Rubber bellows are also called rubber bellows, rubber sheath, corrugated rubber sleeve, rubber dust cover, rubber corrugated dust cover. Rubber bellows mainly use the expansion and contraction of corrugations to achieve the unique properties of rubber, such as high elasticity, high air tightness, medium resistance, weather resistance and radiation resistance. Rubber bellows are pre-formed with pure rubber materials and then vulcanized by high-temperature molding or compounded with high-strength, high-temperature-stability polyester cords, and then cross-linked by high-pressure and high-temperature molding. The internal air density is high, can withstand high pressure, and has excellent elastic deformation effect. Compared with metal bellows, the biggest feature of rubber bellows is shock absorption and noise reduction.

The design of rubber bellows varies greatly depending on the using environment and performance requirements. Common parameters include size, material, hardness, color, temperature, pressure, working environment, etc. Rubber bellows has good compressibility and resilience, small permanent deformation, no softening and decomposition at high temperature, no hardening at low temperature, no brittle cracking, good corrosion resistance, small friction coefficient, good abrasion resistance, good aging resistance , durable characteristics. Rubber bellows are widely used in aviation, petroleum, chemical, metallurgy, power, transportation and other industries due to their small outer diameter tolerances, excellent oil resistance, heat resistance and other properties, light weight, soft and durable pipe body. Rubber bellows are more widely used in the machinery and auto parts industry because they can expand and contract without affecting the performance of the product.

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