Three-Row Cross Roller Slewing Ring Bearing

What Are Three-Row Cross Roller Slewing Bearings?

Three-row cross roller slewing ring bearings are engineered for extreme axial, radial, and tilting moment loads. Their structure includes three separate raceways: one row for axial load, one for radial load, and one for moment load, each supported by cylindrical rollers arranged in orthogonal patterns. This separation of load paths ensures superior stability, increased load capacity, and long-lasting performance.

Available Configurations

To meet different application and installation needs, we provide the following configurations:

• Internal Gear: Space-saving and protected for internal drive mechanisms.
• External Gear: Easy to access and ideal for systems requiring high torque transfer.
• Without Gear: For friction drives or custom gear setups.

Brand Interchangeability

Our three-row slewing ring bearings are designed to be fully interchangeable with industry-leading brands, offering seamless integration for both OEMs and replacement applications:

• KAYDON
• ROTEK
• ROTHEERDE

Applications

Due to their exceptional load-handling capabilities, three-row slewing bearings are ideal for:

• Large excavators and construction cranes
• Marine cranes and offshore lifting equipment
• Heavy-duty rotary drilling rigs
• Wind turbine yaw and pitch systems
• Turntables for heavy manufacturing and assembly

Key Advantages

• Supports extremely high axial, radial, and moment loads simultaneously
• Rigid and robust design for high structural stability
• Optimized raceway layout for efficient load distribution
• Available with or without integrated gears for design flexibility
• Engineered for long service life in harsh environments

Selection Tips

When choosing a three-row slewing bearing, keep in mind the following factors:

• Maximum load ratings and load separation needs
• Mounting space and installation constraints
• Drive system compatibility (internal, external, or gearless)
• Exposure to temperature, shock, vibration, or corrosive conditions

Why Choose Our Bearings?

Our three-row cross roller bearings combine cutting-edge design with proven durability:

• Manufactured with high-grade steel and tight tolerances
• Interchangeable with global brand models for fast replacements
• Strict quality control for consistent, reliable performance
• Technical support and customization available upon request

Whether you’re designing heavy-duty machinery or replacing critical components, our slewing ring bearings offer performance, reliability, and peace of mind.