Three-Row Roller Slewing Ring Bearings

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.