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Couplings are used to connect two shafts together with the intention of transmitting power and at the same time absorb misalignments and vibrations. Jaw couplings are for general, all-purpose applications that consists of a pair of toothed hubs with a flexible elastomeric insert in between, called a spider, to absorb vibrations. Cone ring couplings are composed of 2 flanges interlocked by steel pins mounted with tapered rubber rings that allow misalignments and vibrations that make them suitable for pumps, agitators and compressors. HRC couplings is a pair of either B, H or F-type flanges that sandwich a rubber element designed for high compression applications such as electric motors and combustion engines.