This is one of the flexible, yet amazingly simple types of coupling with a lot of applications. The coupling is made using a coupling roller chain
and two sprockets. Its operation is very simple because the driving and driven shafts can easily be connected or disconnected using connector pins. Because the roller chain
is fully engaged with the teeth, it is possible to transfer a large torque. Besides, a small error (angular, parallel, and axial misalignment) can be allowed without affecting the torque because of the relative play between the different components of the sprockets
, the chain, and roller chain. The chain couplings are recommended for low to moderate torque and speed industrial applications. To enhance the efficiency of chain couplings, it is important to regularly lubricate them. The lubricant is brushed onto the chain and a cover used to keep it on the coupling. The chain coupling is considered safer compared to other types of couplings because it does not have protrusions. Besides, the cover helps to keep the lubricant in the coupling for greater efficiency. It also prevents the grease from scattering on your surface.