How to ensure that the slewing ring can be installed successfully

2020-07-21

Now that you have specified a suitable slewing ring bearing for the equipment, it is time to enter the installation phase. Please consider the following four factors to ensure a successful installation.

1. Deformation of the mounting surface

There are many reasons that can cause the appearance of the installation to be deformed. Common examples include excess metal between the bearing and the mounting surface to improper gaskets. However, regardless of the cause of the deformation, the result is that faulty installation affects the integrity of the product. Deformation of the installation surface will cause the following problems:

Load concentration in the bearing

Error readings during bolt tensioning

Bolt fatigue

Total bearing failure

2. Correct sealing and smoothness

Slip ring bearings should be sealed to avoid any factors that may negatively affect bearing performance, such as debris and corrosive elements. The type of seal you choose to specify will vary depending on the use, so be sure to consult a bearing expert during this process. When specifying a slewing bearing, smoothness and no matter how smooth it is should also be given top priority. Generally, the bearings will be smoothed in advance. Once they are installed in the final product, they must be replenished in time. For some products, this will be daily work, while for other products, only more smoothness is required per 100 hours of operation. These maintenance procedures should be clearly listed in any manuals related to the final product.

3. Bearing storage

Short-term storage is usually considered when bearings leave the factory. If you plan to accept the bearings and leave them on the shelf for a long time, please ensure that the bearings are smooth before installation. Once delivered to you and your team, you should also pay attention to how the bearings are handled/stored. If not handled properly, the installation surface or gear teeth may be damaged. Dust and other contaminants will also accumulate on the slewing ring, causing installation difficulties.

4. The correct installation procedure

Although one factor seems obvious, it is often negligent to follow the correct installation process. Mainly, the load plug and hardness gap of the bearing should be located in the smaller load area of ​​the product. If these aspects are placed in a heavy load area, premature failures may occur. You should also look at the bearing races during this process. After tightening the bolts, the bearing race should be round. But it is not unimportant that after the installation is completed, you need to check the final bearing torque and gear clearance. If your bearing has installation problems, the bearing torque after installation will be very different.