The reason for NSK bearing heating and its cleaning method

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The Causes of NSK Bearing Heating and Effective Cleaning Methods

Source: Bearing Network | Date: March 29, 2014
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In machine tools, especially the main shafts, NSK bearings or plain bearings are commonly used to ensure smooth rotation at high speeds. However, in some cases, excessive heat can be generated. If this issue is not addressed promptly, it may lead to overheating, thermal deformation of parts, and misalignment between the spindle and tailstock. This not only affects the accuracy of the machine but can also cause bearing damage. So, what are the common causes of NSK bearing heating, and how can it be cleaned effectively? Let's explore these issues in detail: 1. **Low Bearing Accuracy**: Ensure that the bearing meets the required precision level for the application. 2. **Misalignment of Spindle or Housing**: Correct any twisting or misalignment in the spindle or housing. 3. **Belt Too Tight**: Adjust the belt tension to an appropriate level. 4. **Improper Lubrication**: Use high-quality lubricants from reputable brands and maintain cleanliness. 5. **Poor Installation Quality**: Improve installation techniques to ensure proper assembly. 6. **Inner Race Running**: Replace the bearing and worn components if necessary. 7. **Excessive Axial Force**: Adjust the gap of the sealing ring (typically 0.2–0.3 mm) and balance the impeller properly. 8. **Damaged Bearings**: Replace damaged bearings immediately to prevent further issues. Regular maintenance and proper handling are essential to avoid overheating and extend the life of NSK bearings. By identifying the root causes and implementing the correct cleaning and maintenance procedures, you can significantly improve performance and reduce downtime.
Related Bearing Knowledge: - Common terms and definitions for rolling bearing components - Analysis of double-row tapered roller bearings: layout and functional characteristics - The importance of INA bearings and their stability in operation - Understanding the difference between oscillating bearings and normal bearings This article is sourced from China Bearing Network. For more information, visit [China Bearing Network](http://www.chinabearing.net).

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Piston Seals

Piston seal is a kind of seal used to seal between piston and cylinder, usually used in hydraulic system and Pressure system. The piston seal can prevent liquid and gas leakage, and also prevent external impurities from entering the system, thus maintaining the normal operation of the system.


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In hydraulic systems, piston seals are typically used to seal hydraulic cylinders and pumps. The piston seals in hydraulic systems need to have characteristics such as high temperature resistance, corrosion resistance, and wear resistance to ensure long-term stable operation of the system. In Pressure system, piston seals are usually used to seal cylinders and pumps. The piston seals in the Pressure system need to be resistant to high pressure, low temperature, wear and other characteristics to ensure the normal operation of the system.


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