Elastomer coupling

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Elastomer couplings with various shaft-hub connections or as a safety coupling or cardan shaft

The elastomer coupling is a coupling that is used in applications that are prone to vibrations and impacts. Damping properties are achieved by the connecting element between the two hubs . This elastomer ring is available in different Shore hardnesses . Depending on the requirements, an elastomer ring with low damping properties (high torsional stiffness ) is used for low vibrations or light impacts and an elastomer ring with a high degree of damping (low torsional rigidity) for heavily vibrating systems or large impacts. For special cases in which the installation space is small and the speed is very high, elastomer couplings reinforced with threads or metal are used. Here the torque is transmitted via the internal tissue and the elastomer takes on a damping function. These clutches can also be operated in reverse as they are not pretensioned and do not rely on rubber-metal adhesion. A frequent application is, for example, in the cardan shaft in rear-wheel and all-wheel drive vehicles, in marine propulsion technology and in mechanical engineering.

A good hysteresis loop and reduced wear behavior are further advantages of the elastomer coupling. Speeds can by one to 30,000 / min precision balancing can be achieved. Misalignment in the case of lateral, angular and axial misalignments are also compensated for by elastomer couplings. Due to its design, this coupling has an electrically insulating effect .

The elastomer star between the two coupling halves absorbs vibrations and shock loads

Application areas: