Large Diameter Slewing Bearing
2. Product Structures: We offer a variety of large-diameter slewing bearing configurations, including single-row four-point contact ball bearings, double-row different-diameter ball bearings, triple-row roller bearings, and cross-roller bearings.
3. Size Range: Inner diameter range: 2000mm-8000mm, outer diameter range: 250mm-10000mm, height range: 100mm-600mm. We also support custom oversized sizes.
4. Materials: Base material: 42CrMo, 50Mn special alloy steel
Rolling elements: GCr15SiMn high-purity bearing steel
Seal material: Imported nitrile rubber or fluororubber
5. Applications:
Yaw and pitch systems for wind turbines, large excavators, stackers and reclaimers, large experimental turntables, astronomical observation equipment, steelmaking converters, continuous casting equipment, rolling mills, large container gantry cranes, and ship loading and unloading equipment
Large Diameter Slewing Bearing - Heavy-Duty Rotary Solutions
When your heavy equipment demands exceptional load capacity and precise rotation, you need a Large Diameter Slewing Bearing that delivers reliable performance. These specialized rotary joints are engineered for applications requiring extra-large diameters and outstanding load-bearing capabilities. Our product solutions provide the strength and precision your industrial operations require, ensuring smooth rotation even under the most demanding conditions.
What Makes Our Large Diameter Slewing Bearings Special?
At Luoyang Heng Guan Bearing Technology, we understand that size matters when it comes to heavy machinery. Our products are specifically designed to handle massive loads while maintaining smooth, precise rotation.
Key Features:
- Inner diameter range: 2000mm-8000mm
- Outer diameter range: 2500mm-10000mm
- Height range: 100mm-600mm
- Custom oversized dimensions available
- Multiple precision grades: P0, P6, P5, P4
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Superior Construction and Materials
Your equipment deserves the best materials and construction. That's why we use premium-grade components in every product we manufacture.
Material Excellence:
- Base material: 42CrMo and 50Mn special alloy steel for maximum strength
- Rolling elements: GCr15SiMn high-purity bearing steel for extended life
- Seal material: Imported nitrile rubber or fluororubber for superior protection
- Advanced heat treatment processes ensure dimensional stability
Versatile Design Options
We offer multiple configurations to match your specific application requirements:
Available Structures:
- Single-row four-point contact ball bearings
- Double-row different-diameter ball bearings
- Triple-row roller bearings
- Cross-roller bearings
Each design provides unique advantages for different load conditions and operational requirements.
Applications Across Industries
Our Large Diameter Slewing Bearing products serve critical functions in numerous heavy-duty applications:
Wind Energy:
- Yaw systems for wind turbines
- Pitch control mechanisms
Heavy Machinery:
- Large excavators and mining equipment
- Stackers and reclaimers
- Rolling mills and steelmaking converters
Marine & Port Equipment:
- Large container gantry cranes
- Ship loading and unloading systems
Specialized Equipment:
- Large experimental turntables
- Astronomical observation equipment
- Continuous casting equipment

Quality You Can Trust
With over 30 years of industry experience, we maintain strict quality standards throughout our manufacturing process. Our ISO9001 certification and RoHS compliance ensure you receive products that
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meet international standards.
Quality Assurance:
- Coordinate measuring machines for precision verification
- Vibration testing for smooth operation
- Life testing for durability confirmation
- Full traceability from raw materials to finished product
Custom Solutions for Your Needs
Every application is unique. Our engineering team provides comprehensive support for custom product solutions, including non-standard sizes and specialized configurations.
Our Services:
- Technical consultation and design support
- 3D modeling and engineering assistance
- Installation guidance
- Personalized customization options
Frequently Asked Questions
Q: What is the maximum size you can manufacture?
A: We can produce slewing bearings up to 10,000mm in diameter. For even larger sizes, we offer segmented solutions for easier transport and installation.
Q: How long does it take to manufacture a custom product?
A: Manufacturing time varies based on size and complexity. Standard large diameter bearings typically take 4-8 weeks, while custom solutions may require 8-12 weeks.
Q: Do you provide installation support?
A: Yes, we offer comprehensive installation guidance and technical support to ensure proper mounting and optimal performance.
Q: What maintenance is required for the products?
A: Regular lubrication, seal inspection, and periodic load checks are recommended. We provide detailed maintenance guidelines with each bearing.
Q: Can you help with bearing selection for my specific application?
A: Absolutely! Our engineering team provides free technical consultation to help you select the optimal bearing configuration for your requirements.
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Contact Us
Ready to discuss your large diameter slewing bearing needs? Contact our expert team at mia@hgb-bearing.com for personalized assistance and technical support.
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