一、 As an important component of mechanical equipment, bearings do need to pay attention to some key points.
1. Temperature control: Bearings should operate within a suitable temperature range. High temperatures can cause lubricant failure and reduce bearing life, while low temperatures may cause excessive bearing shrinkage.
2. Lubrication: Correct lubrication is the key to maintaining the normal operation of bearings. Use appropriate lubricants, such as liquid or solid lubricants, and ensure that lubricants are regularly replaced and replenished.
3. Clean environment: Try to avoid bearing contact with dust, impurities, and other pollutants. Maintaining a clean environment around bearings can reduce the occurrence of wear and failure.
4. Load control: Reasonably control the load of the bearing to avoid overload or light working conditions, to ensure the lifespan and stability of the bearing.
5. Regular maintenance: Develop a reasonable maintenance plan based on usage conditions and work requirements. Regularly inspect and maintain bearings, including lubricant replacement, cleaning, tightening screws, etc., to ensure the normal operation of the bearings.
6. Correct installation: The correct installation of bearings is very important. Ensure the matching between the bearing and the seat hole and install it correctly to avoid damage caused by poor installation.
7. Vibration and noise monitoring: Through vibration and noise monitoring technology, potential problems can be identified in a timely manner and appropriate measures can be taken to solve them, in order to avoid bearing failures during operation.
2、 Mechanical damage to bearings
Bearings are one of the common components in mechanical devices, and they are also susceptible to various mechanical damages. The following are some common types of mechanical damage to bearings:
1. Wear: Wear is one of the common types of damage to bearings. Due to friction and erosion, the bearing surface gradually becomes smooth, leading to bearing clearance and a decrease in performance.
2. Fatigue: Bearings are prone to fatigue damage under long-term cyclic loading. Under periodic stress loading, the bearing material will form small cracks, ultimately leading to fracture.
3. Corrosion: Corrosion is bearing damage caused by the chemical action of the medium. Corrosion can occur through pollutants in lubricants, acidic or alkaline media, etc. Corrosion can lead to oxidation, etching, and material loss on the bearing surface.
4. Catalyst contamination: The lubricant inside the bearing is affected by pollutants, which may lead to corrosion, wear, and increased friction. Pollutants can be solid particles, moisture, metal shavings, or other impurities.
5. Temperature damage: If the operating temperature of the bearing exceeds its rated temperature range, it may cause damage. Excessive temperature can cause lubricant failure and material embrittlement, while excessively low temperature may lead to lubricant solidification and material shrinkage.
6. Vibration and shock: Excessive vibration or shock loads may cause bearing damage. Vibration and impact can cause looseness, displacement, or material damage to bearings, thereby affecting their operational performance.
To avoid mechanical damage to bearings, the following precautions should be taken:
-Choose appropriate bearing types and specifications to adapt to specific working environments and load requirements.
-Pay attention to the correct assembly method and process requirements when installing bearings.
-Regularly inspect and maintain bearings, including lubricant replacement and cleaning, to ensure their normal operation.
-Control bearing work-Control the working temperature and vibration level of the bearing to avoid exceeding its rated range.
-Avoid overloading and shock loads, ensuring that the bearings are in proper working condition.
Through reasonable use and maintenance, the service life of bearings can be extended and their good performance can be maintained.
三、 Bearing cavitation
Bearing corrosion refers to the phenomenon of oxidation, corrosion, or damage to the internal or external surfaces of a bearing. Cavitation corrosion may affect the operational performance of bearings and even lead to bearing failure. The following are some common types of bearing pitting:
1. Loose corrosion: This type of corrosion usually occurs on the contact surface between the inner ring and journal of the bearing, as well as between the outer ring and the seat hole. Due to small micro movements, surface oxidation and corrosion can occur, forming small pores. The characteristics of loose pitting are local color changes and small pores.
2. Electrochemical corrosion: Electrochemical corrosion may be caused by the corrosiveness of lubricants, electrochemical reactions, or potential differences between different materials. It can cause pits and pitting on the bearing surface, and even form holes. This type of pitting is usually associated with a humid environment, the presence of electrolytes, and current flow.
3. Acid corrosion: Bearings are prone to corrosion when exposed to acidic media. Acidic substances can corrode the surface of bearings, causing surface pits and damage. Acid corrosion can be caused by acidic substances in the working medium or by external substances.
4. Water corrosion: Bearings are prone to water corrosion when exposed to humid environments, especially in water. Moisture can cause oxidation and corrosion, forming pitting or linear pitting on the bearing surface.
Bearing pitting is caused by factors such as external environment, lubrication failure, chemical reactions, etc. To reduce the occurrence of bearing pitting, the following preventive measures can be taken:
-Use anti-corrosion lubricants and replace them regularly.
-Use waterproof bearings or take protective measures in damp environments.
-Avoid bearing contact with acidic media, especially in chemical and corrosive environments.
-Ensure that the bearing matches the matching parts reasonably and correctly installed, and use sufficient tightening force.
-Regularly maintain and inspect bearings to promptly identify and address corrosion issues.
-Control the working temperature, moisture, and potential difference of the bearing to reduce the occurrence of electrochemical reactions.
By taking the above measures, the risk of bearing cavitation can be reduced, and the lifespan and stability of the bearing can be extended.
四、 Fatigue pitting
Bearing fatigue pitting is a common type of bearing damage that typically occurs under repeated cyclic loads. Fatigue pitting can cause local peeling or pitting on the bearing surface, which may lead to bearing failure. Here are some key points about bearing fatigue pitting:
1. Cyclic load: The bearing bears cyclic load during operation, such as periodic stress during rotational motion. These stress loads can cause damage to the bearing material after a certain amount of cyclic loading.
2. Pulsating load: When the bearing is subjected to periodic pulsating loads, it is easy to cause fatigue pitting. Pulsating loads may be caused by imbalance, vibration, vibration, or other periodic loads.
3. Cyclic stress: Bearings are prone to fatigue pitting under cyclic loads, especially within the range of cyclic stress higher than their load-bearing capacity. Cyclic stress can form small cracks inside the material, and as the number of cycles increases, the cracks gradually expand and cause local peeling.
4. Surface damage: Unevenness, contamination, dents, or other potential sources of fatigue pitting on the bearing surface. These surfaces can lead to the formation of small cracks and accelerate their propagation during load cycles.
5. Fatigue life: The fatigue life of a bearing refers to the number of cycles that the bearing can withstand within a certain load range. If the load exceeds the fatigue life of the bearing, fatigue pitting will intensify and lead to bearing failure.
To reduce the occurrence of bearing fatigue and pitting, the following preventive measures can be taken:
-Select appropriate bearing types and specifications to adapt to specific working conditions and load requirements.
-Control the working load of the bearing to avoid exceeding its rated load range.
-Reduce the impact of pulsating loads, such as through balancing, shock absorption measures, and vibration control.
-Ensure that the bearing surface is flat and clean, reducing the presence of surface and pollutants.
-Regularly inspect the condition of bearings, detect minor damage, and take timely measures.
By taking the above measures, the service life of bearings can be extended, the risk of fatigue pitting can be reduced, and the reliability and performance of bearings can be ensured.
五、 Anding Yitai Contact Information:
Established in 2013, Shanghai Anding Yitai is a professional ceramic bearing manufacturer specializing in sales, technology, and production. Located in the beautiful city of Shanghai, we focus on producing only one product, which is ceramic bearings, magnetic levitation protection bearings, and magnetic levitation bearings.
Technical Engineer: 136-2180-8094
