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Gear Couplings belong to the category of flexible couplings that are capable of transmitting very high torques. It is a mechanical device for transmitting torque between two shafts that are not collinear. Constructionally the gear coupling utilizes the advantages of gear engineering; practically the coupling is a complete gear assembly.
- The gear couplings consists of a forged sleeve with internal teeth cut on its inside. The forged sleeves are normally two halves possessing internal gears in both of them. In certain cases the forged sleeve tends to remain a single piece.
- Two hubs with external teeth containing the same number of teeth as in the internal gear is present with each one being mounted on the driven and driver shaft respectively. The tooth profile of the external teeth is normally crowned in order to take up more loads.
- The entire assembly in normally enclosed and is provided with gaskets at the joints and O-rings at vantage points in order to prevent the leakage of the lubricant filled inside the coupling.
- Lubrication plugs are provided at vantage points in order to lubricate the couplings during predetermined intervals of time.
