1.Compact size and small inertia.

 2.The coupling uses engineering plastics as elastic elements,with cushioning ,vibration reduction and wear resistance.

 3.The elastomer is limited by convex claw block ,which can avoid internal deformation caused by impct ,and external deformation caused by centrifugal force.The large concave surface of the convex claw makes the surface pressure on the involute tooth very small,even if the tooth bears overload ,the tooth will not wear or deform.