Product Description Product Description Chain coupling is composed by a duplex roller chain and 2 sprockets. The function of connection and detachment is done by the joint of chain. It has the characteristic of simplicity, high efficiency, easy – on and easy-off and nice out-look.It also has a aluminium cover to prevent dust and protect … Continue reading China high quality Mh Pin Shaft Universal Steel Trailer Rigid Flexible Couplings Jaw HRC