Crane Slewing Bearing

1.Product Introduction: Suitable for various cranes (portal cranes, tower cranes, crawler cranes), with internal or external gears, capable of withstanding overturning moments and radial loads during crane operations, stable and reliable.
2.Structure Type: It has an annular shape. The inner and outer rings are made of 50Mn/42CrMo steel, with built-in double-row steel balls or rollers. The gear ring is carburized and quenched, and metal seals are used to prevent dust, and the mounting holes match the crane tower or boom.
3.Size Range: Outer ring diameter: 800 - 3500mm, inner ring diameter: 700 - 3350mm, height: 40 - 120mm.
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: Tower cranes, portal cranes, crawler cranes, port portal cranes.
6.Key Inspection Items: Gear pitch error, anti-overturning moment, dust-proof performance of seals.

Product Description

Durable Crane Slewing Bearings for Heavy-Duty Performance – Custom-Built & Rapid Delivery

30+ Years of Precision Manufacturing | 25 Days Lead Time for Non-Standard Orders | P5-Grade Reliability

When your crane operations demand unwavering reliability, Crane Slewing Bearings from LUOYANG INNO BEARING CO., LTD are engineered to deliver. Designed for port machinery, tower cranes, and heavy industrial applications, our slewing rings combine robust load-bearing capacity with precision rotation, ensuring smooth operation under extreme conditions.

Why Our Crane Slewing Bearings Outperform?

  • Fast-Track Production: Get standard bearings (OD <φ5000mm) shipped in 48 hours.
  • Heavy-Duty Engineering: Built to handle axial loads up to 3000 kN, radial loads of 1500 kN, and moments exceeding 5000 kN·m.
  • Precision Customization: Tailored dimensions, gear teeth profiles (DIN 5级), and sealing solutions (IP66/IP69K).
  • Quality Guaranteed: 100% tested with 12+ performance validations, including vibration analysis and lifespan simulations.

Key Specifications & Applications

Parameter Specification
Outer Diameter φ800mm – φ3500mm (expandable to φ5000mm)
Load Capacity Axial: 200-3000 kN, Radial: 100-1500 kN
Gear Precision DIN 5级 (≤0.1mm pitch error)
Materials 50Mn/42CrMo steel, HRC 55-60 hardness
Sealing Nitrile/FKM rubber, metal shields optional

Why Partner with Us?

  • Expertise: 30+ years specializing in slewing rings for metallurgical cranes, port machinery, and heavy lifting equipment.
  • Supply Chain: 1,000+ standard bearings in stock for expedited global shipping.
  • Lifecycle Support: Installation guidance, IoT-enabled wear monitoring, and professional retrofit services.

Trusted by Global Crane Manufacturers

Our Crane slewing bearings are proven in port container handlers (withstanding saltwater corrosion) and metallurgical cranes (operating in 150°C environments).

FAQs

Q: Can you replace legacy bearings in older cranes?
A: Yes – share your existing bearing specs or let our engineers conduct on-site measurements.

Q: How do you ensure precision in large-diameter slewing rings?
A: We use CNC gear grinding and 100% post-production runout testing (≤0.05mm tolerance).

Q: Do you support IoT integration for predictive maintenance?
A: Yes – we embed sensors to monitor wear, temperature, and lubrication levels in real time for your crane.

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