What is Series Double Row Ball Slewing Bearing? The double-row or double-row ball slewing bearing has three races, and the steel balls and spacers can be directly discharged into the upper and lower raceways. The bearing angle of the track is 90°, which can bear a large axial force and tipping moment. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double-row ball slewing bearing are relatively large, and the structure is firm, especially suitable for loading and unloading machinery such as tower cranes and truck cranes that require a medium diameter or above.
Zhiyuan machinery is a professional Chinese double volleyball slewing bearing manufacturer and Chinese double volleyball slewing bearing supplier, is committed to the design, manufacture, production and sales of all kinds of slewing bearing. Product specifications are diverse and models are complete. The basic structure of slewing bearing slewing drive usually consists of worm, slewing bearing, shell, motor and other components. Because the core component adopts slewing bearing, it can bear axial force, radial force and tipping moment at the same time. There are many forms, but the structure is basically the same.
The double volleyball slewing bearing has three seat rings, and the steel balls and isolation blocks can be directly discharged into the upper and lower raceway. According to the force condition, the upper and lower two rows of steel balls with different diameters are arranged. This kind of open assembly is very convenient, the bearing angle of upper and lower arcs raceway is 90°, which can bear great axial force and tipping moment. When the radial force is greater than 0.1 times the axial force, the raceway must be specially designed. The axial and radial dimensions of the double diameter ball slewing bearing are large and the structure is tight. It is especially suitable for tower cranes, truck cranes and other loading and unloading machinery requiring medium diameter or above.
Double volleyball slewing bearing is widely used, construction machinery is the first application of slewing bearing is also the most widely used place, such as earthmoving machinery, excavators, stacker and retractor, grader, roller, rock drilling machinery, riding machine, etc.. Other concrete machinery, lifting machinery, engineering ships, aerial work platforms and so on. In addition to a variety of construction machinery, the application scope of light slewing bearing has been gradually expanded, at present, similar to port equipment, metallurgy equipment, wind power generation equipment, drilling platform and other equipment platforms have begun to use slewing bearing to replace the original bearing in a large range.
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