Rubber bellows are also called rubber telescopic tubes, rubber sheaths, corrugated rubber sleeves, rubber dust-proof sleeves, rubber corrugated dust-proof sleeves. Rubber bellows mainly use the expansion of the bellows to achieve the unique properties of rubber, such as high elasticity, high air tightness, medium resistance, weather resistance and radiation resistance. Rubber bellows are formed by pre-moulding pure rubber materials and vulcanizing by high temperature moulding or cross-linking by high pressure and high temperature moulding after oblique crosslinking of polyester cord cloth with high strength and thermal stability. It has high internal density, can withstand high pressure, and has excellent elastic deformation effect. Differentiated from metal bellows, rubber bellows are characterized by shock absorption and noise reduction.
The design of rubber bellows varies greatly according to the different working conditions and performance requirements. Common parameters include size, material, hardness, color, temperature, pressure, working environment, etc. Rubber bellows have the characteristics of good compressibility and resilience, small permanent deformation, no softening, no decomposition at high temperature, no hardening at low temperature, no brittle cracking, good corrosion resistance, small friction coefficient, good wear resistance, good aging resistance and durability. Rubber bellows are widely used in aviation, petroleum, chemical industry, metallurgy, electric power, paper making, medicine, food, wood, tobacco, transportation and other industries because of their small diameter tolerance, oil resistance, heat resistance, excellent performance, lightweight, flexible and durable tube body. Rubber bellows are more widely used in mechanical automotive parts industry because they can be retracted without affecting the performance of products and have the advantage of no noise.