— GLOBAL BESTSELLER BEARINGS
Slewing Bearings
Slewing Bearings are large-size rolling bearings designed to support axial loads, radial loads, and tilting moments in rotating structures. They typically consist of inner rings, outer rings, rolling elements, cages, seals, and mounting holes. Therefore, these bearings provide stable rotation and reliable support for cranes, wind turbines, construction machinery, and heavy industrial equipment.

Combined Load Support
High Rigidity
Low Friction
Corrosion Resistance
Integrated Systems
Long Service Life
Advantages
- Support heavy radial, axial, and moment loads through optimized designs.
- Maintain structural stiffness for stable operation under demanding conditions.
- Reduce friction losses through optimized raceway and rolling designs.
- Improve durability through advanced materials and optimized manufacturing processes.
- Protect bearing surfaces through effective treatment and protection technologies.
- Support additional features including gears, lubrication, monitoring, and sealing systems.
Classification of Slewing Bearings
Four Point Contact Ball
Four point contact ball slewing bearings use a single row of balls with specially designed raceways to support radial loads, axial loads, and tilting moments simultaneously. They provide compact structures, smooth rotation, and reliable performance for cranes, excavators, aerial platforms, and general rotating equipment.
Eight Point Contact Ball
Eight point contact ball slewing bearings feature optimized raceway designs that provide increased load capacity compared with conventional four point structures. They offer high rigidity, compact installation, and reliable operation for cranes, construction machinery, and applications requiring enhanced load support.
Cross Roller Slewing Bearings
Cross roller slewing bearings use cylindrical rollers arranged in alternating directions to achieve high rigidity and rotation accuracy. They provide excellent moment resistance and smooth operation for robotics, precision machinery, machine tools, and applications requiring accurate positioning performance.
Triple-Row Roller
Triple-row roller slewing bearings combine three roller raceway systems to achieve extremely high load capacity and rigidity. They are designed for heavy-duty applications including mining equipment, offshore machinery, large cranes, and construction equipment operating under severe conditions.
Bearing Range & Customization Capabilities
HSN supplies standard and customized slewing bearings with diameters ranging from 100 mm to over 1000 mm. Our products cover four point contact ball, eight point contact ball, cross roller, and three row roller slewing bearing designs for various industrial applications. In addition, HSN provides customized solutions for materials, structures, dimensions, gear configurations, sealing designs, precision, lubrication, and harsh operating conditions.
| series | Diameter Range |
|---|---|
| VA Series | 188 mm – 309 mm |
| VI Series | 288 mm – 420 mm |
| VU Series | 179 mm – 680 mm |
| VLA20 Series | 414 mm – 1094 mm |
| VSA20 Series | 414 mm – 1094 mm |
| XA Series | 235 mm – 352 mm |
| ...... | ...... |
Specifications of Slewing Bearings
Application Industries
Slewing Bearings are widely used in industries requiring large rotating structures and reliable load support. Their designs provide stable operation under heavy loads, impact forces, and complex working conditions. Therefore, these bearings are commonly applied in wind energy, construction machinery, mining equipment, marine engineering, industrial automation, metallurgy equipment, and material handling systems where high load capacity and rotation reliability are required.
Interchangeable Brands
HSN reviews the product ranges and technical features of leading global slewing bearing brands, including SKF, FAG, IMO, Iraundi, Rothe Erde, CS, ISB and Timken, and compares them across key aspects such as bearing structures, dimensional standards, load capacities, gear configurations, sealing designs, clearance requirements, lubrication methods, and application conditions. By analyzing the technical characteristics and performance parameters of different brands, HSN helps customers understand product differences and provides reliable solutions for industrial purchasing, equipment maintenance, bearing replacement, and slewing bearing selection.
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