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Flexible Rubber Bellow

Neoprene bellows, also known as chloroprene bellows, CR bellows, or expansion joints, convoluted rubber bellows, or rubber dust boots, are usually used as sealing elements, and dust covers & dust boots in automotive industry, refrigeration industry and others. Xiamen Better Silicone is a professional rubber bellow supplier, which manufactures industrial bellows and automative bellows. Stock Rubber Bellows are also available.
  • Rubber Bellows

  • Better-Silicone

  • 3917310000

Flexible Rubber Bellows

Flexible Rubber Bellows also known as Rubber Expansion Bellows, Custom Rubber Bellows, Silicone Rubber Bellows or Expansion Joints, Convoluted Rubber Bellows, or Rubber Dust Boots,which are usually used as sealing elements, and dust covers & dust boots in automotive industry, refrigeration industry and other areas.

Flexible Rubber Bellows have good performance, and is usually made by compression molding, extrusion mould or liquid silicone rubber injection molding.

liquid silicone bellow and solid rubber bellows

For silicone rubber bellows that used as connector or sleeve and do not have strict requirement on the size tolerance, and do not have special material requirement, compression molding is enough. While if the structure of the bellow is complicated, and compression molding can not achieve the design structure and can not demold, then will need to choose liquid silicone injection molding to produce.

Liquid Silicone Injection Molded  Silicone Bellows are much expensive than compression molded Custom Rubber Bellows.

LSR Silicone bellow by liquid silicone rubber molding

Custom Molded Rubber Bellows Manufacturing Process  

Flexible Rubber Bellows Functions: 

  • Machinery seal;

  • Dustproof;

  • Absorption of vibration;

  • Noise Reduction;

  • Electrical insulation.

According to different working environment, special properties material can meet different demands:

Rubber Bellows Materials

Silicone Rubber Bellows' Advantages:

  • Wide Working Temperature Range: -40℉ / -40℃—248℉ / 120℃

  • Excellent Elongation: Up to 600%

  • Good Tensile Strength

  • Good Aging Resistance

  • Oil & Grease Resistance

  • Chemical Resistance: Acid and alkali can hardly destroy the neoprene material.

  • Weather Resistance: Excellent performance in anti-ozone and anti-weather.

  • Better flame resistance: Neoprene is the best flame-resistance material among general rubbers. Neoprene cannot combust spontaneously. It burns when contacting flame, but puts out by itself once isolating the flame.

Rubebr Bellows can be customized into different shapes & constructions:

Tapered Rubber Bellows; Square Rubber Bellows; Straight Expansion Joints

rubber bellow



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