Outstanding Durability 
Chain coupling performs outstanding durability with the torque on the coupling shared with the surface hardened teeth of the sprockets and the powerful roller chains that engage with the teeth. 

Easy Coupling and Decoupling 
Both shafts can be easily coupled or decoupled with a single joint pin inserted into or extracted from the roller chains. 

Absorption of Large Misalignment
The clearances between the chains and sprockets and between chain components absorb the great positional misalignment of both shafts.