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slewing bearing grease analysis

Views:6     Author:Kevin     Publish Time: 2018-12-26      Origin:Site

As a very important spare part in mechanical equipment, slewing bearing is the key to the normal operation of many mechanical equipment, and it is also an indispensable part in the operation of many mechanical equipment. It can be seen that the importance of the slewing bearing is self-evident. In addition, in order to ensure the normal use of the slewing bearing, we often need to apply a layer of lubricating oil on the surface of the slewing bearing. Applying lubricant to the slewing ring can effectively reduce internal friction. Applying lubricant to both the inner ferrule and the rolling element can help reduce metal contact at the mutual contact, which can help reduce various The friction reduces the wear and tear caused by the product during use, and brings more effects.

slewing bearing grease

Applying lubricant to the slewing ring can extend the life of the product and effectively avoid wear and tear in all situations. However, after applying the lubricating oil, it can help the contact surface to bring about a good lubricating effect, and can also prolong the service life and improve the use efficiency of the product during the rotating process.

The slewing bearing is rolled to the inside with a small amount of grease. The activation allows the user to refill the new grease according to different working conditions.The slewing bearing raceway should be filled with grease regularly. Generally, the ball support is refueled once every 100 hours of operation, and the roller type support is refueled every 50 hours. The special working environment, such as tropical, humid, dusty, large temperature difference and continuous operation, should shorten the lubrication cycle. New grease must be added before and after the machine has been shut down for a long time. The lubrication must be filled with grease in each race until it seeps out from the seal. When filling grease, slowly turn the slewing ring to make the grease fill evenly.

Lubrication is especially important in the maintenance of slewing bearings. Proper lubrication and periodic grease maintenance have a decisive influence on the raceway and tooth life of the bearing. When the slewing bearing is shipped from the factory, a small amount of extreme pressure lithium base grease is generally added to the raceway. When it is activated, the user should refill the new grease according to different working conditions.The slewing bearing raceway should be filled with grease regularly. Generally, the ball type slewing bearing is filled once every 100 hours of operation, and the roller type slewing ring is filled once every 50 hours of operation. In the case of special working conditions, such as high temperature, high humidity, high dust, large temperature changes and continuous operation, the lubrication cycle should be shortened. New grease must be added before and after the machine is stopped for a long time. The lubrication must be filled with grease in each race until it seeps out of the seal. When filling grease, slowly turn the slewing ring to make the grease fill evenly.Toothed slewing bearings should always remove debris from the tooth surface and apply the corresponding grease in time. Depending on the operating conditions, the user can also choose the best grease. After the slewing bearing is operated for the first time for 100 hours, the bolt pre-tightening force needs to be checked. After every 500 hours of operation, the bolt must be kept with sufficient pre-tightening force.

Filling grease is the most important part of daily maintenance of slewing bearing. The filling cycle depends on its working environment and strength. It is filled with incorrect, quality batch number non-conforming, non-standard grease, along with the temperature of the raceway surface. When it is raised, the grease is easily thinned. When the driving gear of the swing motor is pushed to the upper section of the ring gear during the meshing process, it will flow into the bearing cavity through the inner oil seal, and finally the grease will flow out from the outer oil seal, causing dry grinding. Therefore, the lubrication effect of the raceway and the driving gear is greatly reduced, and the service life of the slewing bearing is shortened. The correct slewing bearing grease selection is shown in the table below:

slewing bearing frease selection


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