Bellows

 

Bellows are seal components that provide protection from the external environment (fluids, sprays, sludge), but also keep rods, cylinders, cardanic joints correctly lubricated.

All our products are tested on test benches, stroke tests, high speed rotation tests, etc. They can withstand extreme temperatures and significant angles and strokes. In order to validate all these elements, numeric calculations and tests are carried out to confirm the selected geometry.

// Automotive sector
// Truck sector
// Rail sector  
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Aeronautics sector
// Oil exploration sector
// Miscellaneous Industry sector

 

CVJ boots (Rubber/TPE)

Three-lobe, four-lobe, circular: DELMON INEPSA manufactures all types of transmission boots.

  • RUBBER / THERMOPLASTIC
  • HIGH PERFORMANCE FORMULAE (compatible with greases)
  • DYNAMIC APPLICATIONS (3000 rpm)
  • ASSEMBLED OR BONDED TO METAL CUPS

We design our formulae to be compatible with transmission greases. We validate our bellows internally using test benches. For aftermarket, we supply complete kits with grease, metal fixing and clamp in individual boxes. We have developed universal bellows kits that can be adapted to different vehicles.

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Longitudinal / propshaft transmission bellows

These bellows are fitted to the Propshaft.

  • HIGH PERFORMANCE COMPOUND (COMPATIBLE WITH GREASES)
  • DYNAMIC APPLICATIONS (11000 RPM)
  • CRIMPED OR BONDED TO METAL CANS

We design our CR, HNBR or Silicone compound to be compatible with transmission greases.

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Steering bellows (Rubber/TPE)

Also known as rack bellows, they are used to protect steering shafts and ball joints, as well as the rack.

These bellows, which are usually made from TPE, prevent external elements (water, dust, mud, sand) from penetrating or creating premature wear on the steering elements.

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Cabin bellows (gearbox control)

3-position parking brake bellows, located on truck vehicle dashboard.

  • MAJOR CRITERION: AESTHETICS
  • RUBBER / THERMOPLASTIC

Burrs on partlines are perfectly controlled, the elastomer surface is compliant with a VDI grain aspects, the elastomer formula is specific (Natural rubber or EPDM base without alteration of the original colour over time) while providing the endurance requested by the manufacturer.

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Rubber/TPE PROTECTION BELLOWS (CLUTCH / BRAKE CYLINDER / BALL JOINT SEAL)

Bellows are essential to guarantee the correct system operation and prevent wear on certain functions such as the clutch system, brake cylinders, ball joints.

  • RUBBER / THERMOPLASTIC (PEROXIDE EPDM, SILICONE, HNBR, ...)
  • HIGH PERFORMANCE COMPOUND (COMPATIBLE WITH GREASES)
  • HELD IN PLACE USING A CLAMP OR METAL SPRING SYSTEM

They prevent dust, water and sand from entering the mechanism. We produce bellows of all sizes and materials depending on the environment.

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Sleeve

Used for household appliances, this is the seal used on washing machine doors.

  • WHITE ELASTOMER
  • RESISTANT TO DETERGENTS

Round in shape, the sleeve is fitted with a fixing frame system to hold it in place.

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