Zhuzhou Tungsten Carbide

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Customized Stepped Tungsten Carbide Alloy Bushings and Sleeves


Cemented carbide bushings—also known as tungsten steel bushings—are versatile components designed for protection. Their specific function and purpose in practice depend heavily on the application environment. In valve applications, they are installed on the valve stem and bonnet to minimize leakage and ensure a tight seal; in bearing applications, they serve to reduce wear between the bearing and the housing and prevent the clearance between the shaft and the bore from widening. Characterized by high hardness and strength, these bushings withstand prolonged loading and offer excellent chemical stability, making them suitable for use in corrosive environments involving alkalis, alcohols, ethers, hydrocarbons, acids, oils, detergents, and water (including seawater). Being odorless, non-toxic, tasteless, and rust-resistant, they are widely used in the petrochemical industry for equipment such as submersible oil pumps, slurry pumps, water pumps, and centrifugal pumps.

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