detection of forgings (UT/MT inspection), anti-overturning moment, integrity of seals.
Product Description
Data Sheet

Engineered Heavy-Duty Slewing Bearings to Withstand the Toughest Industrial Demands

When your operations depend on heavy-duty slewing bearings that deliver unmatched strength and reliability, LUOYANG INNO BEARING CO., LTD offers solutions designed for extreme conditions. These bearings are built to handle axial loads exceeding 5000kN and anti-overturning moments over 5000kN·m, making them ideal for cranes, mining machinery, and offshore platforms. With over three decades of expertise, we combine advanced materials like 42CrMo steel and GCr15 rollers with precision engineering to ensure durability in high-temperature, heavy-load, and high-precision environments.

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Why Choose Us?

1. Unmatched Load Capacity & Structural Integrity

  • Axial Load Capacity: ≥5000kN | Anti-Overturning Moment: ≥5000kN·m

  • Robust Design: Integrally forged thick-wall rings (≥80mm wall thickness) with heavy-duty labyrinth seals.

  • Material Excellence: Inner/outer rings crafted from 50Mn or 42CrMo steel for superior wear resistance.

2. Customization Without Compromise

Need a non-standard size or specialized configuration? Our modular production system delivers bespoke products in 15–20 days – 70% faster than industry averages. Whether it’s a φ6000mm offshore wind turbine bearing or a P6-grade precision unit for port cranes, we adapt to your exact requirements.

3. Rigorous Quality Assurance

Every bearing undergoes:

  • Flaw Detection: UT/MT inspections for forgings.

  • Performance Testing: 12+ validations per batch, including fatigue and torque tests.

  • Precision Standards: Radial runout ≤0.05mm, axial clearance ≤0.1mm.

4. Rapid Delivery, Global Reach

  • Stock Availability: 1,000+ standard bearings (φ1500–φ6000mm) ready for shipment in 48 hours.
  • Global Logistics: Regional hubs in Asia, Europe, and North America ensure timely delivery.

Industries We Serve

Our heavy-duty slewing bearings power critical equipment across sectors:

  • Port Machinery: Ultra-large cranes with seamless 360° rotation.
  • Mining: Bearings resistant to cyclical impacts and abrasive environments.
  • Renewable Energy: Offshore wind platforms operating in corrosive saltwater.
  • Metallurgy: High-temperature solutions for steel converters (up to 150°C).

Technical Differentiation: Built to Last

Advanced Material Science

  • Core Components: High-purity forged steel treated with vacuum degassing and multi-stage heat treatment.

  • Sealing Solutions: Choose nitrile rubber for standard use or fluororubber for oil/high-temperature resistance.

Smart Engineering for Modern Demands

  • IoT Integration: Optional embedded sensors for real-time load and temperature monitoring.
  • Predictive Maintenance: Data-driven insights to optimize bearing lifespan.

Trusted by Heavy Industry Leaders

While client confidentiality prevents us from naming specific companies, our bearings are trusted by:

  • Top 10 Global Port Operators
  • Mining Giants in Asia-Pacific and Africa
  • Steel Manufacturers Across Europe

Compliance: Our processes align with ISO 9001, ANSI/ABMA, and DIN standards.

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FAQs

1. How do your bearings withstand 150°C temperatures in steel mills?

We use 42CrMo steel with specialized heat treatment, achieving core hardness ≥55 HRC and validated through third-party testing.

2. Can you deliver a φ3000mm custom bearing in 25 days?

Yes! Our modular production system cuts lead times by 30% without compromising quality.

3. What ensures low noise (≤60dB) in medical equipment?

Precision grinding (Ra ≤0.8μm) and P6-grade tolerances minimize vibration and sound.

4. Do you provide on-site installation support?

Absolutely. Our engineers offer global installation guidance to prevent downtime.

Contact Us

Ready to Elevate Your Equipment's Performance with Heavy-Duty Slewing Bearings?

Request a Custom Quote or Technical Consultation Within 24 Hours

📧 Email: sales@inno-bearing.com

📥 Download Full Spec Sheet | 📞 Contact Our Engineers

Optimized for durability. Built for your industry. Trusted worldwide.

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