/ Three-row cylindrical roller slewing bearings

Three Row Roller Slewing Bearings

1.Product Introduction: With a triple-row roller bearing structure (two rows of radial rollers + one row of axial rollers), it has extremely strong load-bearing capacity, is suitable for heavy-duty equipment, and has excellent anti-overturning moment performance.
2.Structure Type: It is integrally forged with a thick-wall annular shape. The inner and outer rings have three rows of raceways corresponding to radial and axial rollers respectively, with steel cages, heavy-duty metal seals, and the mounting holes are suitable for super-large bolts.
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: Large port cranes, mining excavators, heavy-duty crawler cranes, offshore wind power equipment.
6.Key Inspection Items: Consistency of the clearance among the three rows of rollers, anti-overturning moment (≥1000kN·m), flaw detection of forgings.
Product Description
Data Sheet

Three Row Roller Slewing Bearings for Heavy-Duty Industrial Applications

High Load Capacity (5000kN+), Custom Sizes up to φ5000mm, 15-20-Day Delivery

Engineered to withstand extreme loads, harsh environments, and relentless operational demands, Three Row Roller Slewing Bearings are the backbone of heavy machinery in mining, construction, and energy sectors. With a unique triple-row roller design—two radial rows for vertical forces and one axial row for horizontal stability—these bearings deliver unmatched anti-overturning performance. At LUOYANG INNO BEARING, we combine 30+ years of manufacturing expertise with advanced material science to provide solutions that endure temperatures up to 150°C, sudden impacts, and dynamic loads exceeding 5,000 kN.

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Product Highlights

  • Extreme Load Capacity: Supports axial loads up to 5,000 kN, radial loads to 3,200 kN, and overturning moments beyond 25,000 kN·m.
  • Custom Sizes: Available in diameters from 1,500mm to 6,000mm, with non-standard designs (±0.05mm precision) delivered in 15–20 days.
  • High-Temperature Resilience: Optional ceramic-coated rollers and graphite lubrication for metallurgical kilns (up to 150°C).
  • Global Compliance: ISO 9001, CE, API 8C, and region-specific certifications (AS/NZS, GOST R).

Technical Specifications

Parameter Specification
Load Capacity (Axial) 1,500–5,000 kN
Load Capacity (Radial) 1,000–3,200 kN
Material 42CrMo/50Mn steel, HRC 58-62 hardness
Accuracy Grade P4 (ISO 492)
Operating Temperature -30°C to +150°C
Sealing Nitrile rubber or fluororubber options

Why Our Design Outperforms?

1. Optimized Load Distribution

The triple-row configuration separates axial, radial, and moment loads into dedicated roller paths, reducing stress concentration by 40% compared to single-row designs.

2. Precision Manufacturing

Forged from high-purity 50Mn steel and hardened through carburizing, our bearings achieve a 10x improvement in wear resistance. Components are machined to 0.01mm tolerances using CNC grinders.

3. Modular Flexibility

Three Row Roller Slewing Bearings with split-design options simplify retrofitting into legacy mining excavators or port cranes, cutting installation time by 50%.

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Trusted Across Industries

  • Mining: Excavator slewing rings handling 80-ton payloads under dust and shock loads.
  • Metallurgy: Kiln support bearings with graphite-lubricated rollers for 500°C environments.
  • Wind Energy: Corrosion-resistant variants for offshore turbine pitch control.
  • Construction: IP67-sealed bearings for tower cranes exposed to moisture and debris.

Quality Built to Last

Our 3-stage quality control ensures reliability:

1. Material Testing: Spectral analysis and ultrasonic checks for impurities.

2. In-Process Checks: 100% dimensional verification via CMM machines.

3. Final Validation: Load testing at 200% rated capacity and vibration analysis.

Global Supply Chain Advantage

  • 48-Hour Shipping: 1,000+ standard types ready from regional warehouses.
  • Oversized Logistics: Custom handling for bearings up to φ6,000mm/15 tons.
  • Certified Packaging: Anti-rust treatments and reinforced crates for long-haul safety.

Your Success, Our Support

  • Free CAD Models: Download 3D drawings for seamless integration.
  • 24/7 Technical Aid: On-call engineers for alignment or vibration issues.
  • IoT Monitoring: Optional embedded sensors for real-time load/temperature tracking.

Why Choose LUOYANG INNO BEARING?

Feature Us vs. Competitors
Lead Time (Custom) 15–20 days vs. 30–45 days
Defect-Free Rate 99.9% vs. 95% industry average
Lifespan 20,000+ hours MTBF with IoT monitoring

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FAQs

1. How do your bearings handle 500°C environments?

We use ceramic-coated rollers and high-temperature graphite lubrication, tested in metallurgical kilns.

2. Can you make non-standard sizes like φ5,000mm?

Yes—custom diameters up to 6,000mm are achievable with ±0.05mm precision.

3. What's the fastest delivery time for urgent orders?

Standard bearings ship in 48 hours; custom large units (e.g., φ3,000mm) take 15–20 days.

4. Which materials suit heavy shock loads?

GCr15SiMn rollers with induction hardening endure cyclical impacts in port cranes.

5. Do you assist with legacy equipment retrofits?

Yes—we provide laser alignment and CAD-based remanufacturing services.

Contact Us

eady to Elevate Your Equipment's Performance with Three Row Roller Slewing Bearings?

Contact our engineers today: sales@inno-bearing.com

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