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Know the Different Kinds of Flexible Couplings and Their Functions

It cannot be avoided for two shafts to slightly misalign, and when this happens, the use of flexible couplings is the solution so that the torque from one shaft to another will be transmitted and fixed. The use of flexible couplings can also solve vibration damping and will minimize noise of your equipment or machine. This is because the design of the coupling allows limitation of angular movement of axes between two waveguides.

A given equipment sometimes have situations when its two shafts are misaligned. In this case, flexible couplings are advisable to use so that there is transmission of torque from one shaft to another. Know that these couplings in cases of misalignments, these couplings can accommodate the difference of degrees for up to 3 degrees approximately. Other benefits in putting these couplings are to reduce noise and vibration damping of your equipment or machineries.

Couplings have three basic functions, and these are to transmit power, to compensate for axial displacement or end movement, and to accommodate misalignment.

In the transmission of power function, couplings can transmit mechanical power from one device to the next. This is done in the form of mechanical torque displayed at certain speed. A coupling may lost some power in small quantity but its efficiency is better than the others.

The design of couplings are such that it can compensate axial displacement or end movement of shafts or equipment. You do not need to apply any irregular loads in your equipment to produce the end movement and accommodate misalignment. As you install the couplings, it is very important to note an alignment of shaft ends and machines. This will allow the coupling to provide thermal growth of the whole device.

The function to accommodate misalignment has two sub-functions, and these are shaft misalignment and coupling misalignment. With shaft misalignment, how the driven shafts and the driver work together are taken care of, and here, there are two categories further classified such as the angular misalignment and the parallel offset. On the other hand, when the coupling needs to accommodate situation of shaft misalignment, coupling misalignment is the solution. There are two general approaches when it comes to coupling misalignment, and these are the double flex coupling and the elastomeric coupling.

Know that flexible couplings are made up of several materials that includes rubber, metal, and PVC, with each belonging to a pipe system. Couplings are best in cases of unusual angles and tight spaces, and whether it is for plumbing or ventilation.

Flexible Coupling comes in different types, and these are the plastic drain connectors, jaw couplings, rubber coupling and the flexible ventilation duct coupling. For bathroom sink and kitchen fixtures, you can use flexible plastic drain connectors. With jaw coupling, there is a locking ring that can secure a split insert. On the other hand, the coupling that is useful in pluming applications in the installation and repair of drain, vent and waste lines is the flexible rubber coupling. It comes in straight cylinder, bent at 90 or 180 degree angles. To manage unusual turns and twists in your heating, ventilation and exhaust systems, you can use the flexible ventilation duct coupling.

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