Our Chain coupling size from 3012; 4012; 4014; 4016; 5014; 5016; 5018; 6018; 6020; 6022; 8018; 8020; 8022; 10020; 12018; 12022. The chain coupling composed of two-stand roller chains and two sprockets, features simple and compact structure, and high flexibility power transmission capability and durability. What's more, the chain coupling allows simple connection/disconnection, and the use of the housing enhances safety and durability.
