Is metal powder and other powder metallurgy bearing anti-friction material constraints, sintering, shaping and oiled, porous oil bearing structure, in the hot oil moisten, pore Spaces is full of lubricating oil, while working for shaft neck roll suction role conflict and fever, swelling metals and the oil is heated, the oil out of the pore, and mold guide bush conflict surface lubrication, bearing after cooling, oil is sucked back into the pore.
According to different working conditions, powder metallurgy bearings with different oil content are used for rolling bearing.When the oil content is high, it can be used without compensating lubricating oil and under low load.Small oil content, can be used under heavy load and high speed;Powder metallurgy bearing containing graphite, because the graphite itself has lubricity, can improve the safety of the bearing, its disadvantage is low strength;In the case of no corrosion, it can be considered to choose cheap, high strength iron based powder metallurgy bearings, but the matching shaft neck hardness should be improved appropriately.
Powder metallurgy related products are mainly applicable to automobile occupation, equipment system work, metal occupation, aerospace, military industry, instrumentation, hardware tools, electronic appliances and other fields of spare parts production and research, related materials, accessories production, all kinds of powder preparation equipment, sintering equipment production.The products include bearing, gear, carbide cutting tool, mould, conflict products and so on.
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