Speedo Gears PVT LTD A gear is a revolving piece of machinery with cut teeth or cogs that is designed to mesh with another toothed component to deliver torque. In layman's terms, gears are one of the most important components of every motor and machine that boost torque output by offering gear reduction and modifying the rotational direction. Transmission or inline helical gearboxes are used to describe multiple gears operating in succession. The likelihood that a geared device will alter the speed, torque, or direction of a power supply is higher.