A brass sleeve is a cylindrical component typically made from brass, a durable alloy of copper and zinc. Brass sleeves serve various functions across multiple industries, owing to their excellent mechanical properties and corrosion resistance. These sleeves are commonly used in mechanical and engineering applications where a combination of strength, conductivity, and aesthetics is required.

In automotive and machinery, brass sleeves are often employed as bearings or bushings, providing smooth and reliable rotational motion while reducing friction between moving parts. Their ability to withstand high temperatures and resist corrosion makes them ideal for use in engines, transmissions, and other critical components. Additionally, brass sleeves find application in plumbing systems, where they serve as fittings for joining pipes or providing support and reinforcement for pipe connections.