Maintenance method of slewing bearing after operation

How to maintain the slewing bearing after operation, let's introduce several kinds of slewing bearing maintenance.

In large construction machinery, the slewing bearing has a very important effect. In order to extend the service life of the slewing bearing, it is necessary to maintain the slewing bearing. Especially after the operation, the maintenance of slewing bearing is more important. So, how to maintain the slewing bearing after operation? In the maintenance of slewing bearing, most customers have misunderstandings. They think that the smooth oil of slewing bearing is the same as that of big and small arms, so they should be altered every day. In fact, this method is wrong. If the smooth period is too short, the bearing will have too much smooth oil, and then the dust ring will break and leak out. If there is leakage, there will also be impurities into the bearing, which will harm the normal operation of the bearing.

Generally, the smooth distance of slewing bearing is about every 250 hours. The smooth period can be adjusted according to different operation intensity, and it is suitable to paint once a week. When the slewing bearing leaves the factory, the No.2 extreme pressure lithium base grease coated on the slewing bearing should be filled with new grease from the beginning according to different operating conditions. The slewing bearing raceway should be filled with grease regularly. Generally, ball bearing should be oiled every 100 hours and roller bearing should be oiled every 50 hours. Under special conditions, such as in the tropics, with high humidity, dust and large temperature difference, it is necessary to shorten the smoothing cycle when the machine is working continuously. It is also necessary to add new grease before and after the machine stops working for a long time. It is necessary to fill the raceway with smooth grease every time until the sealing belt is removed When injecting smooth grease, the slewing bearing should be gradually turned to make the smooth grease fill evenly. The impurities on the tooth surface should be removed frequently. The smooth grease can be selected and added according to its own conditions. When the transportation is 100 hours, the bolt preload should be checked in time, and then every rotation should be carried out Check every 500 hours of operation to ensure that the pre tightening force is satisfied. Do not connect water only to flush the slewing ring, so as to prevent water from entering the raceway and prevent hard objects from entering the gear meshing area. Check the sealing integrity regularly and reset it in time if it falls off.

For more information, consult slewing bearing manufacturer for details.