Double Row Slewing Bearing
2. Product Structures: Double-row four-point contact ball bearings, double-row angular contact ball bearings, double-row deep groove ball bearings, double-row ball bearings with different diameters, and double-row gear bearings.
3. Size range: Inner diameter range: 200mm-3500mm, outer diameter range: 300mm-4000mm Height range: 50mm-250mm Gear module: M5-M35 optional, support special size and precision requirements
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:
Truck cranes, tower cranes, excavators, portal cranes, container cranes, large amusement rides, stage machinery, steelmaking converters, and rolling equipment
Double Row Slewing Bearing - High-Performance Rotating Solutions
When you need reliable rotating solutions for heavy machinery, a Double Row Slewing Bearing delivers exceptional performance and durability. These advanced rotating devices feature a sophisticated double-row ball structure that significantly enhances load capacity and operational stability. Whether you're working with wind turbines, construction equipment, or industrial machinery, our precision-engineered bearings provide the strength and reliability your applications demand. The optimized arrangement of two steel ball rows ensures smooth rotation under extreme conditions while maintaining zero clearance and high running accurac
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Superior Design for Maximum Performance
Our product systems are engineered with precision to meet your most demanding applications. The innovative double-row configuration distributes loads more effectively than single-row alternatives, resulting in extended service life and reduced maintenance requirements.
You'll find our bearings excel in applications requiring high torque transmission and precise positioning. The robust construction handles both axial and radial loads simultaneously, making them perfect for equipment that experiences complex loading conditions.
Comprehensive Product Range
We manufacture five distinct types to meet your specific requirements:
- Double-row four-point contact ball bearings - Ideal for applications with combined loads
- Double-row angular contact ball bearings - Perfect for high-speed operations
- Double-row deep groove ball bearings - Excellent for radial load applications
- Double-row ball bearings with different diameters - Customized for unique specifications
- Double-row gear bearings - Integrated gear solutions for direct drive applications
Each design undergoes rigorous testing to ensure optimal performance in your critical applications.

Technical Specifications
Our Double Row Slewing Bearing products accommodate a wide range of specifications:
Size Range:
- Inner diameter: 200mm to 3,500mm
- Outer diameter: 300mm to 4,000mm
- Height range: 50mm to 250mm
- Gear modules: M5 to M35 available
Premium Materials:
- Base construction: 42CrMo and 50Mn special alloy steel
- Rolling elements: GCr15SiMn high-purity bearing steel
- Sealing systems: Imported nitrile rubber or fluororubber
These materials ensure exceptional durability and performance across temperature extremes and challenging environments.
Diverse Applications
You'll discover our bearings performing reliably across numerous industries:
- Construction Equipment: Truck cranes, tower cranes, excavators
- Material Handling: Portal cranes, container cranes
- Entertainment Industry: Large amusement rides, stage machinery
- Heavy Industry: Steelmaking converters, rolling equipment
- Renewable Energy: Wind turbine pitch control systems
- Concrete Equipment: Pump trucks and mixing equipment
Quality You Can Trust
At Luoyang Heng Guan Bearing Technology, we maintain ISO9001 certification and RoHS compliance. Our precision manufacturing covers four accuracy grades: P0, P6, P5, and P4, ensuring you receive the exact specifications your application requires.
Our advanced testing facilities include coordinate measuring machines, vibration testers, and life testing equipment. Every bearing undergoes comprehensive quality checks before shipment.

Custom Solutions Available
We understand that standard products don't always meet unique requirements. Our engineering team provides custom bearing solutions, technical consultation, and design services. From initial concept to installation guidance, we support your project every step of the way.
Our capabilities extend beyond bearings to include large gears, shafts, ring gears, and couplings - providing complete rotating system solutions.
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FAQ
Q: What makes products different from single row bearings?
A: Double row designs provide significantly higher load capacity and improved stability through their optimized two-row ball arrangement, making them ideal for heavy-duty applications.
Q: What is the typical delivery time for standard sizes?
A: We maintain inventory of common sizes for quick delivery. Standard products typically ship within 2-3 weeks, while custom solutions may require 4-6 weeks depending on specifications.
Q: Can you provide bearings for extreme temperature applications?
A: Yes, we offer specialized materials and sealing solutions for extreme temperatures. Contact our engineering team at bonnie@hgb-bearing.com to discuss your specific requirements.
Q: Do you provide installation support?
A: We offer comprehensive installation guidance, technical documentation, and engineering support to ensure proper installation and optimal performance.
Q: What quality certifications do your bearings meet?
A: Our bearings comply with international standards including DIN, ISO, and GB specifications, and we maintain ISO9001 certification with RoHS compliance.
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Contact Us
For technical consultation or custom solutions, contact us at mia@hgb-bearing.com. Our experienced team is ready to help you find the perfect Double Row Slewing Bearing solution for your application.
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