Luoyang Xinqianglian Slewing Bearing Co., Ltd.
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    Luoyang Xinqianglian Slewing Bearing Co., Ltd.
    Double-Row Ball Slewing Bearings

    Double-Row Ball Slewing Bearings

    Slewing ring bearing with two rows of balls
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    • Slewing Bearings / Slewing Rings
    • Double-Row Ball Slewing Bearings
    Double-Row Ball Slewing Bearings
    Double-Row Ball Slewing Bearings Double-Row Ball Slewing Bearings

    The double-row ball slewing bearing features a design with two rows of balls, where the rolling elements make point contact with the raceways. Each row of steel balls is responsible for bearing loads in the upper and lower directions, respectively. This configuration offers several advantages, including greater tolerance to installation inaccuracies and deformation of the mounting structure, making it a reliable choice even in challenging environments. The double-row design also enhances load distribution, improving overall stability and performance.

    Typically, these bearings are made from 42CrMo4 steel with induction-hardened raceways, ensuring durability and long service life. However, materials can be customized based on specific application requirements and customer preferences.

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    Manufacturing Capability

    At LYXQL, we have advanced manufacturing capabilities for producing Double-Row Ball Slewing Bearings. Currently, we can process bearings with a maximum outer diameter of 12 meters for integrated structures.

    Additionally, we can handle a wide range of gear module sizes, with maximum module 45 and minimum module 4.

    (We are capable of customizing non-standard products based on specific customer requirements.)

    Manufacturing Capability
    Options of Slewing Bearings

    Double-row ball slewing bearings are available in three configurations: external gear, internal gear, and gearless designs. Each type includes essential components like inner and outer rings, steel balls, spacers (bearing cages), and seals. Depending on the application, additional protective features such as dust covers or ash shields can be added to enhance durability and performance, ensuring that the bearing meets the specific needs of your project.

    Options of Slewing Bearings
    Slewing ring with external gear
    Slewing ring with external gear
    Slewing ring with external gear

    Features gear teeth on the outer ring, making it ideal for applications where the gear mesh occurs externally. Due to the external positioning of the gear teeth, this design typically requires more installation space compared to an internal gear design, as the gears interact outside of the bearing structure. This configuration is well-suited for machinery where space constraints are less of a concern, and where the external gear arrangement can provide effective load distribution and ease of maintenance.

    Slewing ring with internal gear
    Slewing ring with internal gear
    Slewing ring with internal gear

    Has gear teeth located on the inner ring, allowing the gear mesh to occur inside the bearing. This internal configuration typically requires less installation space compared to an external gear design, making it a more space-efficient option.

    Slewing ring without gear
    Slewing ring without gear
    Slewing ring without gear

    Features smooth inner and outer rings with no gear teeth. This gearless design is typically used in applications where there is no need for gear interaction, offering a simpler and more straightforward solution. It provides flexibility in design and can be an ideal choice for systems where the absence of gears helps to simplify the structure and reduce maintenance requirements.

    Applications

    Our products are widely utilized in wind turbines, marine equipment, tunnel boring machines, and construction machinery. Notably, our wind turbine products are well-known in the market, where we are recognized for offering turnkey solutions that cater to the unique needs of our clients.

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    Slewing bearing used in mobile crane Slewing bearing used in mobile crane
    Slewing bearing used in onshore crane Slewing bearing used in onshore crane
    Slewing bearing used in marine deck crane Slewing bearing used in marine deck crane

    What is a Double-Row Ball Slewing Bearing?

    This type of slewing bearing features an inner ring, outer ring, two rows of steel balls, and spacers. Its dual-row configuration significantly increases load-carrying capacity, allowing it to support large axial forces, radial forces, and overturning moments simultaneously—ideal for demanding applications.

    What are the main application areas for Double-Row Ball Slewing Bearings?

    These bearings are widely used in:
    • Large construction machinery
    • Port handling equipment
    • Cranes
    • Wind turbines
    • Rotating bridge structures

    They are suitable for any application requiring high load capacity and stability.

    What key factors should be considered when selecting a slewing bearing?

    • Load capacity
    • Dimensional precision
    • Rotational speed requirements
    • Overall size and installation space
    • Sealing and lubrication conditions
    • Manufacturing quality and process reliability

    Do you offer customized slewing bearing solutions?

    Yes. Our experienced engineering team provides custom solutions tailored to your specific requirements. We manufacture slewing bearings ranging from an inner diameter of around 200 mm to an outer diameter of 20 meters or more.
    Related Products We Offer

    Our main products include wind turbine main bearings, yaw bearings, pitch bearings, gearbox bearings, marine equipment slewing bearings, tunnel boring machine bearings and components, wind turbine shrink discs, and high-speed couplings.

    Three-Row Cylindrical Roller Slewing Bearings
    Three-Row Cylindrical Roller Slewing Bearings

    Three-row cylindrical roller slewing bearings is built for applications requiring exceptional load-handling capabilities.

    Roller/Ball Combined Slewing Bearings
    Roller/Ball Combined Slewing Bearings

    The roller/ball combined slewing bearing integrates both rollers and balls within its structure, providing a balanced approach to load management.

    Cross Cylindrical Roller Slewing Bearings
    Cross Cylindrical Roller Slewing Bearings

    Cross cylindrical roller slewing bearings are designed for applications that demand high rigidity and precise load handling.

    Four-Point Contact Ball Slewing Bearings
    Four-Point Contact Ball Slewing Bearings

    The four-point contact ball slewing bearing is designed with rolling elements and raceway for point contact. With compact structure and flexible rotation, the slewing bearing not only can simultaneously withstand axial load, radial load, overturning moment, but also can withstand a single direction load.

    Luoyang Xinqianglian Slewing Bearing Co., Ltd.
    Slewing Bearing Solutions

    Specialists in bearings for wind turbines, marine equipment, and tunneling machines. We deliver quality, expertise, and reliable service.

    sales@lyxql.cc
    +86-379-62811060
    Contact us
    Other Products
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    Tunnel Boring Machine Bearings Read More
    Slewing Bearings for Large Marine Equipment
    Slewing Bearings for Large Marine Equipment Read More
    Bearing Components
    Bearing Components Read More
    Luoyang Xinqianglian Slewing Bearing Co., Ltd.
    Luoyang Xinqianglian Slewing Bearing Co., Ltd.
    Slewing Bearing Solutions
    sales@lyxql.cc
    +86-379-62811060
    Contact us
    Why Us
    • R&D
    • Manufacturing
    • Quality Control
    Service
    • Customized Bearings Production
    • Bearing Mounting & Commissioning
    • Bearing Inspection & Maintenance
    • Bearing Replacement & Repair
    • Spare Parts Supply & Shipping
    Products
    • Slewing Bearings / Slewing Rings
    • Spherical Plain Bearings
    • Wind Turbine Bearings
    • Tunnel Boring Machine Bearings
    • Slewing Bearings for Large Marine Equipment
    • Bearing Components
    Application
    • Energy
    • Tunneling
    • Ferris Wheel
    • Port Equipment
    • Construction Equipment
    • Mining Equipment
    • Stacker Reclaimer
    • Floating Crane
    • Machine Tool
    • Metallurgical Equipment