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What are the precautions for using slewing bearing

Views:106     Author:JOC MACHINERY CO., LTD.     Publish Time: 28-10-2021      Origin:https://www.jocmachinery.com/

In recreational facilities, ports and harbors, heavy machinery various industries have a wide range of applications of slewing bearings, but in the use of slewing bearings, some matters need our attention, otherwise, it is easy to cause damage, do you know what are the precautions for the use of slewing bearings?


Here is the content list:

Pay attention to regular inspection of slewing bearings

Parts connected to slewing bearings

Clear the debris regularly


 Pay attention to regular inspection of slewing bearings

Slewing bearings in use should pay attention to the changes in noise and changes in slewing resistance torque, slewing bearings in the process of use if abnormal phenomenon should be disassembled and inspected. Slewing bearing especially tower crane slewing bearing use process due to its quality and external conditions, its bearing, rotational accuracy, and friction reduction energy performance will change. When the bearing performance index is lower than the use of the requirements and can not work, it is called bearing damage or failure. Once the turntable bearing damage and other unexpected circumstances, there will be its machine, equipment stop, function by damage, and other abnormal phenomena.


Parts connected to slewing bearings

The bolts and nuts connecting the slewing bearings are all high-strength bolts and nuts; double nuts are used to tighten and prevent loosening. Slewing bearing and tower crane slewing bearing tightening nut should be in the bolt's thread and nut surface coated with lubricant and should use the torque wrench in the circumferential direction symmetrically and evenly tightened several times. Each bolt-on the pre-tightening torque should be roughly uniform. Slewing bearing to ensure the reliability of the bolt work, to avoid the lack of bolt preload, slewing bearing should check the bolt preload torque. Thereafter, the preload torque should be checked every 1000 hours of work.



Clear the debris regularly

Slewing bearing in the bolt finished tightening before, should be gear mesh check, its mesh condition should be in line with the requirements of gear accuracy: that is, the gear vice in a slight break after the operation of the tooth surface distribution of contact spots in the direction of the height of the gear teeth is not less than 25%, in the direction of the length of the gear teeth is not less than 30%. Slewing bearing tooth surface work 10 shifts should be cleared of secondary debris and re-applied grease.


Only when used correctly, the possibility of damage to the slewing bearing will be reduced and we will feel more at ease when using it. Damage to slewing bearings is more complicated than damage to general mechanical parts. Damage to slewing bearings is characterized by a variety of manifestations and complex causes. Therefore we have to check regularly and take corresponding measures. The damage of bearings is partly caused by improper use, improper installation, poor lubrication, poor sealing, etc. JOC MACHINERY CO., LTD. has many tests of slewing bearing, and the quality qualification rate is guaranteed. If you need slewing bearing, you can consider our cost-effective products. JOC MACHINERY CO., LTD. materials are non-toxic and tasteless, perfect after-sales service, you can have no worries.



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