Plain Guide Bush GBB is a type of bushing used in jig and fixture applications to provide accurate and precise alignment between two machine components. The GBB bushing consists of a cylindrical sleeve made from high-strength steel or aluminum, with a smooth bore that fits snugly over a corresponding machine component. The plain design of the bushing provides a low-friction surface for the machine component to slide against, while the high-quality materials used in its construction ensure a long service life and minimal wear. Plain Guide Bush GBB is available in a range of sizes and configurations to suit different machine applications and is widely used in manufacturing processes such as drilling, milling, and grinding.