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Advantages of Using Double-Row Ball Slewing Bearings

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As an important member of the slewing bearing field, the double-row ball slewing bearing, with its unique structure and excellent performance, demonstrates significant advantages in numerous industrial and civil fields. It excels in terms of load-carrying capacity, stability, cost-effectiveness, and maintenance convenience.

What is Double-Row Ball Slewing Bearing?

The double-row ball slewing bearing is a type of slewing bearing. It consists of two rows of rolling elements (steel balls or rollers), and its structure includes components such as an inner ring, an outer ring, two rows of rolling elements, and a cage. Compared with slewing bearings with a single row of rolling elements, double-row ball slewing bearings have a stronger load-carrying capacity and can simultaneously withstand larger axial forces, radial forces, and overturning moments. This characteristic makes it suitable for large-scale mechanical equipment with high load requirements, such as large cranes and port handling machinery. It can ensure that the rotating parts of the equipment can still rotate stably and flexibly under heavy load conditions, thereby improving the reliability and efficiency of the equipment’s operation.

Remarkable Advantages of Double-Row Ball Slewing Bearings

One of the most prominent advantages of the double-row ball slewing bearing lies in its powerful load-carrying capacity. Composed of an inner ring, an outer ring, and two rows of steel balls, this structural design enables it to withstand axial forces, radial forces, and overturning moments simultaneously. During the operation of large port cranes, lifting heavy objects generates huge radial forces, the extension of the boom and the swing of the heavy object trigger overturning moments, and the equipment’s own gravity also brings axial forces. The two rows of steel balls of the double-row ball slewing bearing work in coordination to evenly distribute these complex and huge loads, ensuring that the slewing platform of the crane can still rotate smoothly under full load conditions. Compared with single-row ball slewing bearings, under the same size conditions, the load-carrying capacity of double-row ball slewing bearings has been significantly improved, which can meet the heavy-load operation requirements of large-scale mechanical equipment and guarantee the safety and reliability of the equipment’s operation.

Rotary stability is another significant advantage of double-row ball slewing bearings. The uniform distribution of the two rows of steel balls effectively enhances the stability of the support structure. During the slewing process of tower cranes, even when encountering interference factors such as strong winds and heavy object swaying, the double-row ball slewing bearing can, with its stable structure, reduce vibrations and displacements during the slewing process. This stability not only helps to improve the operation accuracy of the equipment but also reduces the wear of equipment components and extends the service life of the equipment. For mechanical equipment that requires high-precision operation, such as the rotary worktable of precision machining machine tools, the double-row ball slewing bearing can ensure the high-precision positioning of the worktable during the slewing process, ensuring the dimensional accuracy and surface quality of the machined parts and meeting the stringent requirements for precision in the high-end manufacturing field.

In terms of cost-effectiveness, double-row ball slewing bearings have obvious advantages. From the perspective of manufacturing costs, their structure is relatively simple. Compared with some slewing bearings with complex structures, the manufacturing process is less difficult, and the required processing equipment and processes are relatively conventional, which effectively controls the manufacturing costs. In terms of procurement costs, due to their low manufacturing costs, their prices are usually more competitive than other high-end slewing bearings with equivalent load-carrying capacities. During the use process, the low maintenance costs of double-row ball slewing bearings further enhance their cost performance. Their structural design facilitates daily inspection, lubrication, and maintenance work. For example, at construction sites, the construction environment is harsh, and the equipment is used frequently. However, the double-row ball slewing bearing is easy to disassemble and install. Maintenance personnel can easily clean, lubricate, and inspect its components, promptly discover and address potential problems, reducing the equipment downtime due to failures and maintenance costs, and improving the equipment’s use efficiency and economic benefits.

The installation convenience of double-row ball slewing bearings is also a major highlight. Its structure is compact, and the installation dimensions are highly standardized. During the assembly process of mechanical equipment, installers can quickly and accurately complete the installation work according to clear installation guidelines. Take the aerial work platform as an example. During on-site assembly, the double-row ball slewing bearing can be quickly adapted to other components, reducing the installation time and difficulty and improving the equipment’s assembly efficiency. Moreover, the standardized installation dimensions make it more convenient to maintain and replace the slewing bearing in the later stage of the equipment. There is no need to make large-scale modifications to the equipment structure, reducing the complexity and cost of maintenance.

