A bellow cover is a flexible, protective covering used to shield machine components such as shafts, spindles, guideways, screws, or pistons from dust, dirt, oil, and other contaminants. Made from materials like rubber, PVC, synthetic fabric, or metal, these covers are engineered to expand and contract—like an accordion—allowing them to accommodate movement while maintaining protection.
Bellow covers are critical in environments where precision and durability are paramount, such as CNC machines, automation equipment, medical devices, and hydraulic systems. They prevent foreign particles from entering sensitive parts, reducing wear and extending the life of machinery. They also serve a safety function by enclosing moving parts, reducing the risk of injury.