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The swing bearing, also known as a slewing ring bearing, is a rotational bearing component typically used in heavy machinery such as excavators. This bearing facilitates the rotation of the upper part of the excavator independent from the lower part.
It is a large diameter bearing that can handle different loads (axial, radial and moment loads) simultaneously. The swing bearing is an essential part of the excavator as it is responsible for the precise control and positioning of the excavator's boom and bucket, allowing the machine to dig, lift, and move materials efficiently.
It is designed to be robust and durable, as it needs to withstand the heavy loads and harsh working conditions of construction, mining, and other heavy-duty applications. Regular maintenance and inspection are crucial to prevent bearing failure and extend the service life of the swing bearing.
The single row four point contact ball slewing bearing is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.It can be used for slewing conveyer, welding manipulator, light & medium duty crane, excavator, and other construction machinery.
1. n1 is the number of lubricating holes.Oil cup M10×1JB/T7940.1~JB/T7940.2.The Oil nipple's location can be changed according to the user's application.2. n-φcan be changed to tapped hole,the diameter of tapped hole is M,depth is 2M.3. The tangential tooth force in the form is the maximum tooth force,the nominal tangential tooth force is 1/2 of the max one.4. "K" is addendum reduction coefficient.
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