Comparison Between Keys and Cotters

The main difference between keys and cotters are as follows: (a) Keys are driven parallel to the axis whereas cotters are driven perpendicular to the axis. (b) Keys are used in parts subjected to torque whereas cotters are used in parts subjected to tensile or compressive force. (c) Keys resist shear over a longitudinal section whereas cotters resist shear over two transverse sections. Cotter Joints Cotter joints are used to connect together two rods rigidly to transmit power in the length-wise direction. Sometimes when it is required to increase the…

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