Detailed description The elastic sleeve pin coupling is a non-metallic elastic element flexible coupling, and its structure is very similar to the flange coupling, but the connection of the two half couplings does not require bolts but uses rubber or leather sleeves. The pin to realize the connection of the two halves of the coupling.The elastic sleeve pin coupling used to be a widely used water pump coupling in our country. It was formulated as a standard of the Ministry of Machinery in the late 20s. The JB50-08 elastic sleeve pin coupling is a national standard.In order to replace the pin sleeve easily without dismantling the machine, pay attention to the distance A in the design; in order to compensate for the axial displacement,