Double-row ball slewing bearings also have good versatility. They are applicable to a variety of different types of mechanical equipment, covering multiple fields such as construction machinery, port machinery, industrial robots, and amusement facilities. In the construction machinery field, small excavators, loaders, and other equipment use double-row ball slewing bearings to meet their slewing requirements in complex working conditions; in amusement facilities, equipment such as carousels and Ferris wheels rely on double-row ball slewing bearings to achieve stable slewing movements, bringing a safe and comfortable experience for tourists; in the industrial robot field, double-row ball slewing bearings can provide stable support and flexible slewing functions for robot joints, meeting the high-precision operation requirements of robots on the production line. This wide range of versatility enables double-row ball slewing bearings to play an important role in different industries, reducing the costs and management difficulties for enterprises to stock multiple types of slewing bearings due to different equipment types.

With the continuous progress of industrial technology, the performance of double-row ball slewing bearings is also continuously optimized. By using new materials, improving manufacturing processes, and optimizing the structural design, key performance indicators such as their load-carrying capacity, stability, and service life have been further enhanced. In the future, double-row ball slewing bearings will, with their numerous advantages, be applied and expanded in more emerging fields, providing strong support for industrial development and social progress.

The Price of Double-Row Ball Slewing Bearings

There are many factors that affect the price of slewing bearings. Firstly, the raw materials. High-quality steel has a high cost, and products made from it have excellent performance and a long service life, so the price is also high. Secondly, slewing bearings with complex manufacturing processes and high precision requirements require advanced equipment and strict quality control, and their prices will also increase accordingly. Furthermore, the larger and more special the size and specifications are, the greater the processing difficulty and material consumption, and the higher the price.

Suppliers of Double-Row Ball Slewing Bearings

In the slewing bearing field, the ldb bearing company shines like a bright star globally with its excellent quality and innovation capabilities. Since its establishment in Luoyang, the bearing production base in China, in 1999, with its profound heritage and unremitting efforts, it has become a leading enterprise in the industry. Relying on excellent product quality, strong technical strength, and a complete service system, the ldb bearing company has become a benchmark in the slewing bearing industry. In the future, it is believed that it will continue to adhere to the concept of innovation and quality first and shine more brightly in the global market, contributing more to the development of various industries.

Application Scenarios of Double – Row Ball Slewing Bearings

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As an important member of the slewing bearing family, the double – row ball slewing bearing has a wide range of crucial applications in multiple fields due to its unique structure and performance characteristics. Its advantages such as simple structure and easy installation make it an ideal choice for many mechanical devices.

What is Double – Row Ball Slewing Bearing?

The double – row ball slewing bearing is a type of slewing bearing. It has two rows of rolling elements (steel balls or rollers) and its structure includes components such as an inner ring, an outer ring, two rows of rolling elements, and a cage. Compared with slewing bearings with a single row of rolling elements, double – row ball slewing bearings have a stronger load – bearing capacity and can simultaneously bear larger axial forces, radial forces, and overturning moments. This characteristic makes it suitable for large – scale mechanical equipment with high load – bearing requirements, such as large – scale cranes and port handling machinery. It can ensure that the rotating parts of the equipment can still rotate stably and flexibly under heavy – load working conditions, thereby improving the reliability and efficiency of the equipment’s operation.

Applications of Double – Row Ball Slewing Bearings

In the construction machinery field, double – row ball slewing bearings are extremely common. Small cranes are typical representatives. These cranes are often used in scenarios such as construction sites and warehouse loading and unloading. During operation, small cranes need to frequently lift and transport goods, which requires the slewing bearing to be able to bear the radial force generated by the weight of the goods and also deal with the axial force and overturning moment generated when the boom rotates. The two rows of steel balls of the double – row ball slewing bearing are evenly distributed between the inner and outer rings, which can effectively disperse these loads and ensure the stability of the crane during the lifting and slewing processes. Compared with other types of slewing bearings, it has a lower cost and a more compact structure when bearing the same load, which is very suitable for the space and cost requirements of small cranes.

The aerial work platform is also one of the important application scenarios for double – row ball slewing bearings. In aerial work such as urban construction, bridge maintenance, and street lamp installation, the aerial work platform needs to safely and stably lift workers to the designated height for operation. The slewing function of the platform is crucial, and the double – row ball slewing bearing provides reliable slewing support for it. It can enable the platform to flexibly adjust the working angle, ensuring that workers can easily reach various working positions. Moreover, the double – row ball slewing bearing has a simple structure, which is convenient for installation and maintenance. This is particularly important for aerial work platforms that need to be moved and used frequently. In narrow urban streets or construction sites, its compact structure does not take up too much space, improving the practicality of the equipment.

