Three-Row Cylindrical Roller Slewing Bearing

1.Product Introduction: With three rows of cylindrical rollers for bearing (two rows of radial rollers + one row of axial rollers), it has extremely strong load-bearing capacity, with a radial load ≥3000kN, suitable for super heavy-duty equipment.
2.Structure Type: It has an integrally forged annular shape. The inner and outer rings have three rows of raceways for cylindrical rollers, with steel cages, heavy-duty metal seals, and the mounting holes are suitable for super-large bolts (above M36).
3.Size Range: Outer ring diameter: 1500 - 6000mm, inner ring diameter: 1350 - 5800mm, height: 100 - 250mm.
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, mining excavators, heavy-duty crawler cranes, offshore wind power equipment.
6.Key Inspection Items: Clearance of the three rows of rollers, radial load-bearing capacity, flaw detection of forgings.

Product Description

High-Capacity Three-Row Cylindrical Roller Slewing Bearings for Extreme Heavy-Duty Applications

When your heavy machinery faces extreme loads and harsh environments, the Three-Row Cylindrical Roller Slewing Bearing stands as a robust solution. Designed with three independent rows of cylindrical rollers (two radial, one axial), this bearing delivers unmatched radial load capacity exceeding 3000 kN. Ideal for port cranes, mining excavators, and offshore wind turbines, it combines precision engineering with materials like 42CrMo forged steel to thrive under relentless stress.

Key Advantages

  • Extreme Load Capacity: Handle axial, radial, and moment loads simultaneously, perfect for equipment lifting 10,000+ tons.
  • Tailored Durability: Optimized heat treatment (HRC 58-62 hardness) extends bearing service life by 2-3x in abrasive or high-temperature settings.
  • Rapid Customization: Modular production cuts lead times to 20-25 days for diameters up to 5000mm.
  • Global Compliance: Pre-certified for ISO 9001, CE, and OSHA standards to accelerate project approvals.

Technical Specifications

Parameter Details
Size Range φ1500–6000mm (Up to φ8000mm)
Radial Load ≥3000 kN (Up to 15,000+ kN)
Materials 50Mn/42CrMo forged steel, GCr15 rollers
Precision ISO P5/P6, ≤0.02mm radial runout
Temp Resistance -50°C to 150°C

Industry Applications

  • Port Machinery: Saltwater-corrosion-resistant bearings with fluororubber seals for container cranes.
  • Metallurgy & Mining: Custom heat-resistant designs withstand 500°C+ heat in ladle turrets.
  • Renewable Energy: Precision-ground rollers reduce noise (<65 dB) for offshore wind turbine yaw systems.

Why Partner With LUOYANG INNO?

  • 30+ Years of Heavy-Duty Expertise: Proprietary designs optimized via FEM simulation.
  • Quality Assurance: Triple inspections (CMM dimensional checks, 150% overload tests, mill certificates).
  • Supply Chain Agility: 1,000+ stocked SKUs for 48-hour delivery and regional warehouse support.

FAQs

Q: Can these bearings handle combined axial/radial loads in port cranes?
A: Absolutely. We redesign raceway angles and roller diameters to balance forces efficiently based on your load profiles.

Q: How do you achieve faster lead times for non-standard bearing sizes?
A: Our modular tooling system adapts existing dies for φ3000–5000mm units, slashing production time by 30%.

Q: Do you support bearing installation and maintenance?
A: Yes. We provide on-site alignment checks, IoT-based wear monitoring, and emergency parts within 72 hours.

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