The automobile crane slewing bearing is one of the key components used in automobile cranes. Its main function is to support the weight of the entire boom and achieve smooth rotation of the boom. This kind of bearing is usually designed with high load-bearing capacity and precise rotation accuracy to meet the needs of different working conditions.

First of all, the structure of automobile crane slewing bearing usually includes outer ring, inner ring, rolling elements and seals. The outer ring and inner ring are made of high-quality 42CrMo or 50Mn material, and the rolling elements are made of GCr15 (100Cr6) material. The outer ring is fixedly connected to the lower frame of the truck crane, and the inner ring is connected to the rotating body such as the boom and other structures. Friction between rolling elements is reduced by rolling rather than sliding, which helps reduce energy consumption and increase bearing life. In addition, high-quality seals prevent dust, water and other impurities from entering the inside of the bearing, thus protecting the bearing from contamination.

Since the truck crane rotates frequently during operation, the operating efficiency and reliability of the bearings are particularly important. Depending on the load it bears, the slewing bearing of the automobile crane is usually a single-row ball with external teeth or a double-row ball with external teeth structure. It not only has high mechanical efficiency, but also reduces maintenance costs and extends the service life of the equipment.

Please click on the car crane slewing bearing to view the relevant parameters, or contact LYRA directly.