Flexible couplings are used to transmit torque from one shaft to another when the two shafts are slightly misaligned. The first is to transmit power (torque) from one shaft to the other, causing both to rotate in unison, at the same rpm. Flexible couplings are designed to accommodate various types of load conditions.
Serpentine Spring Rigid Shaft Grid Coupling With Brake
The compliant member can be an elastomer and even some soft or springy metal.
The second is to compensate for minor amounts of misalignment and random movement between the two shafts.
Flexible couplings with elastic an element: Flexible disc couplings can be used in a wide variety of applications from general industrial equipment to high speed precision machines. The elements used have the capacity to absorb the shock loads and the vibrations. The jaw coupling is a material flexing coupling that transmits torque thru compression of an elastomeric spider insert placed between two intermeshing jaws.
Some of the applications in which flexible disc couplings can be used are:
The choice of couplings available to today’s engineers can be daunting, but follow our guide;lines and you will arrive at the optimum coupling for your particular application. They are one of the most versatile coupling designs and can be customized to meet the demands of almost every application. The power transmission is made by an elastic element placed between either hubs or flanges. The purpose of a flexible coupling is to transmit torque from one piece of rotating equipment to another, while accepting at the same time a small amount of misalignment.
No one type of coupling can provide the universal solution to all coupling problems;hence many designs are available, each possessing construction features to accommodate one or more types of application requirements.
Actual misalignment, expressed in coupling terms, is angular in nature and expressed in angular units,. We have already discussed that a flexible coupling is used to join the abutting ends of shafts when they are not in exact alignment. The power transmission is done from one shaft to the other shaft by means of a key and a sleeve. Flexible couplings for corrugated pipe connect drainage or irrigation system tubing to pvc sewer piping quickly and securely.
Flexible coupling misalignment is expressed, as an order of magnitude, in thousandths of an inch.
Flexible types of couplings are used to connect two shafts that have both lateral and angular misalignment. These are torsional stiffness, backlash, torque, life and attachment system. Flexible couplings are usually used to transmit torque from one shaft to another when the two shafts are slightly misaligned. Flexible couplings are used to transmit torque from one shaft to another when the two shafts are slightly misaligned.
They compensate misalignments, movement or deflection.
Flexible couplings are the coupling device used for the flexible connection. This is another category of coupling. In addition, they can also be used for vibration damping or noise reduction. Examples of rigid coupling muff coupling, clamp coupling, rigid flange coupling etc.
It has flexible connection allowing the misalignments.
As name suggest it has flexible connection between the input and the output shaft because it is very difficult to make a proper aligned connection between the two mating shafts and there are various reasons for the misalignment between the two shafts such as deflection of shafts, thermal expansions etc. The power transmission is totally made by metallic compounds. They can accommodate varying degrees of misalignment up to 1.5° and some parallel misalignment. The body of a pipe coupling (coupler) is typically made of either the same or similar materials as that of the pipes it joins.
They are very useful when having quick and short starts.
All of these have bearing on coupling selection. Bellow couplings represent one type of. Flexible couplings are generally two hubs connected by a compliant member. Flexible couplings can accommodate varying degrees of misalignment up to 3° and some parallel misalignment.
Flexible couplings can accommodate varying degrees of misalignment up to 3° and some parallel misalignment.
Flex element is commonly made of nbr, polyurethane, hytrel or bronze It is fixed over the ends of the two shafts with the help of a gib head key. Muff coupling is consists of a shaft, key, sleeve or muff, and a hollow cylinder whose inner dia is the same as that of the shaft. They may be rigid or flexible depending on the amount of movement the pipe is subjected to and may also be permanent or removable.
