What factors can cause damage to accessory bearings?

Jan 20th,2025 164 Views

Bearings are a vital component of loader accessories. Once they are damaged during daily use, their manifestations are diverse, and the causes of damage are also different. Next, we will introduce several common damage conditions, causes and corresponding solutions for loader accessories bearings in detail.

1. Peeling

1. Damage phenomenon: The running surface of the bearing peels off, and the surface after peeling shows obvious unevenness.

2. Causes:

- The actual load exceeds the bearing's bearing range, or the use method is inappropriate.

- There are problems during the installation process, and the operation is not carried out in accordance with the correct methods and specifications.

- The manufacturing accuracy of the shaft or bearing box does not meet the requirements.

- The clearance of the bearing is set too small, affecting its normal operation.

- Foreign matter has entered the inside of the bearing and damaged the running surface.

- The bearing rusts, reducing its performance.

- Abnormally high temperature causes the hardness of the bearing to decrease, which causes peeling.

3. Solutions:

- Re-evaluate and study the use conditions of the bearing to ensure that it works within a reasonable load range.

- Reselect the appropriate bearing model according to actual needs.

- Reconsider and adjust the bearing clearance to reach the appropriate value.

- Carefully check the machining accuracy of the shaft and bearing box to ensure that it meets the standards.

- Optimize the structural design around the bearing to improve its stability.

- Check whether the operation method during installation is correct to avoid damage caused by improper installation.

- Check the quality and lubrication method of the lubricant to ensure that it can meet the lubrication needs of the bearing.

2. Burns

1. Damage phenomenon: The bearing becomes hot during operation, and the surface color changes. In severe cases, the bearing cannot rotate normally.

2. Causes:

- The bearing clearance is too small, especially in the deformed part, which further aggravates friction and heating.

- Insufficient lubrication, or the lubricant used does not meet the requirements of the bearing.

- The load is too large and the preload is beyond the normal range.

- The roller deflects during operation, resulting in uneven force.

3. Solutions:

- Reasonably set the bearing clearance and increase the clearance appropriately if necessary to reduce friction.

- Check whether the type of lubricant used is correct and ensure that the lubricant injection volume is sufficient.

- Check the actual use conditions of the bearing to avoid overload operation.

- Take measures to prevent positioning errors during the installation and use of the bearing.

- Check the structural design around the bearing to ensure that the performance of the bearing will not be affected by heat during operation.

- Improve the assembly method of the bearing to ensure that the roller is installed accurately and avoid deflection.

III. Crack defects

1. Damage phenomenon: Notches appear in some areas of the bearing, accompanied by cracks.

2. Causes:

- Excessive impact load causes local stress concentration in the bearing.

- The interference is set too large, causing damage to the bearing.

- The bearing has peeled off over a large area, which in turn causes cracks.

- Cracks caused by friction may be related to factors such as poor lubrication.

- The accuracy of the installation side does not meet the requirements, and the fillet at the corner is too large, which affects the force distribution of the bearing.

- There are improper operations during use, such as hitting the bearing with a copper hammer, or large foreign objects are stuck inside the bearing.

3. Solutions:

- Carry out a comprehensive inspection of the use conditions of the bearing to ensure that it operates within a safe load range.

- Reasonably set the interference and check the material of the bearing to ensure that its quality meets the requirements.

- Improve the installation and use methods of the bearing to avoid damage caused by improper operation.

- Take measures to prevent the occurrence of friction cracks, such as improving lubrication conditions and regularly checking the quality of lubricants.

- Optimize the structural design around the bearing to improve its impact resistance.

IV. Rust and corrosion

1. Damage phenomenon: Partial or complete rust will appear on the surface of the bearing, and sometimes there will be rust marks in the shape of the tooth pitch of the moving body.

2. Causes:

- The storage state of the bearing is not good, and no effective protective measures have been taken.

- Improper packaging methods cannot provide good protection.

- Insufficient use of rust inhibitors cannot effectively prevent rust.

- Corrosive substances such as moisture and acid solutions have invaded the inside of the bearing.

- Direct contact with the bearing with your hands, sweat and other substances on your hands may cause the bearing to rust.

3. Solutions:

- Strengthen the sealing performance of the bearing to prevent the intrusion of moisture, corrosive substances, etc.

- Check the lubricating oil regularly to ensure that it has good lubrication and anti-rust properties.

- When using the bearing, pay attention to the operating specifications and avoid direct contact with your hands. If you need to touch it, you should wear gloves.

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