Slewing bearing is a special structural large bearing that can simultaneously withstand large axial loads, radial loads, and overturning moments, and integrates multiple functions such as support, rotation, transmission, and fixation. In general, the turntable bearings themselves are equipped with installation holes, lubricating oil, and sealing devices, which can meet the different needs of various types of hosts working under different working conditions; On the other hand, turntable bearings themselves have the characteristics of compact structure, convenient guidance for rotation, easy installation and maintenance, and are widely used in construction machinery.
The ability of excavators to rotate during operation is inseparable from the function of the rotary device, and the rotary support is an important part of the rotary device, connecting the chassis and the vehicle body, supporting the weight of the vehicle body and bearing the working load. At the same time, due to the extremely tight schedule of the construction site, excavators also need to avoid downtime, so the slewing bearing must have the characteristics of easy maintenance, long service life, and durability.
Tower cranes require a large working space and sufficient load-bearing capacity, and are commonly used in the horizontal and vertical transportation of materials such as cement and boards during building construction.
According to the characteristics of tower cranes,high-quality and customized slewing bearings ensure the convenience and reliability of the operation of the power arm slewing device of tower cranes.
The extension of the rotary arm of the concrete pump truck will inevitably bear greater overturning and stabilizing moments. In order to ensure the stability and precise control of the rotation angle of the concrete pump truck, the concrete pump truck mostly uses double volleyball rotary bearings.
When drilling with a rotary drilling rig under different working conditions, in order to ensure smooth operation, the rotary support must withstand a large overturning moment. Based on this characteristic, the majority of double row four point contact ball type rotary bearings have been selected
High altitude work platforms are mainly used to transport personnel to difficult to reach positions. To ensure safety, a fully rotating rotating mechanism is usually used, and the forward and reverse directions are selected according to the operation needs.
Ensuring the high performance of every high-altitude work platform and the safety of every worker is the most important.
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