SKF slewing bearings are a type of bearing used to connect adjacent machine components, typically consisting of an inner ring and an outer ring, one of which typically has a built-in gear. They achieve optimized power transmission through installation holes on the ring, with a simple and fast connection method. The design of slewing bearings enables them to withstand single or combined loads and function properly in any direction
Design and functionality
SKF slewing bearings are designed to withstand radial, axial, or composite loads. Its structure includes rolling elements and cages or spacers, which enable the bearing to maintain good working performance under various working conditions. In addition, SKF offers standard and customized slewing beads with diameters ranging from 0.1 meters to 18 meters to meet the needs of different applications
Application scenarios
SKF slewing bearings are widely used in various mechanical systems, especially in situations where high precision and reliability are required. They are commonly used in fields such as construction machinery, port machinery, wind power equipment, cranes, excavators, etc. For example, in wind power equipment, slewing bearings can control the movement of blades and nacelle, thereby improving the performance and reliability of the turbine
Performance characteristics
SKF sliding bearing have the following characteristics:
Optimization design: By redesigning the geometric shape and enhancing the sealing performance, the energy output and reliability of the turbine have been improved
High durability: Using high-quality materials and advanced manufacturing processes to ensure that bearings can operate stably for a long time even in harsh environments
Wide application range: from 0.1 meters to 18 meters in diameter, suitable for various mechanical equipment
Manufacturer information
SKF Group is headquartered in Gothenburg, Sweden and is a leading global manufacturer of rolling bearings. The company was founded by Sven Wingquist in 1907 and is known for inventing double row automatic centering ball bearings. SKF operates in over 130 countries worldwide, producing hundreds of millions of bearings annually and providing comprehensive technical support and services
SKF Slewing Bearings (also known as turntable bearings) are large-diameter, heavy-duty bearings designed to support axial, radial, and moment loads in rotational applications. These bearings are essential for machinery requiring smooth, controlled rotation under heavy loads, such as cranes, wind turbines, excavators, and solar tracking systems.
SKF slewing bearings feature integrated gear teeth, sealing systems, and mounting holes, making them a complete solution for rotational motion in industrial and renewable energy applications.
Key Technical Specifications of SKF slewing bearings
Bearing Types:
Single-Row Ball Slewing Bearings: For moderate loads and high precision
Double-Row Ball Slewing Bearings: Higher load capacity and rigidity
Crossed Roller Slewing Bearings: Maximum moment load resistance
Three-Row Roller Slewing Bearings: Extreme load capacity (e.g., mining excavators)
Gear Options:
Internal/External Gear Teeth: For motor-driven rotation
Spur/Helical Gears: Optimized for smooth meshing
Sealing Systems:
Labyrinth Seals: Non-contact, low-friction protection
Rubber Seals (NBR/FKM): High sealing efficiency in harsh environments
Mounting Configurations:
Bolt-on Flanges: Easy installation
Adapter Sleeves: For precise shaft fitting
Competitive Advantages of SKF slewing bearings
- High Load Capacity
Optimized raceway geometry for even load distribution
Preloaded designs for rigidity in high-moment applications
- Long Service Life
Advanced heat treatment for fatigue resistance
SKF NoWear® coating reduces wear by 70%
- Smart Bearing Technology
SKF Insight® sensors for real-time monitoring
Predictive maintenance via vibration/temperature analysis
- Easy Installation & Maintenance
Pre-drilled mounting holes for quick assembly
Split designs available for retrofit applications
SKF Slewing Bearings are engineered for maximum durability, precision, and load capacity in demanding rotational applications. With options for standard, heavy-duty, and smart sensor-equipped bearings, SKF provides solutions for industries ranging from wind energy to mining.
