Large Slewing Bearings

1.Product Introduction: The same as "Large-diameter Slewing Bearings". With an outer ring diameter of ≥2000mm, it is suitable for heavy-duty equipment, capable of bearing high-strength loads, impact-resistant and with a long service life.
2.Structure Type: It has a thick-wall forged annular shape. The inner and outer rings are made of 42CrMo steel, with built-in double-row or triple-row rollers, heavy-duty seals, and the mounting holes are suitable for large bolts.
3.Size Range: Outer ring diameter: 2000 - 6000mm, inner ring diameter: 1850 - 5800mm, height: 80 - 200mm.
4.Material: Inner ring / outer ring: 50Mn, 42CrMo; rolling elements: GCr15 bearing steel, GCr15SiMn (optional for impact resistance); seals: nitrile rubber, fluororubber (optional for oil and high temperature resistance).
5.Application Fields: Large port cranes, mining machinery, wind power main units, heavy-duty crawler cranes.
6.Key Inspection Items: Flaw detection of forgings, anti-overturning moment, impurity-proof performance of seals.

Product Description

Large Slewing Bearings (Up to φ5000mm) for Heavy-Duty Industrial Applications

Engineered for Extreme Loads, High Temperatures & Rapid Delivery

When your projects demand reliability under punishing conditions, large Slewing Bearings from LUOYANG INNO BEARING CO., LTD deliver unmatched performance. With over 30 years of expertise, we design and manufacture bearings up to 5,000mm in diameter, combining forged alloy steel, precision engineering, and industry-specific adaptations. Whether you need standard bearings for port cranes or custom solutions for mining equipment, we reduce lead times to 70% of industry averages while ensuring 99.9% defect-free quality.

Why Choose Our Large Slewing Bearings?

  • Built to Withstand the Toughest Environments: Inner/outer rings forged from 42CrMo or 50Mn steel, hardened to HRC 55-60 for wear resistance.
  • Customization Without Compromise: We specialize in integrated gear teeth, corrosion-resistant coatings, and IoT-ready designs.
  • Rapid Production & Global Delivery: φ3000mm custom bearings delivered in 15-20 days, with 48-hour dispatch for 1,000+ standard bearings.

Technical Specifications

Parameter Specification
Outer Diameter 2000mm - 6000mm (expandable)
Static Load Capacity Up to 45,000 kN
Dynamic Load Up to 18,000 kN
Precision ISO 9001 P6/P5 (≤15μm radial runout)

Industry-Proven Performance

Metallurgy & Steel Plants
Our large slewing bearings handle 500℃ furnace rotations with zero thermal warping, backed by induction-hardened rollers.

Port Machinery & Offshore Cranes
Salt-spray tested for 1,000+ hours, these bearings prevent corrosion while supporting 50-ton loads.

Mining & Heavy Construction
Reinforced structures absorb shock loads up to 3,000 kNm, while triple-lip seals block abrasive dust in excavators.

Quality & Support

Every slewing bearing undergoes material spectral analysis, CMM coordinate inspection, and 72-hour endurance trials. We provide 3D CAD/FEM simulation support, IoT-enabled predictive maintenance, and 24/7 global installation guidance.

FAQs

Q: Can you produce bearings larger than φ5000mm?
A: Yes! We engineer non-standard large slewing bearings up to φ6000mm using modular forging techniques.

Q: What’s the lead time for a φ4000mm custom bearing?
A: Just 18-22 days – 30% faster than industry standards.

Q: Do you provide load test reports?
A: Yes. Every bearing includes a certificate with dynamic/static load data and torque values.

Contact Us

Need Large Slewing Bearings Optimized for Your Machinery?

Request a quote or download our catalog today.

📩 Contact Our Engineers Today

Online Message

Learn about our latest products and discounts through SMS or email