January 30, 2023
Gear couplings refer to the three piece shaft couplings used for connecting driven and driving shafts of mechanical power transmission assemblies. They help in countering the inevitable misalignment occurring between the two connected shafts.
Gear couplings comprise of identical right and left external toothed elements connected with an internal tooth sleeve consisting of matching number of teeth. Most of the times the elements are made of steel, though nylon is also used in some cases for making the sleeve. Different gear couplings follow different designs. Some use split sleeve and a flanged design bolted during installation. In order to transmit more power between the flanges or transfer friction between adjoining faces of the flange, special coupling bolts are used. The bolt heads are either exposed or shrouded along with a coupling guard.
For the correct functioning of the gear coupling, there needs to be some clearance maintained between external tooth element faces. To avoid premature failure of the coupling due to deprivation of oil, they need lubrication at regular intervals along with shaft seals to keep the same in place. In addition, special grease is needed for preventing oil and soap due to centrifugal effect. One of the main advantages of gear couplings over other designs is their tolerance for axial growth. Another important attribute of these is the distance between shaft ends of driving and driven equipment.
Following are the important attributes and specifications of the gear couplings:
In this article, we have discussed the design, attributes and specifications of the gear couplings just briefly. For more information regarding customized options available, it is best to contact your nearest gear coupling manufacturers.