Analysis of the Application of SKF Bearings

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The materials used in bearings play a fundamental role in their performance and longevity. As a result, leading global bearing manufacturers, such as SKF, select the highest quality raw materials to ensure optimal functionality. The main components of a bearing—such as the inner and outer rings, rolling elements, and cage—each have specific requirements. The rings must exhibit high fatigue strength, hardness, wear resistance, and durability. They also need good dimensional stability, mechanical strength, and processability. Similarly, the rolling elements require high hardness and toughness, while the cage should be strong and lightweight. SKF employs advanced manufacturing techniques, including vacuum degassing, which ensures clean materials with low oxygen content and excellent quality. The materials used include low-carbon steel for stamping and forming, high-speed steel for heat-resistant applications, and stainless steel for corrosion resistance. In some cases, brass and stainless steel plates are also used depending on the application. Proper heat treatment significantly enhances the rolling fatigue life of the bearings. The cages are typically made from high-strength brass or carbon steel, and sometimes from synthetic resins. These materials provide the necessary structural integrity and flexibility for the bearing's operation. In terms of application, SKF bearings are widely used in various industries due to their reliability and performance. The bearing’s inner and outer rings, along with the rolling elements, are designed to withstand high contact pressures and sliding friction. For example, materials like AISI 52100 (USA), DIN 100Cr6 (Germany), and BS 535A99 (UK) are all similar types of bearing steel. When higher impact resistance is needed, chrome steel, chrome-molybdenum steel, or nickel-chrome-molybdenum steel may be used. Carburizing is often applied to create a hardened surface layer that improves the bearing's ability to withstand heavy loads. For special applications, additional properties such as heat resistance and corrosion resistance may be required. The most common material for bearing rings and rolling elements is high-carbon chromium bearing steel, such as SUJ2, which is standardized globally. For larger bearings, SUJ3 is often used, while most standard bearings utilize SUJ2 steel. Understanding the material selection and application of SKF bearings helps in choosing the right type for different operating conditions. Whether it's in industrial machinery, automotive systems, or aerospace equipment, SKF bearings are designed to deliver long-lasting performance and reliability. Related Bearing Knowledge: - JDB Bearings – New product rolling bearings used in mold applications and suffix codes for different brands. - Preloaded Rubber Roller Bearings for NSK – Process and application details. This article is linked to http:// Please cite the Bearing Network at http:// Previous: Common Bearing Wear and Its Countermeasures Next: Causes of Fault Temperature in Turbine Unit Bearings and Their Solutions

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