Chain Coupling and Sprocket Applications and Maintenance

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Sprocket Applications

Chain coupling is the mechanical component that facilitates the direct linking of two axles for the transmission of revolving power. Chain couplings are 3-piece shaft couplings that are used by transmission parts manufacturers like EED Xinda Machinery to connect the driving and driven shafts in power transmission assemblies. In general, the cost of operating chain couplings is low.

A chain coupling package consists of two sprockets (hubs) and a coupling chain. This is similar to a double roller chain strand and a cover. However, although not all applications utilize a cover, for coupling life and safety, they are recommended. Flexible shaft couplings are employed to counter the misalignment that inevitably occurs between any two connected shafts.

Chain coupler sprockets are available sized in 2-tooth intervals designed to match the roller chain links and the pitches are based on the ANSI standards (#40, #60, and #80). The manufacturer will ordinarily select the suitable chain coupler sprocket size and pitch depending on the given torque requirements. However, knowing the sprocket pitch makes it possible to pick a suitable replacement chain if the need ever arises.

Chain Coupler Sprocket Applications

Chain couplings are typically low speed, high torque applications.  They are designed to accommodate 2 degrees of misalignment between two shafts. Flexible shaft couplings may be utilized to cancel out the inevitable misalignment that happens between connected shafts. 

Chain couplings from EED Xinda Machinery are an economical way to transmit power between shafts. Chain couplings will generally be installed off the end of a gearbox (reducer) or motor and utilized to link with a machine for efficient transmission of power. They are recommended when you want power transmitted between two shafts.

To create continuous loops, chains are connected with master links and pins. The links stay in contact with the chain sprocket teeth around the entire sprocket perimeter. Side clearance between teeth and chain allow for misalignment between the coupled shafts.

EED Xinda Machinery offers many types of chains and chain coupler sprockets with a variety of designs and materials to suit different kinds of facilities depending on the working environment. These products have been developed after years of intensive research, field testing, and actual practical operation.

Chain Couplings Maintenance

Chain coupler sprocket and chains are an economical coupling method favored by transmission parts manufacturers and have been used for many years.  Although not always needed, a cover should ideally be utilized to assure maximum service coupling life, especially if the coupling operates under moist conditions or at high speeds. To achieve proper lubrication, the space between the coupling and the cover should be filled with soft consistency bearing grease.

To specify a chain coupling, you need to know the required bore to calculate the transmitted torque. You then apply a multiplier supplied by the transmission parts manufacturer that rates the service severity, typically by machine type. However, often, manufacturers have on-line calculators that help in selecting couplings.

It is essential to note that chain couplings are less adept at coping with shock loads than other than what is exerted by the couplings. Manufacturers like EED Xinda Machinery generally recommend you step up to the next coupling size if you expect severe shock conditions.