Steel Metallurgy
Steel Metallurgy
Powder metallurgy bearing is made of metal powder and other anti-friction material powder pressing, sintering, plastic and oil, and has a porous structure, after infiltration in hot oil, pore Spaces filled with lubricating oil, work due to the effect of suction of the shaft neck rotation and friction heat, expansion of metals and the oil is heated, the oil out of the pore, the lubrication and friction surface, bearing after cooling, oil is sucked back into the pore.