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What fields are slewing bearings used in?

11-20, 2023 / in News / by PRS

Slewing bearings, also known as turntable bearings or slewing rings, are specialized bearings designed to handle axial, radial, and moment loads simultaneously. They consist of an inner and outer ring, rolling elements, and sometimes gear teeth for gear-driven applications. Slewing bearings find application in a variety of industries due to their ability to support heavy loads, facilitate smooth rotation, and accommodate complex movements. 

Slewing bearings applications

Slewing bearings

Construction Machinery

Excavators and Cranes: Slewing bearings are extensively used in excavators and cranes for their ability to support heavy loads and provide smooth rotation, allowing the equipment to turn and lift with precision.

Wind Turbines

Pitch and Yaw Systems: Slewing bearings are employed in the pitch and yaw systems of wind turbines. They allow the turbine blades to be adjusted for optimal wind capture (pitch control) and enable the entire turbine to rotate to face the wind (yaw control).

Mining Equipment

Bucket Wheel Excavators: Slewing bearings are used in bucket wheel excavators to facilitate the rotation of the massive bucket wheel, allowing efficient excavation in mining operations.

Material Handling Equipment

Cranes and Conveyor Systems: Slewing bearings play a critical role in cranes and conveyor systems, enabling the rotation of the load and facilitating the movement of materials in various directions.


Industrial Robots: Slewing bearings are integral components in the joints of industrial robots. They enable precise and controlled movement, allowing robots to perform tasks with accuracy in manufacturing processes.


Satellite and Radar Systems: Slewing bearings are used in satellite and radar systems to facilitate the rotation of antennas and sensors, allowing them to track celestial bodies or monitor specific areas.

Renewable Energy

Solar Tracking Systems: Slewing bearings are employed in solar tracking systems that adjust the position of solar panels to maximize exposure to sunlight throughout the day, optimizing energy capture in solar power installations.

Slewing bearings

Marine Applications

Cranes on Ships: Slewing bearings are utilized in cranes on ships for cargo handling. They enable the rotation and lifting of heavy loads during loading and unloading operations.

Medical Equipment

Radiographic Equipment: Slewing bearings are used in radiographic equipment, such as CT scanners and medical imaging devices, where precise and controlled rotation is required for accurate imaging.

Forestry Equipment

Harvesters: Slewing bearings are employed in forestry harvesters to facilitate the rotation of the cutting head, allowing efficient tree harvesting and processing.

Military and Defense

Turrets and Radar Systems: Slewing bearings are used in military applications for the rotation of turrets on armored vehicles and the movement of radar systems for surveillance.

In each of these applications, slewing bearings contribute to the efficiency, precision, and reliability of the machinery or equipment. The versatility of slewing bearings makes them essential components in a wide range of industries where rotational movement and load-bearing capabilities are critical.
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