When a key is provided with the half portion in the shaft and the other half portion in the hub, then the key is known as the Sunk Key. Different types of Keys in Machine Designīased on the shape and key accommodation, following are the different types of keys in machine design. There are different types of the keys available. These keys are temporary fastening elements and are subject to the crushing and the shearing stress. The key will have a provision in both the shaft and the machine element which needed to be connected. In this article, we are going to discuss what are the different types of Keys in machine design.Īs we said above Key is a part of a machine or equipment where it is used to connect the rotating machine element(Hub/Pulley) to the shaft and enables the torque transmission. In mechanical engineering, Key is a part of a machine or equipment where it is used to connect the rotating machine element to the shaft and enables the torque transmission.
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