Difference between oscillating SKF bearing and general type

Difference Between Oscillating SKF Bearings and General Type Bearings

Source: China Bearing Network | Time: 2013-07-31

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Oscillating SKF bearings are specifically designed for applications where the load is not fixed, but instead moves or shifts. These bearings feature inner and outer rings, as well as rolling elements, made from vacuum-degassed bearing steel, which provides excellent fatigue resistance. The cage in oscillating SKF bearings is typically made of aluminum-iron-manganese bronze, offering high strength, good elasticity, and superior wear resistance. On the other hand, general type SKF bearings are more commonly used in standard applications. Their inner and outer rings, along with the rolling elements, are usually manufactured using conventional bearing steel. The cage in these bearings is often made of zinc brass, which has lower strength and less elasticity compared to the materials used in oscillating types. When choosing between an oscillating SKF bearing and a general type, it’s important to consider the type of load the bearing will experience: 1. **Fixed Load**: This occurs when the radial load vector remains stationary relative to the bearing raceway. In this case, the load does not rotate with the bearing. 2. **Rotating Load**: Here, the radial load vector rotates along with the raceway. This is common in applications where the bearing rotates continuously. 3. **Swing Load and Variable Load**: These loads are more complex. A swing load is one where the load is much smaller than a fixed load, and the direction of the load changes. Sometimes, a raceway may experience rotating load, sometimes fixed load, and at other times a swinging load. In most cases, the raceway of an oscillating SKF bearing is mounted on a shaft or housing with a certain amount of transitional or interference fit. When under load, the bearing ring should not move relative to the shaft or housing. This ensures stable performance and reduces the risk of premature failure. Whether you're working in industrial machinery, automotive systems, or any application that requires precision and reliability, understanding the differences between oscillating and general SKF bearings can help you make the best choice for your specific needs.
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