1. Product introduction and applicable scope
Serpentine spring coupling is an embodiment of high-torque of gear coupling and flexibility of flexible coupling, for applications where high torque is required, it is the simplest and most economical coupling.
2. Structural features 
T10 basic type coupling: use for double flexible closed design of four-bearing system. It is characterized by combination of horizontally half split housing, serpentine spring and coupling, which allows replacement easily-worn parts without moving the equipment connected. 
T20 high-speed coupling: double flexible closed design. It is characterized by combination of vertically split steel housing and serpentine spring as well as coupling, mainly used for the operating conditions of high speed rotation. 
T31 Double-flange type coupling, T35 single-flange type coupling: the middle section can be disengaged in order to facilitate maintenance of bearings and seals of the connected equipment. They are very ideal for use in pump. 
T63 brake disc type coupling: it is better than the drum type brake in terms of cost, structure and performance etc.