In small – scale wind turbines, the double – row ball slewing bearing plays an indispensable role. Wind turbines need to adjust the direction of the blades in a timely manner according to the change of the wind direction to obtain the maximum wind energy. The double – row ball slewing bearing is installed between the nacelle and the tower. It can easily cope with various forces acting on the nacelle by the wind. Its two rows of steel balls can effectively bear the axial force to ensure that the nacelle does not have axial displacement during the rotation process. At the same time, the radial force and overturning moment can also be evenly distributed to the steel balls and raceways, ensuring that the nacelle rotates stably around the tower. This slewing bearing has a simple structure and a relatively low cost, which is very suitable for the needs of small – scale wind turbines. In some remote areas or small – scale distributed energy projects, small – scale wind turbines equipped with double – row ball slewing bearings provide clean and sustainable energy for local areas.

In the amusement facilities field, double – row ball slewing bearings are also widely used. The carousel is a popular amusement facility, and its operation requires a stable slewing bearing. The double – row ball slewing bearing is installed between the central shaft and the platform of the carousel. It can bear the radial force generated by the weight of the platform and passengers, as well as the axial force and overturning moment generated during the rotation process. Its simple structure and reliable performance ensure the stability and safety of the carousel during long – term operation. In addition, amusement facilities such as Ferris wheels and pendulum rides often use double – row ball slewing bearings at key slewing parts. These facilities generate complex stress conditions during operation. The double – row ball slewing bearing, with its good load – bearing capacity and stability, provides tourists with a safe and exciting amusement experience.

In the agricultural machinery field, some equipment also uses double – row ball slewing bearings. For example, when a large – scale sprinkler irrigates farmland, it needs to rotate around the central pivot to achieve large – area irrigation operations. The double – row ball slewing bearing is installed at the pivot of the sprinkler. It can bear the weight of the sprinkler itself, the weight of the water in the pipeline, and various forces generated during operation. Its simple structure and convenient maintenance make it very suitable for use in the outdoor environment of agricultural production. In some farmlands with complex terrains, its compact structure is also convenient for the installation and movement of the equipment, improving the irrigation efficiency and providing strong support for agricultural production.

Prices of Double – Row Ball Slewing Bearings

There are many factors that affect the price of slewing bearings. Firstly, raw materials play a significant role. High – quality steel has a high cost, and products made from it have excellent performance and long service life, so the price is also high. Secondly, slewing bearings with complex manufacturing processes and high – precision requirements need advanced equipment and strict quality control, which will also increase the price accordingly. Moreover, the larger and more special the size and specifications are, the greater the processing difficulty and material consumption, and the higher the price will be.

Suppliers of Double – Row Ball Slewing Bearings

In the slewing bearing field, Ldb bearing company shines like a bright star globally with its outstanding quality and innovative capabilities. Before sales, it provides professional selection suggestions according to customer needs and can also customize products or upgrade the existing slewing structures of mainframes. During the sales process, it strictly controls the production progress and quality to ensure the on – time and high – quality delivery of products. After sales, engineers are always ready to provide technical consultation services such as installation and maintenance. Regular satisfaction surveys are also carried out to collect customer feedback and continuously improve products and services.

Influence of the Number of Balls on the Performance of Slewing bearings

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Slewing bearings, as crucial components in the mechanical field, are widely used in equipment such as cranes, excavators, and tunnel boring machines. Their performance is restricted by many factors, and the number of balls is one of the important influencing factors, playing a key role in load – bearing capacity, slewing accuracy, friction characteristics, service life, and other aspects.

What is Double – Row Ball Slewing bearing?

The double – row ball slewing bearing is a mechanical component used to achieve the slewing motion of components. It mainly consists of an inner ring, an outer ring, two rows of steel balls with the same diameter, and a cage. The two rows of steel balls are evenly distributed between the inner and outer rings and jointly bear axial forces, radial forces, and overturning moments. Relative slewing is achieved through the contact and rolling of the steel balls and the raceways. It has a simple structure, is easy to install, can withstand complex loads to a certain extent, and is often used in equipment such as small cranes, aerial work platforms, and small wind turbines that do not require particularly high slewing accuracy but need to bear certain axial and radial forces.

What is Four – Point Contact Slewing bearing?

