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Powder metallurgy oil-impregnated bearings, also known as oil-bearing bearings, are a type of porous alloy component that is saturated with lubricating oil within its micro-pores. These bearings are designed to provide self-lubrication, making them ideal for applications where regular oiling is difficult or impractical.
When the shaft rotates, friction between the shaft and the bearing causes an increase in temperature, which triggers a pumping action. This process forces the lubricating oil to be released from the pores and spread over the contact surfaces, ensuring continuous lubrication. When the rotation stops, the oil naturally reabsorbs into the bearing’s structure, minimizing oil loss. As a result, these bearings require very little additional lubricant, making them highly efficient and suitable for environments where contamination by lubricants must be avoided.
Oil-impregnated bearings are widely used across various industries, including motor manufacturing, industrial equipment, home appliances, digital devices, office machinery, power tools, textile machines, and packaging systems. Their durability, low maintenance, and ability to function without constant external lubrication make them a popular choice in many mechanical systems.
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Powder metallurgy oil bearing
**Powder Metallurgy Oil Bearing**
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Source: China Bearing Network | Time: 2013-10-21