Classification of Radiator Bearings
Source: China Bearing Network | Time: 2013-05-04
Radiators rely on bearings to support the rotation of their cooling fans. In mechanical engineering, there are various types of bearings, but when it comes to radiators, three main types are commonly used: sleeve bearings with sliding friction, ball bearings that use rolling friction, and a hybrid approach combining both. Over time, new technologies have been introduced in the industry, such as magnetic bearings, water-cooled bearings, magnetic core bearings, and Laifu bearings. While these innovations improve the basic design, the fundamental operating principle remains largely the same. Most air-cooled radiators today use either oil-impregnated bearings or ball bearings. Oil-impregnated bearings, also known as sleeve bearings, operate using sliding friction. They are lubricated with oil, which helps reduce friction and noise during initial operation. These bearings are cost-effective to produce but tend to wear out faster over time. The oil seal is a critical component, and in many computer radiator designs, paper seals are often used instead of more advanced options. As a result, the lubricant can gradually evaporate, allowing dust to enter the bearing. This leads to decreased fan speed, increased noise, and in severe cases, excessive vibration due to bearing wear. In contrast, ball bearings use rolling friction rather than sliding. This method reduces surface contact and extends the lifespan of the bearing. However, the manufacturing process for ball bearings is more complex, leading to higher costs and potentially louder operation. Despite this, they are often preferred for their durability and performance in high-speed applications. Whether you're looking for a budget-friendly option or a long-lasting solution, understanding the differences between these bearing types can help you make an informed decision when selecting a radiator.
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