Working principle of copper-based powder metallurgy oil-impregnated bearings

               
Update: 21-05-2021
               
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Powder metallurgy oil-impregnated bearings are made of […]

Powder metallurgy oil-impregnated bearings are made of copper powder or iron powder as raw materials, processed by mold pressing, high temperature sintering, and vacuum oil immersion. Products are widely used in household appliances, power tools, textile machinery, chemical machinery, automobile industry, etc. Copper-based powder metallurgy oil-impregnated bearings use the porosity of the sintered body to impregnate 10%-40% (volume fraction) of lubricating oil and use it under self-lubricating conditions. During operation, the temperature of the bearing rises. Because the expansion coefficient of oil is larger than that of metal, it automatically enters the sliding surface to lubricate the bearing. When it stops working, the oil is sucked back into the pores as the temperature drops.

Technical parameters of FU-1 copper-based powder metallurgy oil-impregnated bearings:
Maximum bearing pressure: 35 N/mm2
Maximum temperature: -80~+160 degrees Celsius
Maximum sliding speed: 2.5 m/s
Alloy material: CuSn6-6-3
Maximum PV value: 2.45 N/mm2 .m/s

FU-1 copper-based powder metallurgy oil-impregnated bearing processing type: can be processed into straight bushings, flange flanged bushings, gaskets, sliders, non-standard shaped parts, etc., support non-standard products customized.

Application characteristics of FU-1 copper-based powder metallurgy oil-impregnated bearings:
FU-1 copper-based oil-impregnated bearing is made of tin bronze powder as raw material, pressed by a mold, sintered at high temperature, and shaped. Its matrix has fine, uniformly distributed pores, which form an oily state after being vacuum impregnated with lubricating oil. The product has the characteristics of short-term no lubrication, low cost of use, and changeable inner and outer diameters. It is suitable for use in places with medium speed and low load. Products have been widely used in household motors, power tools, textile machinery, chemical machinery, automotive industry and office equipment.

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