A plastic bush also known as a plastic bushing or plastic sleeve is a small cylindrical component typically made from various types of plastic materials such as nylon polyethylene, or polyurethane It is designed to serve as a low-friction bearing or spacer within mechanical assemblies Plastic bushes are commonly used to reduce friction wear and noise between moving parts such as rotating shafts or bolts passing through holes in machinery or equipment They provide a cost-effective and lightweight alternative to metal bushings and are often chosen for applications where corrosion resistance electrical insulation or non-magnetic properties are required Plastic bushes come in various sizes and configurations to suit different mechanical setups and are widely employed in automotive industrial and household appliances