Xiamen Better Silicone Rubber Co.,Ltd
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Rubber Sealing Bellow

Rubber Sealing Bellow, also known as Neopreno bellows, CR bellows, NBR bellows, EPDM & EPM bellows, FKM bellows, PEFE bellows, TPR bellows, expansion joint covers, rubber dust boots or flexible rubber bellows, which are commonly used in mechanical sealing, dust prevention, industrial and automotive application. Xiamen Better Silicone is a professional rubber bellow supplier, which manufactures industrial bellows and automative bellows. Stock Rubber Bellows are also available.

Rubber Sealing Bellow 

Rubber Sealing Bellows, also known as Neopreno bellows, CR bellows, NBR bellows, EPDM & EPM bellows, FKM bellows, PEFE bellows, TPR bellows, expansion joint covers, rubber dust boots or flexible rubber bellows, which are commonly used in mechanical sealing, dust prevention, industrial and automotive application.

custom molded flexible expansion silicone rubber bellow

Rubber Sealing Bellow Advantages:

  • Protect machinery against dust, water, some grease, some acids, bleaches, metal chips, and other debris.

  • Foster clean work environments.

  • Extend the service life of your equipment.

  • Reduce costly maintenance and downtime.

  • Improve productivity.

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

  • Excellent Elongation: Up to 600%.

  • Good Tensile Strength.

  • Good Aging Resistance.

Rubber Sealing Bellow Main Shape:

  • Straight Rubber Bellow.

straight convolution flexible silicone rubber bellow

  • Tapered Rubber Bellow.

expansion joint installation

  • Metal+Rubber Overmolded Bellows.


  • Rubber Bellow with Clamping, Holes & Locks


  • Custom Rubber Sealing Bellow Productions:

custom molded expansion sillicone rubber bellow3

LSR Sealing Bellow And Compression Silicone Rubber Sealing Bellow:

Liquid Silicone Rubber Sealing Bellow's Adventages:

  1. More Transporant.

  2. Fine Parting Line.

  3. Medical Grade And Food Grade.

  4. Stable Quality.

  5. Suitable for Products Requiring High Volume Production.

  6. Stable Size (Platinum Vulcanization).

Liquid Silicone Rubber Sealing Bellow's Disadventage:

  1. More Expensive.

  2. Not Suitable for Small Quantities.

Compression Silicone Rubber Sealing Bellow's Adventage:

  1. Cost less.

  2. Suitable for Different Rubber Materials.

Compression Silicone Rubber Sealing Bellow's Disadventage:

  1. Long Cure Time (Hyperoxide).

  2. Obvious Parting Line.


Rubber Sealing Bellow Production Process:

Rubber Sealing Bellow Main Materials:

  • Nitrile rubber bellows combine very good abrasion resistance with good tensile strength.

  • Silicone rubber bellows lack abrasion resistance but have good rebound resilience.

  • Neoprene rubber bellows have good tensile strength, elongation, and tear resistance.

  • Natural rubber bellows have good tensile strength and tear strength.

Material Abbreviation Temperature Range Aging Weathering Ozone Resistance to Oil & Grease
Water Swell Resistance Flex-Fatigue Economy of Material Material notes
Chloroprene(Neoprene) CR -4o℉ to 250℉ Good Good Average Excellent Good Exposure to refrigerants, can be compounded for FDA applications
Nitrile NBR 122℉ to 212℉ Poor Excellent Good Good Excellent Automotive applications, good oil proof
Ethylence-Propylene EPDM, EPM -60℉ to 300℉ Excellent Poor
Excellent Good Excellent Outside applications, good weather proof
Silicone VMQ -75℉ to 450℉ Excellent Average Excellent Excellent Average Medical applications
Fluo Rubber FKM 5℉ to 390℉ Excellent Excellent Good Average Poor Rubber king, widely applications

Why Choose Xiamen Better Silicone Rubber Co.,Ltd?

  1. Own mold-making technology ( since 1998).

  2. Competitive price: origin manufacturer.

  3. Five experienced designers: offer technology/production/design/artwork support etc.

  4. Production and test strictly according to ISO9001.

  5. Complete production plant, equipment, environment.



Office Address: Room No. 513-515, 5F, Culture Creative Park,No.10 Huli Avenue, Huli District, Xiamen, China
  Factory Address: 165th, Tong'An Park, Industrial Zone, Tong'An District, Xiamen City, China
 Post Code: 361000
Tel: 86 592-5616001
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