Powder metallurgy bearing is metal powder and other reduced friction material powder pressing, sintering, shaping and soaking oil, with porous structure, in the hot oil infiltration, pores filled with lubricating oil, working because of the journal rotation of suction and friction, make the metal and oil heat expansion, oil extrusion pores, and then friction surface lubrication, bearing cooling, the oil is sucked back into the pores.

Powder metallurgy oil bearing (oil bearing) is a kind of porous alloy products soaked with lubricating oil in the pores.

When the shaft rotates, the temperature of the oily bearing increases and pumps due to the friction between the shaft and the oily bearing.

The lubricating oil seeps out of the friction surface containing the internal diameter or outer diameter of the oil-bearing bearing, when the shaft stops rotating.

The lubricating oil is returned inside the oil-bearing bearing.

Therefore, the consumption of lubricating oil is very small, which can be used for a long run without supplying lubricating oil from the outside.

Very suitable for oil supply difficulties and avoid lubricating oil contamination occasions.

A large number of oil-bearing bearings are used in: motor industry, automobile and motorcycle industry, home appliance industry, digital products, office equipment, power tools, textile machinery, packaging machinery and other kinds of mechanical equipment.

Powder metallurgy oil bearing is generally mainly made of raw material powder by pressing, sintering, shaping, oil immersion and other processes.

Most of the machines are more automated.

Daily output is relatively large, most products can be formed at one time, so the larger the batch, the better production.

And now the mold with a little less words may do hundreds of thousands of pieces, more words may do more than a million pieces.

But the cost of the mold is relatively high, so it is not good to do with less batches, and the time to replace the mold is also long.

Powder metallurgy oil bearing can be formed at a time, basically without cutting processing.

The cost is lighter than machining, the material waste is less, so the price is cheaper.

It is also in line with the current national policy of promoting energy conservation, so it is considered a technology that will not fall behind.