Shock Absorbers Feet

Rubber feet, also known as rubber bumpers or anti-vibration mounts, are mechanical components designed to absorb shocks, vibrations, and noise generated by equipment or structural contact.
They consist of a vulcanized rubber base permanently bonded to a metal insert, typically a steel disk with an integrated screw or threaded stud.
The direct rubber-to-metal vulcanization process ensures strong adhesion at the interface, preventing delamination under dynamic loads or harsh conditions. These elements are widely used in industrial applications as support feet, mechanical stops, or vibration isolators.

Description

Rubber Shock Absorbers and Anti-Vibration Feet

Barbieri Rubber’s rubber shock absorbers are molded elastic supports for vibration isolation and stable mounting of industrial machinery, equipment and systems. The catalog includes cylindrical, cone, parabolic and suction-cup rubber anti-vibration feet, with male or female threads in M6, M8, M10, M12 and beyond. All anti-vibration mounts are produced in NBR, EPDM and technical compounds selected for service life and aging resistance.

Rubber anti-vibration feet types

The catalog of rubber anti-vibration mounts is organized in four families. Cylindrical feet are the most common: maximum bearing surface, optimal load distribution and effective damping. Cone feet provide progressive loading and high lateral stability, suitable for precision machinery. Parabolic feet offer an optimized load curve with good static and dynamic behavior. Suction-cup feet guarantee stable grip on smooth surfaces with no mechanical fastening.

Threads and rubber anti-vibration mounts

Our anti-vibration mounts are available with threads in different metric sizes and, on request and with dedicated tooling, in special sizes. The range of rubber anti-vibration mounts for industrial machinery includes standard configurations and reinforced versions for higher loads. For severe vibration applications we select compounds with a good damping/elasticity balance (rubber silentblock with thread, industrial rubber vibration dampers).

Compounds and hardness for anti-vibration feet

Standard compound: SBR. Hardness is selected based on static load and vibration frequency: lower hardness gives more damping, higher hardness gives more stability. For aggressive environments (oils, solvents, high temperature) FKM (Viton®) and silicone (VMQ) are also available.

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

Standard and made-to-drawing anti-vibration feet

The catalog range of rubber anti-vibration feet covers the diameters and threads most requested on the B2B market. For specific loads, vibration frequencies or non-standard size constraints we manufacture rubber feet in other formats to drawing: at least a preliminary drawing is required for any custom production. The dedicated mold is built in cooperation with toolmaking partners.

FAQs

What are rubber anti-vibration feet for?

Rubber anti-vibration feet isolate the vibrations of a machine from the floor or support and provide stable mounting without rigid fastening. The result is reduced transmitted noise, lower stress on foundations and higher accuracy on precision equipment.

Which types of anti-vibration feet does Barbieri Rubber produce?

We produce four main types: cylindrical (maximum bearing surface), cone (progressive loading), parabolic (optimized load curve) and suction-cup (stable grip on smooth surfaces).

Which compound should I choose for the feet?

NBR is the standard compound for environments with mineral oils. EPDM suits outdoor environments or exposure to water and UV. FKM (Viton®) and silicone (VMQ) are available for more severe conditions (high temperatures, aggressive chemicals).

Can I order anti-vibration feet to drawing?

Yes. For non-standard sizes or threads we manufacture anti-vibration feet to drawing starting from the drawing supplied by the customer, even preliminary. The dedicated mold is built in cooperation with toolmaking partners.

Additional information

APPLICATIONS	Rubber feet are used for support, but they are also used as vibration-damping pads designed to cushion shock from a moving mass. In the former case, they provide adhesion to the supporting surface and vibration damping that no other material can match. When used as end buffers, they provide excellent durability and flexibility.
MATERIALS	The standard material used in production is SBR rubber, which combines excellent mechanical and durability characteristics. Using other materials for production is to be considered in cases where the item will be used under abnormal conditions in terms of temperature or contact with aggressive substances.
PRODUCTION	The adhesion of rubber to metal comes from standard shock absorber production technology, composed of two screws, male or female, between which is interposed a disk of elastic polymer material that can damp down the vibrations of one part over another.