Sprockets are widely used in various mechanical systems and machinery. They are basically toothed wheels that are used to transmit power and motion. Sprockets are available in different types, shapes, and sizes for various applications. Some commonly used synonyms for sprockets are gears, cogwheels, pulleys, sheaves, belt wheels, timing wheels, and chain wheels. Each of these synonyms refers to a specific type of sprocket used for different purposes. While gears are used for transmitting torque at an angle, cogwheels are used to transmit power at a right angle. Pulleys and sheaves are used to transmit power through a system of belts and ropes, while timing wheels and chain-wheels are used in timing and chain drive applications.