The four – point contact slewing bearing is a type of slewing bearing. It is composed of an inner ring, an outer ring, steel balls, and a cage. Its uniqueness lies in that each steel ball has four – point contact with the raceways of the inner and outer rings. This structure enables it to simultaneously bear large axial forces, radial forces, and overturning moments. During operation, the four – point contact can effectively disperse the load and reduce local stress concentration. It is often used in equipment with compact space requirements and the need to bear multiple types of loads, such as tower cranes and port cranes. Compared with other slewing bearings, the four – point contact slewing bearing has a compact structure, occupies less space, and can provide reliable slewing motion and stable load – bearing performance in a limited space.

Load – Bearing Capacity of Slewing bearings

Increasing the number of balls can enhance the load – bearing capacity of slewing bearings. In a double – row ball slewing bearing, the steel balls are evenly distributed to bear axial forces, radial forces, and overturning moments. More steel balls mean a larger load – bearing area and a more uniform load distribution, which can share the force on a single steel ball. Taking a port crane as an example, when the number of balls in the slewing bearing increases, it can effectively disperse the huge forces generated when lifting heavy objects, prevent excessive wear or deformation of the steel balls, thereby enhancing the overall load – bearing capacity of the support and ensuring the safe and efficient operation of the equipment. However, the number of balls is not the more the better. Excessive balls will increase the contact stress between them, leading to increased friction and energy consumption, and instead reducing the load – bearing efficiency.

Slewing Accuracy of Slewing bearings

Slewing accuracy is an important performance indicator of slewing bearings. Appropriately increasing the number of balls helps to improve slewing accuracy. More steel balls make the load distribution more uniform, reducing eccentricity and shaking caused by uneven loads. For example, in the slewing bearing of a precision radar device, by increasing the number of steel balls, the load fluctuation borne by a single steel ball is reduced, making the radar more stable during rotation, with a smaller angular error, and ensuring its accurate tracking of targets. However, too many balls will increase the manufacturing and installation difficulties. Once there are deviations in the size or installation accuracy of the steel balls, it will instead damage the slewing accuracy and cause the equipment to operate unstably.

Friction Characteristics of Slewing bearings

The change in the number of balls has a significant impact on the friction characteristics of slewing bearings. As the number of balls increases, the contact area increases, and the friction resistance will also increase accordingly. In some equipment with high requirements for slewing flexibility, too many steel balls will cause difficult rotation and increased energy consumption. For example, in an aerial work platform, if the number of balls in the slewing bearing is too large, the operator will feel obvious jamming when turning the platform, increasing the operation difficulty and energy consumption. Conversely, if the number of balls is too small, the pressure on a single steel ball is high, and the wear will be accelerated, which will also affect the smoothness of slewing. Therefore, it is necessary to select the appropriate number of balls according to the equipment working conditions to balance the friction resistance and load – bearing capacity and ensure the normal operation of the equipment.

Service Life of Slewing bearings

The number of balls is closely related to the service life of slewing bearings. Reasonably increasing the number of balls can extend the service life. When the number of balls is sufficient, the load borne by a single ball is relatively reduced, and the degree of wear is reduced, which can effectively reduce the occurrence of fatigue wear and plastic deformation. Taking the slewing bearing of a wind turbine as an example, more steel balls can better bear the complex loads generated by the rotation of the blades, reduce the wear of the steel balls and raceways, extend the service life of the slewing bearing, and reduce the maintenance cost. However, if the number of balls exceeds the reasonable range, due to increased friction and heat generation, it will accelerate the aging and fatigue of the material and shorten the service life.

When designing and selecting slewing bearings, it is necessary to comprehensively consider the working conditions and performance requirements of the equipment to determine the number of balls. For heavy – load equipment, such as large – scale mining machinery, it is necessary to increase the number of balls to enhance the load – bearing capacity; for high – precision equipment, such as optical tracking equipment, it is necessary to reasonably increase the number of balls to ensure slewing accuracy. In addition, factors such as material properties, manufacturing processes, and costs also need to be combined to optimize the design of the number of balls while ensuring performance. With the continuous progress of materials science and manufacturing technology, it is expected that breakthroughs will be made in the optimization of the number of balls for slewing bearings in the future. By using new materials and advanced manufacturing processes, the distribution of the number of balls can be made more reasonable, improving performance while reducing costs to meet the higher requirements of different fields for slewing bearings.

