What are the main failure modes of slew bearings

When the bearing is in use, due to its own quality and external conditions, its performance such as rotation accuracy, bearing capacity and anti-friction performance will change. When the performance index of a bearing is lower than the use requirements and affects normal work, This is called bearing damage or failure. The following is a brief introduction to the main failure modes of the bearing’s bearing by Hengguan Xiaobian.

The main failure modes of bearings

1. Metal corrosion occurs

If the bearing lacks lubrication during use, it will be oxidized and rusted by the air. And don’t soak in water. The material of the bearing is stainless steel. When taking the bearing, wash off the sweat on the hand, apply mineral oil before taking it, especially in summer and rainy season, pay special attention to rust prevention.

2. Excessive load or improper use

Bearings cannot exceed their own load during use. Just like if the car pulls too heavy goods, it is easy to cause damage to the bearing. Therefore, in general, the bearings of trucks are more easily damaged than cars, and the reason is that many of the parts are overwhelmed.

3. The bearing clearance is too small

For example, the front wheels of the car use inclined-push bearings, and the clearance of the bearings needs to be adjusted. If the clearance is too large, it will cause abnormal noise, deflection, or wheel shaking. If the clearance is too small, it will accelerate the wear of the bearing. For old bearings, it is necessary to check whether there are burrs, scratches or cracks on the surface of the ball (column), and whether the radial clearance and axial clearance are qualified; for new bearings, it is necessary to check the bearing type first. is it right or not.

4. Use inferior bearings

Some bearings are produced by some small factories whose production process cannot meet the requirements. The accuracy of the shaft or bearing box is not accurate, and the steel of the bearing is directly pressed for production without proper treatment. Therefore, the service life of the produced bearings is not long.

5. Improper installation operation

When the bearing is installed, it is necessary to follow the installation steps of the bearing, and it cannot be installed and disassembled with brute force. Whether the bearing is installed correctly is closely related to the service life of the bearing. When the bearing is installed, it is not allowed to press strongly or directly hit the bearing with a hammer. Try not to take it directly by hand. The sweat on the hand will also cause the bearing to rust.

6. Foreign body intrusion

When installing or using the bearing, you need to use special tools, and try to avoid things such as cloth or short fibers, so as to prevent fibers from entering the bearing and causing damage. If the installation personnel use the copper rod knock-in method when installing the bearing, the axial force of the bearing may be uneven, which will cause problems such as deformation of the cage, damage to the rolling elements, and enlargement of the clearance. During the knocking process, copper powder may fly into the bearing cage, making the bearing prone to failure.

The above are the main failure modes of bearings summarized by Hengguan Xiaobian for everyone. I believe that everyone will have a further understanding of the relevant content. We Hengguan Bearing produces various slewing bearings and slewing bearings, and supports non-standard customization. If you have related needs or questions about bearings, please feel free to call for consultation or leave a message. Looking forward to your call.