Before understanding types of couplings, let us know couplings in general. We must develop a basic understanding of what we are dealing with.
Couplings are such an important invention and the way it has helped the mechanical industry is tremendous. From the time of Oldham, the man who invented coupling called Oldham couplings in the early 19th century, many have been discovered and developed. One such is Single Coupling.
So, what is a coupling?
Simply, it can be defined kind of connector. But what does it connect? Well, it combines two shafts. Not only in connect two shafts, but it also makes torque and power transmission possible through it.
Couplings are very important. A shaft is never beyond 7 meters. When the transmission is to be done beyond 7 meters, then more than two shafts are required. These shafts cannot be connected unless there are couplings. Hence, you know how important couplings are. Without it, a lot of important projects would have ceased to even take off. Whether Single Coupling or other, it is important that we have a basic knowledge of all, to use the best one in different situations.
Now, you must be thinking, cannot there be a long shaft? That way, there won’t be any need for coupling. Well, that is an intelligent question. However, that is not possible and couplings become really important.
You ask why? Well, here is why:
It is not possible to assemble any machine with a single shaft. Power transmission is an important part of, and this is possible only with couplings. So, for the sake of power transmission, we must have couplings.
How Couplings are a boon to Mechanical Industries?
- It introduces mechanical flexibility. Apart from single coupling, there are flexible coupling which gives higher mechanical flexibility.
- If the connected shafts fall in misalignment, then you do not worry as couplings are the best solution here, and they will cover for it.
- Shocks are not a good thing for machines. Couplings are instrumental in reducing and controlling the transmission of shock from shaft to shaft.
- Overloads may happen anytime. In such cases, too, couplings are the preventer.
- Changing the vibration characteristics of rotating members is another important feature that we cannot overlook.
Now, not all couplings are good couplings. To tell a good coupling apart, we must know some of the things about it:
Dismantling and assembling are the two major things that happen with machines of all types. When we talk of couplings, it goes without saying that it should be easy to both dismantle and assemble. A coupling that does not have this ease then it is not good as a product. The same is applied to single coupling.
One of the prime functions of couplings is to transmit power. This must be done with a 100% efficiency without any power losses in the process.
Alignments are important for the shafts to operate well, and this alignment must be brought in with quality and well-manufactured couplings.
The physical appearance of the coupling plays an important role in making it efficient. Coupling should not have projected parts. If it has, it should be minimum.
Are you looking for couplings? Well, here are some more points that you may consider to develop a better understanding of couplings. Look for these when buying couplings:
Durability and Reliability
These two are important factors. And the only way to ensure it is to buy couplings from a good brand. So, if you are looking for single coupling then look for it at places with an established reputation.
Operation of torque and shaft’s speed
These two factors are very important and it is based on this that coupling has to be selected.
Rotation Direction and Cyclic operation
Make sure you get to know the answers to these questions. These will play an important role in finding out more about the coupling you have got to go for. For single coupling also you must be informed of such details.
There are primarily two kinds of couplings. Here they are:
- Rigid Coupling
- Flexible Coupling
Rigid Couplings and its types
When we talk about rigid couplings, there are three main types of couplings
- Sleeve couplings
- Clamp Coupling
- Flange Coupling
Flexible Couplings and their types
When we talk about flexible couplings, there are three main types of couplings.
- Oldham’s Couplings
- Universal coupling
- Bushed pin-type Coupling
Comparison of Rigid Coupling and Flexible Coupling
Let us have a brief look at the comparison of rigid coupling and flexible coupling.
The major difference entirely depends on the shafts. When shafts are perfectly aligned, then rigid couplings are used. On the other hand, when there is a slight misalignment in shafts, flexible couplings will trick.
Hope you have developed a good understanding of couplings. We must have some knowledge about machines even when we are not dealing with them directly. Couplings are an indispensable part of many types of industries.
You may consider checking out Thompson Coupling’s Compression Coupling Copper.