What is a Oil Impregnated Bronze bushings?
Dec 15, 2024
Bronze bushings can be treated with oil impregnation and sintering.
Oil impregnation:
Oil impregnation is a surface treatment for bronze bushings. Oil impregnation can make the surface of bronze bushings smooth and bright, and improve its wear resistance and corrosion resistance.
Sintering:
Sintering is an important step in the manufacturing process of bronze bushings. It is usually achieved through powder metallurgy, including raw material mixing, pressing, sintering and other processes.
Sintering can strictly control product quality and ensure the performance stability and reliability of bronze bushings. During the sintering process, a large number of interconnected pores are formed inside the material, which help to guide the lubricant to the area between the shaft and the bearing to achieve self-lubricating function.
Combination of oil impregnation and sintering:
Oil-impregnated sintered bronze bushings combine the advantages of both oil impregnation and sintering. It usually has excellent self-lubricating properties, wear resistance and corrosion resistance, and is suitable for medium-speed and heavy-load bearing systems.
This kind of bushing is widely used in the fields of shipbuilding, machinery, and electrical engineering. For example, it is used as key components such as propellers, gears, bearings, and bushings to ensure the stable operation of the equipment and extend its service life.

What is a Oil Impregnated Bronze bushings?
Oil-impregnated bronze bushings are manufactured through powder metallurgy, which is self-lubricating and maintenance-free. The process also creates pores in the bronze bushing structure. These pores are interconnected and can act as a reservoir for lubricant, providing a channel for it to flow to the bushing surface. As the temperature rises, the shaft begins to rotate and load is applied, and the oil is forced to flow out of the reservoir in the pores and flow to the bushing surface. Because the volume expansion of the oil is much greater than the volume expansion of the metal. When the shaft stops rotating, the oil is reabsorbed into the porous reservoir. Oil-impregnated bronze bushings can be used in a variety of fields. For example, agricultural machinery, aircraft, commercial machines, automobiles, conveyors, cranes, electrical appliances, generators, hydraulics, machine tools, packaging machinery and other industries.







