Excavator Slewing Bearing

1.Product Introduction: Slewing bearings suitable for 6 - 50 tons of excavators, with internal or external gear drives, capable of withstanding impact loads and alternating moments during excavation operations, and having high durability.
2.Structure Type: It has a large-diameter annular thick-wall structure. The inner and outer rings are made of 42CrMo steel, with built-in double-row rollers. The gear ring is carburized and quenched, and metal skeleton seals are used to prevent sediment, and the mounting holes have anti-loosening designs.
3.Size Range: Outer ring diameter: 800 - 4000mm, inner ring diameter: 700 - 3800mm, height: 30 - 150mm.
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: 6 - 50 tons of medium and large excavators, mining excavators, heavy-duty backhoe loaders.
6.Key Inspection Items: Tooth surface hardness (HRC58 - 62), anti-impact load performance, sediment-proof performance of seals.

Product Description

High-Performance Excavator Slewing Bearings Built for Extreme Duty Cycles

Engineered to withstand 500+ ton loads, 150℃ temperatures, and 30+ years of operation.

When your excavator's slewing bearing fails, downtime costs soar. That's why leading OEMs trust LUOYANG INNO BEARING's excavator Slewing Bearings—precision-engineered to endure harsh mining, construction, and demolition environments. Our bearings combine military-grade materials with modular designs, ensuring seamless rotation under extreme axial/radial forces.

Why Our Slewing Bearings Outperform Competitors?

  • Heavy-Duty Expertise: We specialize in slewing bearings for excavators (6-50 tons), leveraging three decades of R&D.
  • Rapid Customization: Produce non-standard slewing rings (up to φ5000mm) with internal/external gear drives in 25 days.
  • Extreme Resilience: Material (42CrMo/50Mn steel) with 58-62 HRC hardness and triple-lip nitrile rubber seals blocks abrasive dust and moisture.

Technical Specifications

Parameter Specification
Outer Diameter 800mm - 4000mm (Custom up to 5000mm)
Load Capacity 50kN·m - 50,000kN·m
Gear Hardness HRC 58-62 (carburized & quenched)
Certifications ISO 9001, CE, API 6A, GB/T 307.1

Quality Assurance Protocol

Every excavator slewing bearing undergoes ultrasonic flaw detection, torque tolerance testing (±5%), 72-hour salt spray corrosion resistance checks, and dimensional accuracy verification (ISO 492 Class 5+).

Why 100+ Excavator OEMs Choose Us?

  • 30% longer lifespan than ISO 7753-1 standards.
  • 18% lower total cost of ownership via reduced maintenance.
  • IoT-ready: Optional sensors predict failures by tracking vibration and temperature trends.
  • Global Logistics: 1,000+ bearings in stock for 48-hour dispatch.

FAQs

Q: How do your bearings handle compact excavator designs?
A: We use 3D scanning to retrofit older models, optimizing gear meshing and load paths.

Q: What materials resist abrasive mining debris?
A: 42CrMo steel with induction-hardened raceways (60 HRC) + fluorocarbon seals.

Q: Can φ5000mm slewing rings handle 50,000 N·m loads?
A: Yes—double-row roller designs distribute stress evenly, validated via ANSYS simulations.

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