**Detailed Life and Load of SKF Bearings** Home > Bearing Knowledge > Details of Extra Life and Load of SKF Bearings *Created on 2018/5/16* var cpro_id = "u3440131";

Detailed Life and Load of SKF Bearings

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/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

The life of a bearing is significantly influenced by the load it experiences. SKF bearings, like all rolling bearings, have a certain number of revolutions or operating hours before they start showing signs of pitting corrosion. However, due to the precision in manufacturing, slight variations in material uniformity can lead to differences in performance, even among bearings of the same type, size, and batch. For example, if the calculated life of a bearing is set at 1 unit, some may last up to 4 units, while others might only reach 0.1–0.2 units. This means the ratio between the longest and shortest life can be as high as 20 to 40 times. Therefore, when selecting a bearing, it's important to consider not just the theoretical life but also the reliability under real-world conditions. The basic rated life refers to the number of revolutions or hours that 90% of a group of identical bearings can operate without failure under the same conditions. This is known as the L10 life, which is a standard used in the industry to define the expected durability of a bearing. The fundamental dynamic load rating (C) represents the maximum load that a bearing can withstand for one million revolutions with 90% reliability. In other words, when a bearing is subjected to this load, it should last for one million revolutions without pitting or failure. The higher the C value, the greater the load capacity of the bearing. For different types of bearings: - **Radial bearings** are designed to handle pure radial loads. - **Thrust ball bearings** are meant for pure axial loads. - **Radial thrust bearings** are suitable for combined radial and axial loads, where the primary load is radial. Understanding these factors is essential for engineers and maintenance professionals who need to ensure optimal performance and longevity of their machinery. Proper selection of bearings based on load and life requirements can significantly reduce downtime and maintenance costs.

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**Recommended Reading:** - High-speed thrust angular contact ball bearings - Installation process of cylindrical roller bearings - Characteristics and applications of cylindrical roller bearings This article is sourced from China Bearing Network. Please visit [China Bearing Network](http://www.chinabearing.net) for more information. Previous: Application and Storage of SKF Bearings in Shenzhen Next: Rolling Bearing Code Numbering System

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