Nitrile (Buna-N) Rubber Bellows

Nitrile Rubber Bellows

Contact us today or give us a call at 866-601-3527!

Keep your hard-working machinery safe from oil and other hydrocarbon-based fluids with high-performing, long-lasting nitrile (Buna-N) rubber bellows from Custom Quality Manufacturing.

We design, develop and deliver custom nitrile rubber bellows that effectively and efficiently protect your valuable equipment from oils, hydrocarbon-based fluids, kerosene, diesel, grease, and petroleum-based transmission fluids.

Our durable, reliable nitrile rubber bellows are expertly engineered, skillfully crafted, and rigidly tested to meet – and exceed – your exacting specifications and provide the protection your machinery and equipment need to function at a high level each and every day.

Our custom nitrile rubber bellows:

  • Foster clean work environments
  • Extend the service life of your equipment
  • Reduce costly maintenance and downtime
  • Improve productivity
  • Reduce noise
  • Resist shock and vibration

Serving your industry

Nitrile is the most widely used elastomer in the sealing industry. Bellows and rubber dust boots made from nitrile rubber are used in a wide range of applications with a stroke or designed range of motions, including:

Providing the Product You Need

CQM’s expert engineers work closely with you to design, develop and deliver the exact right nitrile rubber bellows you require. We use special manufacturing techniques, offer the best materials, and complete your project quickly to provide the best protection for your equipment.


We manufacture our nitrile rubber bellows – also known as nitrile bellow hoses, expansion bellows, rubber expansion joints, and rubber dust boots – utilizing high-quality rubber compression molding and rubber transfer molding.


Nitrile rubber has excellent resistance to petroleum-based products, moderate resistance to weather, and poor aromatic oil resistance. Different grades are available for this rubber. The higher the acrylonitrile content within the polymer, the higher the oil resistance.

Nitrile rubber performs well across a wide temperature range, from -22°F to 212°F.

Name Abbreviation Tensile Strength Elongation at the Break Rebound Resilience Tear Strength/Tear Resistance Abrasion Resistance
Nitrile (BUNA-N) NBR Good Good Satisfactory Satisfactory Very Good


Our nitrile rubber bellows can be crafted into a variety of shapes depending on your application:

  • Straight convolution
  • Spiral convolution
  • Concentric
  • Tapered
  • Square

Delivering the Service You Deserve

Custom Quality Manufacturing has designed, manufactured, and marketed custom-made high-quality protective covers for nearly a quarter-century.

We are a family business, with a second-generation now managing the company. Our values of family, commitment, respect, and genuine concern for our clients have helped us build a broad customer base.

Our expert engineers and technicians are constantly evaluating and testing new materials, developing new products, and improving our manufacturing and quality control systems.

Our dedicated accountants, sales representatives, and marketing specialists provide unparalleled customer service, sell our products across the globe, and are always working to add more customers.

We have the experience, expertise, and equipment to provide you with the best protective products on the market.

We understand that sometimes you need nitrile rubber bellows fast.


Please contact us for more information about custom Nitrile rubber bellows options.

Need help figuring out exactly what product you need? Speak with one of our engineering experts.