**Causes of FAG Bearing Failure** Home > Bearing Knowledge > The Cause of FAG Bearing Failure *Created on 2018/5/16* var cpro_id = "u3440131";

Causes of FAG Bearing Failure

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*Created on 2017/12/25* var cpro_id = 'u3171089';

FAG bearings are widely used in various industrial applications due to their high precision and durability. However, despite their robust design, they can still fail due to several factors. Understanding the root causes of FAG bearing failure is essential for maintaining equipment performance and extending service life. One of the main reasons for FAG bearing failure is the heat generated during the grinding process. When a grinding wheel comes into contact with the workpiece surface, a significant amount of energy is consumed, resulting in intense heat generation. This heat creates an extremely high temperature in the grinding zone, which can reach up to 1000–1500°C within a few milliseconds. Such extreme temperatures can lead to various microstructural changes in the workpiece surface, including oxidation, amorphous structure formation, tempering, and even cracking. The high temperature from grinding can cause the outer layer of the workpiece to oxidize. This thin oxide layer (about 20–30 nm thick) is formed by the reaction between oxygen in the air and the steel surface. The thickness of this oxide layer is directly related to the grinding conditions and serves as an important indicator of the quality of the grinding process. In addition, the extreme heat can melt the surface of the workpiece, leading to an amorphous arrangement of the material. As the molten metal cools rapidly, it forms a very thin, hard layer that may be removed during fine grinding. Although this layer has high hardness, it is not stable and can easily be worn away over time. High-temperature tempering is another critical factor. The heat from grinding can raise the temperature of the workpiece to levels higher than its normal tempering temperature, causing a reduction in hardness. This effect is more pronounced at greater depths beneath the surface, and the extent of softening depends on the intensity and duration of the heat exposure. To prevent FAG bearing failure, proper grinding techniques, adequate cooling, and regular maintenance are essential. Monitoring the condition of the bearings and addressing any signs of wear or damage early can significantly improve their lifespan and reliability. --- **Related Bearing Knowledge** - The Essential Analysis of NSK Bearing Noise - LYC Cylindrical Roller Bearing Functional Features - Angular Contact Ball Bearing Series Analysis - Selection Method of SKF Imported Bearings - Characteristics and Usefulness of Tapered Roller Bearings This article is linked to http:// Please indicate the bearing network http:// Previous: Bearing Box Floating Labyrinth Oil Seal Next: The Method of Extending the Life of NSK Bearings

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