HL nylon rod pin coupling is the use of one end with a flexible sleeve (nylon rod) of the pin, mounted in the half of the coupling flange hole in order to achieve the coupling of the two halves. Elastic pillar coupling was once the most widely used coupling in China, as early as the late 1950s that has been developed for the mechanical department standard, JB08 -60 flexible ring pin coupling, is China's first standard Coupling.

    The elastic pillar coupling structure is simple, easy to manufacture, no lubrication, no need to bond with the metal vulcanization, easy to replace the elastic sleeve, do not move the semi-coupling, with a certain compensation for the relative deviation of the two axes and vibration damping performance. Elastic sleeve work is subject to compression deformation, due to the thickness of the elastic sleeve is thin, small size, elastic deformation is limited, so the elastic pin coupling can compensate for axial displacement and elasticity, but the axis displacement allow less compensation, flexibility Weak. The elastic pin coupling is a friction torque that is generated by the locking force of the pin set and compresses the rubber elastic sleeve to transmit the torque. Applicable to the installation of a good rigidity, high precision, the impact load is not large, low vibration requirements of the small and medium power shaft drive.

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• HL type - elastic pin coupling