When it is about connecting two shafts, gear couplings become important. Without connecting two shafts with a coupling, it is simply not possible to facilitate the transmission of power and to enable rotational movement from one shaft to the other shaft.
A gear coupling is a great way of transmission of high torque at a high speed. When we talk about gear coupling it is important to know that it has two hubs along with exterior gear teeth. The two hubs again are joined by flange sleeves along with interior gear teeth. It is also vital to mention that flanges are bottled together.
Talking about teeth designs, let us tell you those three types of teeth designs are there in Gear Couplings. These are:
- Straight teeth
- Crowned with a constant radius
- Crowned with a variable radius
Now let us check out the major parts of this coupling:
- Gaskets
- O-Rings
O- Rings are an important component. It helps in the prevention of leakages of lubricant that is present inside the coupling.
Carbon Steel is the prime material that is used in making gear couplings. This is in most general-purpose couplings. However, there could be some exceptions.
The major advantage of Gear Couplings is that they can withstand some level of shock. At the same time, the major disadvantage is that it cannot deal with a large amount of shock. Hence, it has a mediocre shock absorption capability.
Why Lubrication is essential in couplings?
To keep the coupling in good condition, lubrication must be done from time to time. Lubrication has to be done at regular intervals. This interval will vary from 1-2 years. This variation will depend upon what type of lubricant is used and also what kind of duty the machine performs. Lubrication is done to keep couplings in good condition. When lubrication is done regularly, Gear Couplings can last up to 3-5 years. In some cases, it may last for more than 5 years.
However, the sound functioning of couplings is also possible without lubrication when sleeves are made from high molecular plastic. However, these are only used in small pumps.
If the topic is about gear couplings then misalignment and its relation with gear couplings must be also explained. Angular, parallel, and axial are the three major kinds of misalignment that can be managed with gear couplings. This is because of the design that allows higher misalignment. However, it is also to be noted that when misalignment is high it will considerably shorten couplings life.
Types of Couplings – There are many other types of couplings HRC Couplings being one of the types
Major Benefits of Gear Coupling
Let us sum up some of the major benefits of gear couplings
- High Torque Density
- Easily accommodates misalignment
- High torque at high speed
Gear Couplings are used in steel and wire mills.
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