Prices of Slewing bearings

There are many factors affecting the price of slewing bearings. Firstly, raw materials. High – quality steel has a high cost and can produce products with excellent performance and long service life, so the price is also high. Secondly, for slewing bearings with complex manufacturing processes and high – precision requirements, advanced equipment and strict quality control are required, which will also increase the price accordingly. Moreover, the larger and more special the size and specifications are, the greater the processing difficulty and the amount of materials used, and the higher the price will be.

Suppliers of Slewing bearings

The products of ldb bearing company cover a wide range. Whether they are standard – sized or non – standard slewing bearings, the company can produce them with high quality to meet the diverse needs of different customers. In the field of industrial robots, its slewing bearings help the joints of robots achieve high – precision and high – stability rotational motion, making the robot’s movements flexible and precise. In solar power generation equipment, they assist the tracking system in accurately tracking the sun, improving power generation efficiency. The wide application of its products in multiple fields demonstrates its strength.

What is Double Row Ball Slew Bearing?

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It is a two-row ball structure and is widely used in mechanical equipment requiring high-precision rotation and heavy-load capacity. A double row ball slew bearing is a large rotational bearing designed to withstand combined axial loads, radial loads, and overturning moments.   

What is the feature of Double Row Ball Slew Bearing?

The double-ball slewing bearing integrates innovative design and practical functions. It has a compact structure and occupies a small space, enabling efficient operation within a limited space and being adaptable to a variety of precision equipment.The unique double-ball structure greatly enhances its load-bearing capacity, allowing it to withstand axial and radial loads as well as overturning moments simultaneously, and making it suitable for complex working conditions.The high-precision manufacturing process ensures the slewing accuracy, enabling smooth operation, reducing vibration and noise, and extending the service life of the equipment.It is easy to install and has a low maintenance cost, which can effectively reduce the downtime and improve production efficiency. Widely used in fields such as construction machinery and automated equipment, it is a key component that promotes the efficient development of the industry.

Basic Structure of Double Row Ball Slew Bearing  

Double Row Ball Arrangement:Two independent rows of steel balls (rolling elements) are arranged in concentric raceways, allowing simultaneous distribution of loads in different directions. 

Inner and Outer Rings: Precision-machined raceways on the fixed outer ring and rotating inner ring (or vice versa), often integrated with gear teeth to drive rotation. 

Seals and Lubrication: Equipped with sealing rings to prevent contamination and lubrication ports for regular greasing to extend service life. 

Core Functions 

Multi-Directional Load Capacity: 

Axial Loads: Forces along the rotation axis (e.g., vertical pressure from cranes). 

Radial Loads: Forces perpendicular to the rotation axis (e.g., lateral forces from robotic arms). 

Overturning Moments: Torque caused by eccentric loads (e.g., twisting forces from wind turbine blades). 

High Rigidity Rotation 

The double row ball structure distributes stress, minimizes deformation, and ensures smooth rotation. 

Advantages and Disadvantages of Double Row Ball Slew Bearings 

Advantages: 

High Load Capacity: Multi-directional load support: Suitable for complex stress scenarios (e.g., wind turbines, cranes). Double row design: Distributes loads across two rows, improving capacity by 30%~50% compared to single-row bearings and reducing localized stress. 

Smooth Operation with Low Friction: Small ball contact area reduces friction, enabling precise control (e.g., medical devices, radar antennas). Low heat generation extends lubrication intervals and bearing life. 

Compact and Integrated Design: Integration of gears (internal/external teeth), seals, and lubrication ports saves space. Ideal for applications with strict space constraints (e.g., industrial robot joints). 

Versatility

Material options (standard steel, stainless steel, anti-corrosion coatings) adapt to diverse environments (humid, corrosive). Suitable for low-speed heavy-load and medium-speed rotation scenarios. 

Disadvantages 

Limited Adaptability to Extreme Overturning Moments: Prone to ball slippage under high overturning moments compared to **crossed roller bearings, leading to localized wear. Extreme torque scenarios (e.g., heavy-duty machine tool turntables) require crossed or triple-row roller bearings. 

High Installation Precision Requirements: 

Base flatness tolerance must be ≤0.1 mm/m; deviations cause uneven raceway loading and accelerated fatigue failure. Demands experienced installers; improper installation risks early failure. 

Higher Maintenance Costs: 

Regular lubrication (every 500 operating hours) and seal replacement are critical; contamination shortens lifespan. Replacement in heavy machinery (e.g., wind turbines) requires costly disassembly and crane operations. 

