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We can supply various specification for couplings, HRC coupling, NM MHcoupling, flexible coupling, Jaw coupling, FCL coupling, ROTEX Coupling, bowex coupling etc.Our Chain coupling size from 3012; 4012; 4014; 4016; 5014; 5016; 5018; 6018; 6020; 6022; 8018; 8020; 8022; 10020; 12018; 12022.The chain coupling composed of two-stand roller chains and two sprockets, features simple and compact structure, and high flexibility power transmission capability and durability. What's more, the chain coupling allows simple connection/disconnection, and the use of the housing enhances safety and durability.Chain coupling belongs to inelastic flexible coupling element. Using double roller chain simultaneously engaged with two identical sprockets, in order to achieve the two coupling halves connected.The main difference between different chain coupling is a different chain, common are duplex roller chain coupling, simplex roller chain couplings, silent chain couplings, nylon chain couplings.Chain coupling can be used in the textile, agricultural, material handling, engineering, mining, light industry, chemical mechanical shaft drive system.Chain coupling is able to work under high temperature, humidity and dusty environment, but not apply to the occasion of high-speed, severe shock load and transferring axial forces.Chain couplings should work under the conditions of good lubricating and protective cover.Advantages1) Chain coupling has a simple structure (composed of four parts).2) Easy assembly and disassembly, disassembly without moving the3) Coupled two-axis,4) Compact size, and light weight.5) No high precision requirements for installation.6) Reliable operation.7) Low coast.8) Long service lifeSeveral reasons causing failure: 1) Overload; 2) The chain or sprocket prolonged use of excessive wear and tear; 3) The cover is not installed, so that the chain is easy to be corroded and broken.