Excavators, also known as excavators or excavators, are earth-moving machines that excavate materials higher or lower than the bearing surface with buckets and load them into transport vehicles or unload them to the stockyard. The materials excavated by the excavator are mainly soil, coal, sand and soil and rock after pre-loosening. As the most important type of construction machinery in engineering construction, excavator is a special mechanical equipment widely used in mining and urban and rural construction.
Excavator turntable bearing
The large rotary table part of the excavator includes large rotary gear ring, reducer, center joint and other parts. Generally, when we open the cover plate next to the boom base, we can observe the lubrication in the big gear ring cavity and the wear of the gear ring. With the use of the machine, the dust ring of the bearing at the rotary center joint will age. In case of rain, the rain will seep into the large gear ring cavity along the leakage of the rotary center joint, causing water accumulation in the rotary table. This will greatly affect the service life of the rotary gear ring of your machine.
During the operation of the excavator, the grease in the cavity of the excavator is diluted by water, and the lubrication effect is not up to the standard, which will aggravate the wear of the gear ring. In addition, long-term immersion will cause the iron on the gear ring to peel off, and finally lead to abnormal rotation noise. The most serious is ring gear failure.
SKL cylindrical roller bearing without outer ring can be integrated into the planetary pinion with compact design, and has high load capacity, which helps to improve the functional efficiency of the planetary gearbox, and forms a good total cost effective solution. Cylindrical roller bearings are easy to install, minimizing the risk of incorrect installation, helping to improve production efficiency and overall reliability, optimize the performance of the entire planetary system, and increase the system life.