Application Scenarios of Double – Row Ball Slewing Bearings
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.
