– Cost-effective compared to other couplings.
– Simple construction.
– Consists of only two parts: the sleeve and key.
Unsuitable for misaligned shafts.
– Difficult to assemble and dismantle.
– Limited ability to absorb shocks and vibrations due to its rigid design.
In this type of coupling, the muff or sleeve is not a single piece but rather made up of two semi-cylindrical parts constructed from cast iron. One part is fitted from above the shaft, while the other is fitted from below. These two parts are joined together using bolts or studs, with two, four, or six holes provided to secure the muff.
– The main advantage is the ability to assemble and dismantle without changing the shaft position.
In flanged couplings, two flanges are brought together and fitted. Both flanges feature the same number of threaded holes, which are used to fasten them using nuts and bolts. A gasket is employed to prevent leakage. Flanged couplings find widespread use and are suitable for medium to heavy-duty applications. To ensure a secure connection with no slippage, a tapered key is utilized.
Similar to flanged couplings, flexible couplings incorporate rubber bushings along with nuts and bolts. The rubber bushing, designed with appropriately sized holes, provides enhanced strength to absorb shocks and vibrations more effectively than flanged couplings. Additionally, it accommodates slight misalignments between the shafts.
Oldham couplings consist of two flanges connected by a middle plate. The key advantage of Oldham couplings is their ability to accommodate high parallel misalignment.
Although the angle may remain constant, it can change during operation. The primary application of universal couplings is in heavy vehicles
Gear coupling is a specific type of coupling that falls under the category of flange couplings. It differs from standard flange couplings as it comprises separate parts, namely the flange and the hub. It finds application in heavy-duty scenarios where robustness is essential.Gear couplings are particularly suitable when there is an angular displacement of 4 to 5 degrees in the shafts. Generally, they have a 1:1 gear ratio between the internal and external gears.
Fluid coupling involves connecting one shaft to the power supply and the other to the power generator shaft. It consists of a pump connected to one shaft and a turbine connected to the second shaft. Over time, the speed of the pump impeller and the turbine equalize, resulting in power transmission.