Slew Bearing Crane

1.Product Introduction: The same as "Crane Slewing Bearings". It is suitable for various cranes, with internal or external gears, capable of bearing overturning moments and radial loads, and has strong adaptability to outdoor environments.
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, with metal seals, and the mounting holes match the crane structure.
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 cranes.
6.Key Inspection Items: Gear pitch error, anti-overturning moment, dust-proof performance of seals.

Product Description

High-Performance Slew Bearing Crane Solutions – Customized & Rapid Global Delivery

30+ Years of Crane-Centric Expertise | 30 Days Lead Time for φ3000mm Non-Standard Bearings

When your crane operations demand reliability under extreme loads, heat, or harsh environments, our slew bearing crane components deliver unmatched performance. Engineered for tower cranes, port machinery, and metallurgical applications, these bearings combine 42CrMo/50Mn steel durability with precision P6-grade manufacturing.

Why Our Slew Bearings Excel in Crane Applications

  • Built for Heavy Loads & Harsh Conditions: 10,000 kN static load capacity and 150°C heat resistance, featuring IP65 sealed protection.
  • Rapid Customization: Produce non-standard slew bearing crane units (up to φ5000mm) in 15-20 days – 30% faster than industry averages.
  • Precision Engineering: P4-grade accuracy (±0.01mm runout) ensures seamless slewing motion, with <35dB noise output.

Technical Specifications for Crane Integration

Parameter Specification
Sizes Standard: φ500–3000mm | Custom: Up to φ5000mm
Load Types Axial, radial, moment (simultaneous)
Materials 50Mn/42CrMo forged steel, HRC 58-62 hardness
Sealing Triple-lip nitrile rubber + fluoropolymer
Certifications CE, AWS D1.1, ISO 9001, ABS (on request)

Optimized for Your Crane Type

  • Port Cranes: Multi-row roller configurations distribute container-handling impacts with AWS D1.1-certified welded designs.
  • Metallurgical Cranes: Integrated cooling channels and FEM 9.811-validated fatigue life (200,000 cycles) for ladle cranes.
  • Tower Cranes: Compact single-row ball bearings with 3x lifespan and IoT-ready sensors for real-time load distribution.

Quality Assurance & Support

Every slew bearing crane unit undergoes material spectrometer checks, precision 3D gear pitch scanning, and 10,000-hour accelerated durability testing.

FAQs

Q: Can you customize bearings for 150°C metallurgical cranes?
A: Yes! We use 42CrMo4 steel with induction-hardened raceways (HRC 60) and graphite-coated seals.

Q: How do you achieve 15-20 day lead times for custom slew bearing crane sizes?
A: Our modular production system prefabricates common subcomponents, cutting assembly time by 40%.

Q: Do you support legacy crane retrofits?
A: We provide on-site measurement services and CAD redesigns for obsolete slew bearing crane systems.

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