Advantages of Double Row Different Diameter Ball slewing bearing
Double Row Different Diameter Ball slewing bearing is an important member of the slewing bearing family. Thanks to its unique structural design, it exhibits significant advantages in numerous industrial fields, performing outstandingly in aspects such as load – bearing performance, space utilization, operational stability, and wide adaptability to application scenarios.
What is Double Row Different Diameter Ball slewing bearing?
The Double Row Different Diameter Ball slewing bearing, also known as the double-row slewing bearing with non-equal-diameter balls, is a type of slewing bearing. It has three raceways. The upper and lower rows of steel balls and spacers can be directly inserted into the raceways, and the diameters of the two rows of steel balls are different. This structure enables the load-bearing angles of its upper and lower circular arc raceways to be both 90°, allowing it to withstand extremely large axial forces and overturning moments. It has relatively large axial and radial dimensions and a firm structure. It is often used in handling machinery such as tower cranes and truck cranes with a medium or larger diameter. When these devices are in operation, it ensures the stable and flexible rotation of the rotating parts, bears various complex loads, and maintains the normal operation of the equipment.
Characteristics of Double Row Different Diameter Ball slewing bearing
In terms of load – bearing capacity, Double Row Different Diameter Ball slewing bearing has obvious advantages. Its double – row ball design with different diameters enables a more reasonable load distribution. Larger – diameter balls can bear greater radial forces and overturning moments, while smaller – diameter balls play an important role in bearing axial forces. When a large – scale port crane is operating, the equipment needs to withstand the huge radial force generated by lifting heavy objects, the overturning moment caused by the extension of the boom and the swing of the heavy object, as well as the axial force brought by the equipment’s own weight. Double Row Different Diameter Ball slewing bearing can skillfully distribute these complex loads to balls of different diameters. Through their coordinated action, the overall load – bearing capacity is effectively improved. Compared with single – row ball slewing bearings, it can bear a greater load within the same spatial dimensions, or reduce the volume and weight of the slewing bearing when bearing the same load. This is of great significance for the lightweight design and efficient operation of large – scale equipment.
In terms of space utilization, Double Row Different Diameter Ball slewing bearing shows unique advantages. In some application scenarios with extremely high requirements for equipment compactness, such as small – scale wind turbines, the limited nacelle space requires the installation of an efficient slewing bearing. By ingeniously designing double – rows of balls with different diameters, this slewing bearing can significantly improve the load – bearing capacity and rotational stability without increasing the radial dimensions too much. Compared with other slewing bearings with equivalent load – bearing capacities, it occupies less space, providing more possibilities for the layout of other components inside the equipment. This helps to achieve the miniaturization and integrated design of the equipment, improving the overall space utilization and compactness of the equipment.
Operational stability is another prominent advantage of Double Row Different Diameter Ball slewing bearing. Due to the different diameters of the balls and their double – row distribution, during the rotation process, they can better adapt to load changes and unevenness. When the equipment is subjected to impact loads or vibrations, balls of different diameters can buffer and absorb energy through different deformations and displacements, reducing the impact on the overall structure. When a tower crane on a construction site is operating, it often encounters the impact of suddenly lifting heavy objects and the vibration caused by the wind. Double Row Different Diameter Ball slewing bearing can effectively alleviate the impact of these external forces on the equipment’s slewing system, ensuring that the rotation of the boom is smooth and avoiding shaking or jamming. This improves the safety and stability of equipment operation and is also conducive to improving construction accuracy and efficiency.
This type of slewing bearing also has strong adaptability to different working conditions. It can maintain good performance in harsh environments such as high – temperature, low – temperature, and dusty conditions. In high – temperature environments, for example, in the converter equipment of the metallurgical industry, the slewing bearing needs to operate normally under the influence of high – temperature radiation and hot air currents. Double Row Different Diameter Ball slewing bearing uses special high – temperature – resistant materials and lubrication systems, combined with its reasonable structural design, to effectively resist the impact of high temperatures on the balls and raceways, ensuring the smooth rotation. In low – temperature environments, such as polar scientific research equipment, by optimizing the low – temperature performance of materials and the sealing structure, it can prevent the balls and raceways from becoming brittle or freezing due to low temperatures, ensuring that the equipment can still operate reliably under extremely low – temperature conditions. In dusty environments, such as mining equipment, its good sealing design and structural stability can effectively prevent dust from entering the interior, reducing wear and extending the service life.
In terms of precision retention, Double Row Different Diameter Ball slewing bearing also performs outstandingly. In precision equipment, such as optical tracking instruments, extremely high requirements are placed on rotational accuracy. By precisely controlling the diameter tolerances of the balls and the installation accuracy, as well as optimizing the processing technology of the raceways, this slewing bearing can maintain stable rotational accuracy during long – term use. The cooperation of balls with different diameters further reduces the clearance and shaking during the rotation process, providing a high – precision rotation foundation for the equipment. This ensures that optical instruments can accurately track targets and meet the high – precision requirements in scientific research and production.
Price of Double Row Different Diameter Ball slewing bearing
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.
Supplier of Double Row Different Diameter Ball slewing bearing
In the slewing bearing field, Ldb bearing company shines like a bright star globally with its outstanding quality and innovative capabilities. Advanced production and testing equipment are the foundation of high – quality products. Ldb bearing company deeply understands this and is equipped with nearly 30 sets of various types of equipment, providing hardware support for precision processing. At the same time, the company has an experienced design and technical team. With their profound professional knowledge and innovative spirit, they continuously optimize product designs and overcome technical problems. With excellent product quality, strong technical strength, and a complete service system, Ldb bearing company has already become a benchmark in the slewing bearing industry.
