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The working principle and characteristics of oil-bearing

From:本站   Time:2017-12-21 17:11:32    Hits:   
Oil bearing, also known as porous bearing (Porous Bearing). It is a metal powder as the main raw material, produced by powder metallurgy sintered body, which has always been porous, but also in the manufacturing process can be more free to adjust the number, size, shape and distribution of pores and so on.
 
Oil-bearing features:
 
1, the use of sliding friction sleeve bearings, use of lubricants as a lubricant and DRA
2, beginning with Operation when using low noise, low manufacturing costs, but the wear and tear is serious, there is a big gap between life than ball bearings;
3, when over time, due to the seals, the oil will gradually be volatile, and the dust will enter the bearings, causing the device speed slows down, the noise increases and other issues.
 
Oil-bearing works
 
The porous nature of the material or the use of oil-bearing parent and the characteristics of lubricating oil in the bearing before installation, so that oil infiltration bearing materials, during the bearing can not add or longer without oil.
 
Oil bearing in the non-operation state, lubricant filled pore, during operation, the shaft rotation due to friction and heat, thermal expansion bush make pores decreases, so oil overflowed into the bearing clearance. When the shaft stops rotating, bearing cooling, pore recovery, lubricating oil has been sucked back into the pores. Although there may be oil bearing form a complete film, but most of the occasion, the bearing oil film is in an incomplete state of mixed friction.
 
You can take advantage of the porous nature of the material, the lubricating oil filled porosity oil bearing bush materials: wood, grow cast iron, copper alloy and powder metallurgy antifriction material; can take advantage of an affinity with the lubricating properties of the material, uniformly dispersed in the lubricating oil oil-bearing materials, mostly polymer bearing materials, such as oil phenolic resin.

SKF bearings,FAG bearings,INA bearings,TIMKEN bearings,NSK bearings
Keyword:The working principle and characteristics of oil-bearing

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