Self-Lubricating Plastic Bushing 20*23*21.5

Excellent shock absorption and noise reduction performance
Compared with metals, plastics have natural elasticity and damping effects, which can effectively absorb and reduce the vibration and impact loads generated during mechanical operation.
Shock absorption: This characteristic makes plastic bushings particularly important in high vibration environments such as construction machinery and automotive chassis, which can improve equipment stability and operational comfort.
Noise reduction: Direct contact between metals can easily produce harsh noise. Plastic lining, as an intermediate medium, can effectively eliminate direct collision and friction noise between metals, making equipment operate more quietly. This is crucial performance in areas such as office equipment and household appliances (such as washing machines, air conditioners).
Excellent corrosion and dirt resistance
Plastic liners have natural resistance to various chemicals such as acids, alkalis, and solvents, and will not corrode like metals. This makes them very suitable for use in harsh environments such as humidity, salt spray, and chemical media, such as:
Food and beverage industry: corrosion-resistant and does not require lubricating oil, avoiding the risk of product contamination.
Chemical industry: used for pumps, valves, and mixing equipment.
Water and marine equipment: capable of withstanding seawater erosion.
Agricultural machinery: In extremely dirty environments filled with fertilizers, pesticides, and mud, oil-free lubrication avoids the "oil sludge" effect (oil adheres to dust and intensifies wear), making performance more reliable.
Lightweight and cost reduction
The density of engineering plastics is much lower than that of metals (for example, POM has a density of about 1.4 g/cm ³, while bronze has a density of about 8.8 g/cm ³). In weight sensitive industries such as automotive and aerospace, using plastic liners is one of the effective means to achieve the goal of lightweighting.
At the same time, plastic liners can be mass-produced through injection molding, with high efficiency and low cost, and can be directly made into final products with complex shapes (such as flanging and oil grooves), reducing subsequent machining processes and further reducing manufacturing costs.

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