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The STMA Spring Grid Coupling SV from HMA Flow & Industrial is a flexible grid coupling that reduces vibration by as much as 30%. In addition, it cushions shock loads to safeguard driving and driven equipment. The flexible nature of the spring-like grid absorbs impact energy by spreading it over time, thus reducing the magnitude of the peak loads. This is possible due to the progressive contact that occurs between the curved profile of the hub teeth and the flexible grid.