Slewing Bearing For Marine Crane
2. Product Structure: Our slewing bearings utilize a single-row, four-point contact ball or cross-roller structure (selectable based on requirements and operating conditions).
3. Size Range: Raceway center diameter: From approximately 500 mm to over 5,000 mm
Cross-section height: Ranges from 10 mm to 400 mm.
4. Material: Ring material: High-strength 50Mn or 42CrMo alloy steel.
Rolling elements: High-precision, high-hardness GCr15 bearing steel balls.
Seals: Seawater-, ozone-, and aging-resistant NBR or higher-performance hydrogenated nitrile rubber (HNBR).
5. Applications: Marine deck cranes, mobile harbor cranes, offshore wind turbine installation vessel cranes, floating cranes (crane vessels), ship supply cranes, and offshore engineering platform cranes.
Slewing Bearing For Marine Crane - Heavy-Duty Solutions for Maritime Operations
When your marine crane operates in challenging sea conditions, you need reliable rotation solutions that won't let you down. A Slewing Bearing For Marine Crane serves as the critical rotating connection between your crane's upper structure and base platform. This specialized bearing combines rotation, load-bearing, and transmission functions into one robust component. Designed specifically for harsh maritime environments, these bearings handle heavy loads while providing smooth 360-degree rotation for your crane operations.
Why Choose Our Marine Crane Slewing Bearings?
Built for Maritime Challenges
Marine environments demand exceptional durability. Our bearings feature advanced sealing systems using NBR or HNBR rubber materials. These seals resist seawater corrosion, ozone damage, and aging effects that typically plague marine equipment.
You'll appreciate the high-strength materials we use. Ring components utilize 50Mn or 42CrMo alloy steel for maximum structural integrity. Rolling elements feature precision-manufactured GCr15 bearing steel for consistent performance under heavy loads.
Flexible Design Options
We offer both single-row four-point contact ball and cross-roller structures. This flexibility allows you to select the optimal design for your specific operating conditions and load requirements.
Our size range accommodates various crane configurations:
- Raceway diameters: 500mm to over 5,000mm
- Cross-section heights: 10mm to 400mm
- Precision grades: P0, P6, P5, and P4 available
Superior Load Handling
Your crane faces multiple load types simultaneously. Our Slewing Bearing For Marine Crane effectively manages axial, radial, and moment loads in combination. This multi-directional load capacity ensures stable operation during lifting, lowering, and rotation movements.
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Applications Across Marine Industries
Our bearings serve diverse maritime applications:
Deck Cranes: Perfect for cargo handling operations on commercial vessels
Harbor Cranes: Reliable performance for port loading and unloading activities
Offshore Wind Installation: Specialized solutions for renewable energy projects
Floating Crane Vessels: Heavy-duty bearings for large-scale maritime construction
Supply Vessel Cranes: Compact designs for offshore platform servicing

Quality You Can Trust
Located in Luoyang, China's bearing manufacturing hub, our facility combines over 30 years of industry expertise with modern production capabilities. Our ISO9001 certification ensures consistent quality standards throughout manufacturing.
We maintain strict testing protocols using coordinate measuring machines, vibration testers, and life testing equipment. Every bearing undergoes comprehensive quality checks before shipment.

Custom Solutions Available
Standard products might not always meet your unique requirements. We provide personalized customization services based on your specific operating conditions. Our engineering team offers technical consultation, custom design, and manufacturing support.
Whether you need special dimensions, modified load ratings, or enhanced sealing systems, we can develop solutions tailored to your application.
Global Service Network
Our bearings currently serve customers across 50+ countries including the United States, Germany, United Kingdom, and Australia. This international presence demonstrates our commitment to reliable products and responsive service.
We maintain substantial inventory for quick delivery of standard products. Our technical support team provides assistance with bearing selection, installation guidance, and troubleshooting support.
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FAQ
Q: What maintenance is required for marine crane slewing bearings?
A: Regular inspection of seals, proper lubrication scheduling, and bolt torque checking are essential. We provide detailed maintenance guidelines with each bearing shipment.
Q: How do I select the right bearing size for my crane?
A: Consider your crane's load capacity, rotation speed, and mounting space. Our engineering team can help determine optimal specifications based on your requirements.
Q: What's the typical lifespan of these bearings in marine environments?
A: With proper maintenance, our bearings typically provide 10-15 years of reliable service in standard marine applications. Harsh conditions may require more frequent inspection.
Q: Do you provide installation support?
A: Yes, we offer installation guidance and technical consultation to ensure proper bearing installation and optimal performance.
Q: Can you customize bearings for special marine applications?
A: Absolutely. We specialize in custom solutions for unique operating conditions, load requirements, and dimensional constraints.
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Contact Us
When you choose our Slewing Bearing For Marine Crane, you're investing in proven reliability for your critical maritime operations. Contact us at mia@hgb-bearing.com to discuss your specific requirements and discover how our bearing solutions can enhance your crane performance.
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