Daimler is a global German automobile manufacturer and owner of the Mercedes-Benz brand. The DBL 5529 standard, published by this company, describes the elastomeric material requirements for star-jointed rear axle sleeves.
An elastomeric material is any type of material that exhibits elastic or rubber-like properties. Generally, elastomeric materials are measured in terms of material type, compound, and durometer (hardness of the material). Because there is a wide variety of elastomeric materials, application is critical to understanding the best material composition for the job.
For example, foam and sponge are generally considered to belong to the same family of elastomeric/plastic materials because they often exhibit the same cellular structure. They are also typically listed under industry specifications such as ASTM, MIL, UL, FMVSS, and similar standards.
Foam materials are a lightweight, open-cell product commonly used for insulation, filtration, and cushioning. These cellular materials are of low density to allow air movement throughout the cell structure. In addition to previous applications of conventional foam, high density foams have been developed for liquid sealing applications. In contrast, higher density foam products have a higher cell concentration. Medium and low density foams, on the other hand, have a lower cell concentration.
Sponge materials, on the other hand, are an expanded, rubber-based material. It can be processed into multi-material formulations, different compounds, densities, and open and closed cellular structures. The cells are not connected to each other, which prevents the material from absorbing and retaining liquid. Compared to foams, sponges have superior mechanical properties.
Both foam and sponge are available in sheets, rolls, and molded or extruded forms. It is used in the form of pressure sensitive adhesive in the automotive industry.
Common uses for elastomeric materials include: filtration, thermal insulation, cushioning, padding, gaskets, weather stripping and sound barrier. Elastomeric material is also used for the star jointed rear axle cuffs.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides testing services for elastomeric material for star jointed rear axle cuffs, within the scope of DBL 5529 standard, with its trained and expert staff and advanced technological equipment.
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