Automotive

For 50 years BARBIERI RUBBER has been manufacturing all the rubber parts in the steering system of vehicles and other means of transport and movement, produced by the most prestigious European manufacturers.

Over the years we have specialized in designing and molding shock absorbers for the steering column, protection boots and bellows for transmission assemblies, and steering axle joints.

The protection boot for the steering system protects the constant-velocity joint from dust, mud, water and small solid bodies. The use of quality rubber in the protection boot is a necessity to achieve the high level of performance required by our automotive sector clients.

Once the bellows or boot mold has been created, we can produce it (by compression or injection molding) using all the main types of rubber available on the market. The choice of material for the boot is as important as its design.

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Description

Rubber Components for the Automotive Industry

Barbieri Rubber produces rubber components for the automotive industry: standard catalog parts and custom-designed components for spare parts, vehicle outfitting and OEM production. The range includes bellows, pads, anti-vibration feet, caps, paint protections, flat seals, grommets, hood rods, elastic closures, rubber nails and other technical components. Compounds NBR, EPDM, FKM (Viton®), VMQ silicone, HNBR and NR/SBR cover typical automotive requirements: oils, fuels, wide temperature range, vibration and paint cycles.

Typical automotive requirements

The automotive sector requires rubber components resistant to mineral oils, fuels, hydraulic and brake oils, temperature range from -40 to +150 °C, vibration and repeated mechanical stress. Life cycles must be long and repeatable, with controlled tolerances and compound traceability. Painting lines require oven-resistant compounds (EPDM and VMQ silicone). Damping needs call for NR in feet and pads.

Most requested automotive components

Among the most requested automotive rubber parts: cylindrical and modular bellows for rod and moving-part protection, pads for car lifts and stop buffers, anti-vibration feet for mechanical units and workshop equipment, caps and paint protections for paint cycles, flat seals for flanged couplings, grommets for cabinets and cable bundles, elastic closures and hood rods for hoods and doors, rubber nails for fast bodywork fastening.

Typical automotive compounds

NBR is the reference compound for mineral oils and fuels, FKM (Viton®) for aggressive oils and solvents, HNBR for heavy-duty hydraulics with high temperatures, EPDM for paint lines and outdoor applications, VMQ silicone for oven cycles and high-temperature applications, NR/SBR for anti-vibration feet and damping applications. Final selection depends on fluids, temperatures, mechanical stress and process cycles.

Compound Temperature range Feature Typical applications
NBR (Nitrile) -40 / +130 °C Mineral oil resistance Hydraulics, automotive
EPDM -40 / +100 °C Water, steam, ozone, UV Hydraulics, outdoor, photovoltaic
VMQ (Silicone) -60 / +200 °C High temperature Food, high-T
FKM (Viton®) -10 / +180 °C Aggressive oils, solvents Chemical, automotive, hydraulics
HNBR -20 / +160 °C Oil + high temperature Heavy-duty hydraulics
NR / SBR -50 / +90 °C Mechanical elasticity Anti-vibration, general

 

Standard components and custom designs

Most automotive components are supplied from catalog as standard rubber parts, with short lead times and no tooling cost. For brand-specific parts, dedicated geometries, custom shapes or special couplings, we produce items on drawing: at least a preliminary drawing from the customer is required. The dedicated mold is manufactured in cooperation with our trusted toolmaking partners. Production is ISO 9001 certified with compound traceability and process controls.

Frequently asked questions

Which automotive components are available from stock?

Bellows, pads, anti-vibration feet, caps, paint protections, flat seals, grommets, elastic closures, hood rods, rubber nails. Most recurrent sizes are standard catalog items, with no tooling cost for the customer.

Do you produce custom rubber parts for automotive?

Yes. For custom geometries, dedicated shapes or brand-specific requests we produce items on drawing. At least a preliminary drawing from the customer is required. The dedicated mold is manufactured in cooperation with our trusted toolmaking partners.

Which compound should I choose for automotive oil exposure?

NBR is the standard choice for mineral oils and fuels. FKM (Viton®) for aggressive oils, solvents and biofuels. HNBR for heavy-duty hydraulics with combined high temperatures. Selection is done case by case.

Do you produce rubber-to-metal bonded automotive parts?

Yes. We do rubber-to-metal bonding on pads, feet, supports, elastic closures and hood rods, with threaded inserts or dedicated hooks for direct fastening to the frame.

Which quality standards do you follow?

ISO 9001 certified production with compound traceability and process control. On request we handle PPAP, ISIR, first article inspection and conformity documentation for automotive suppliers.

Additional information

Materials

The rubber that is used must be both elastic, to keep the mechanical stress within the elastomer to a minimum, and also mechanically resistant to shocks.

The rubber of the protective boot is frequently hit by splashes of fluid such as oil and gasoline, while grease or lubricant that is corrosive for certain types of rubber is used inside the steering joint. These conditions make proper engineering of the materials critically important.

Also, correct determination of the temperature range in which the rubber component will be working is vital, so as to avoid problems of vitrification or deterioration of the material, resulting in the loss of its fundamental elasticity.

For all of these reasons, the choice of rubber is a determining factor; BARBIERI RUBBER usually studies and plans both the design and the material to be used in collaboration with the customer.

Es muy importante determinar el intervalo de temperaturas bajo las que trabajará el artículo de goma para evitar problemas de vitrificación o deterioro del material con la consiguiente pérdida de características elásticas fundamentales.

Por todos estos motivos, la elección de la goma es un factor determinante.

BARBIERI RUBBER estudia y proyecta en colaboración con el cliente tanto el diseño como el material a utilizar, ofreciendo también el servicio de análisis de los materiales y efectuando pruebas de vida acelerada en laboratorio.

Applications

Barbieri Rubber has been involved with the manufacture of brake pincers for over 50 years, from design to production of the dust boot and the piston seal.

The materials developed for these items have taken several years of study and testing and are still evolving and being improved upon.

The rubber used is certified, it is not subject to deterioration by the brake oil or brake fluid, and at the same time it maintains its seal and protection characteristics for a long time.