KC roller chain coupling manufacturer price Jinan, Shandong Jinan Ningfasite roller chain coupling is the use of common chain, while the two side by side sprocket teeth engage the same. The main difference between the different types of chain coupling structure is different chain, a common double roller chain coupling, single-row roller chain couplings, silent chain couplings, nylon chain couplings . Double roller chain coupling structure is superior to other types of couplings, widely used at home and abroad, our country has formulated a national standard. Chain coupling has a simple structure (composed of four parts), easy assembly and disassembly, disassembly without moving the coupled two-axis, compact size, light weight, have a certain ability to compensate for installation less precision, reliable, life longer, lower cost.