The cooperation of FAG imported bearings in the production of peeling damage and countermeasures
Cooperation of FAG Imported Bearings in the Production of Peeling Damage and Countermeasures
FAG imported bearings are widely used in various industrial applications due to their high quality and reliability. However, improper selection or usage can lead to premature failure, such as peeling damage on the raceway or rolling surfaces. This type of damage is typically caused by rolling fatigue, resulting in a fish-scale-like appearance on the bearing surfaces. **Damage Conditions:** When a bearing is subjected to load while rotating, the raceway surface or the rolling surface of the inner and outer rings may show signs of peeling. This usually occurs due to excessive load, poor equipment alignment, foreign matter intrusion, water ingress, insufficient lubrication, or incorrect clearance settings. Additionally, issues like rust, corrosion, scratches, or deformation of the outer ring can also contribute to this kind of damage. **Causes of Peeling Damage:** - Excessive load on the bearing - Poor equipment alignment (non-linear torque) - Foreign particles entering the bearing - Water contamination - Inappropriate lubricant viscosity - Improper bearing clearance - Low accuracy of the bearing housing or shaft - Large axial deflection - Surface imperfections such as rust or scratches **Countermeasures to Prevent Peeling Damage:** - Re-evaluate the load applied to the bearing and ensure it matches the bearing’s capacity. - Improve sealing mechanisms to prevent dust and moisture from entering. - Use the correct lubricant with appropriate viscosity and apply it properly. - Check the dimensional accuracy of the shaft and bearing housing. - Ensure proper clearance and fit between the bearing and its housing. - Select the right type of bearing based on the direction and nature of the load. According to experts, when a FAG bearing is subjected to a rotating or non-directional load, the corresponding ring should be in a tight (interference) fit. For stationary loads, a transition or clearance fit may be more suitable. If the bearing is under heavy load or subject to shock and vibration, a higher interference fit is required. In cases where the shaft is hollow, or the bearing housing is made of thin-walled material, plastic, or aluminum, the interference should be increased accordingly. For high-speed and high-precision applications, it is essential to choose bearings that meet the required standards and ensure the shaft and housing have good dimensional accuracy. Excessive interference can affect the shape of the bearing rings, leading to reduced rotational accuracy. Non-separable bearings, such as deep groove ball bearings, are typically installed with a static fit on both the inner and outer rings. However, this can make disassembly difficult. It is often recommended to use a fit on only one of the rings for easier maintenance.
**Related Bearing Knowledge:** - The method of dismantling and disassembling motor bearing caps - Common methods for bearing removal, repair, and inspection - Characteristics of hybrid ceramic bearings and the application of independently developed magnetic bearings in Fuyang This article was originally published on China Bearing Network. Link: http:// Please cite the source: China Bearing Network – http:// Previous Article: The meaning of KOYO bearing front code names Next Article: Analysis of the standard device method for SKF imported bearings
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