Cost-Performance Trade-offs: More expensive than single-row ball bearings but weaker in load capacity than crossed roller bearings. Oversized models (e.g., diameter >5 meters) face manufacturing challenges and long lead times.

Application examples of this kind of bearings

In a wind turbine, the double-row ball slewing bearing is installed between the top of the tower and the nacelle:Axial force: The vertical pressure generated by the self-weight of the blades and the nacelle.Radial force: The lateral thrust caused by the wind shear force.Overturning moment: The torque generated by the aerodynamic imbalance during the rotation of the blades.

The load is dispersed through the two rows of balls, ensuring that the nacelle can yaw stably to align with the wind direction even under strong winds.

Factors Influencing the Price of Double Row Ball Slew Bearings 

The price of double row ball slew bearings is affected by multiple factors, including raw materials, manufacturing processes, and market dynamics. 

Material Costs: 

Steel Type: 

Standard bearing steel (e.g., GCr15) is cost-effective but corrosion-prone. 

Stainless steel (e.g., 440C) or specialty alloys (e.g., 42CrMo4) cost 30%~50% more but suit harsh environments (e.g., marine applications). 

Heat Treatment

Processes like carburizing and surface hardening improve hardness and wear resistance but add 15%~25% to processing costs. 

Size and Load Capacity: 

Diameter Range: 

Small bearings (diameter <1 meter): ¥10,000–¥50,000. Large bearings (diameter >3 meters, e.g., for wind turbines): ¥500,000–¥2,000,000 due to material and machining complexity. 

Load Rating: 

High-load designs (dynamic load rating >500 kN) require reinforced raceways and balls, increasing costs by 20%~40%. 

Manufacturing Complexity: 

Raceway Machining Accuracy: 

High-precision grinding (Ra ≤0.4 μm) costs 30%~50% more than standard turning (Ra ≤1.6 μm) but extends service life. 

Gear Integration: 

Internal/external gear machining requires specialized equipment; each precision grade improvement (e.g., DIN Class 6) adds 10%~15% to costs. 

Seal Design: 

Multi-lip or labyrinth seals cost 20%~35% more than standard rubber seals but offer superior dust/water resistance. 

Customization Requirements: 

Non-Standard Designs: 

Customized mounting holes or flange interfaces increase design and tooling fees (10%~20% of total cost). 

Special Coatings 

Zinc plating, Dacromet, or PTFE anti-corrosion coatings add 5%~15% to costs but suit chemical or marine environments. 

Market Factors: 

Supply-Demand Dynamics: 

Prices rise 10%~30% during high-demand periods (e.g., 2021 wind power installation surge). 

Regional Cost Differences 

Chinese-made bearings are 30%~50% cheaper than European/American equivalents due to lower labor and material costs. 

Transportation and Installation Costs

Logistics

Oversized bearings (e.g., 5-meter diameter) require special transport, with freight accounting for 5%~10% of total cost. 

Installation Complexity 

High-precision installation (flatness ≤0.1 mm/m) demands professional teams, increasing labor costs by 5%~8%. 

The double-row ball slewing bearing optimizes the load distribution through two rows of balls. It is a key component that balances the load-bearing efficiency and space occupation, and is widely used in heavy-duty rotating equipment that needs to bear complex loads. However, its installation accuracy and maintenance requirements are relatively high, and a comprehensive selection should be made according to the working conditions.

The price of double ball slewing bearing

The price of double ball slewing bearing is influenced by multiple factors. Raw material costs are crucial. Fluctuations in the prices of steel and other materials directly affect the product. The complexity of the manufacturing process, such as high – precision processing and the creation of the unique double ball structure, means that the more complex the process, the higher the cost. Different requirements for load – bearing capacity and precision also lead to price differences. Products with high load – bearing capacity and high precision are more expensive due to the greater investment in technology and quality control. When the supply is in short supply, the price rises, and when the supply exceeds demand, the price falls.

Supplier of Double Ball Slewing Bearings

If you want to purchase bearings, you can get in touch with us. LDB-Bearing Company has advanced bearing manufacturing techniques and ensures strict compliance with national standards. Moreover, our R&D team has continuously received research and development funds, which guarantees that we won’t fall behind our peers. We can provide you with different bearings tailored to various industries. Meanwhile, we have a complete after-sales service system. Once you have any problems, we will reply to you immediately and offer reasonable solutions. If you’d like to know more, please feel free to contact us.