External Gear Slewing Bearing

External Gear Slewing Bearings integrate a slewing ring bearing with an externally machined gear, enabling simultaneous load support and rotational drive. By combining bearing and gear functions into one compact unit, these bearings simplify system design, reduce installation space, and improve transmission efficiency. They are widely used in rotating structures requiring smooth motion, precise positioning, and reliable torque transmission.

Operating Conditions

• Designed to withstand combined axial loads, radial loads, and overturning moments

• Suitable for low to medium rotational speeds

• Operates reliably under heavy loads, shock loads, and continuous-duty conditions

• Compatible with grease or oil lubrication systems

• Performs well in harsh environments such as dust, vibration, and outdoor exposure

Key Advantages

• Integrated external gear design eliminates the need for separate ring gears

• High load-carrying capacity with excellent moment resistance

• Compact structure reduces overall system weight and installation complexity

• Smooth rotation with stable torque transmission

• Easy mounting and maintenance, suitable for large-diameter applications

Structural Types

• Single-row ball slewing bearing with external gear

• Double-row ball slewing bearing with external gear

• Three-row roller slewing bearing with external gear

• Customized designs available for specific load and precision requirements

Applications

• Construction machinery (cranes, excavators, aerial work platforms)

• Port and material handling equipment

• Wind power yaw and pitch systems

• Industrial turntables and rotary platforms

• Metallurgy, mining, and heavy-duty machinery

• Automation and positioning systems

OEM / Customization

This bearing supports OEM services and customization, allowing customers to specify brand labeling, lubrication options, precision tolerances, or packaging according to their requirements. It can be tailored to meet unique operational needs, ensuring optimal performance and full compatibility with customer-specific equipment.