The single ratio gearbox motor shown opposite is suitable for model and light industrial applications and has a gear ratio of 100:1 - Leaving Cert Engineering - Question d - 2022

A gear ratio of 100:1 signifies that for every 100 revolutions of the motor's input shaft, the output shaft will complete 1 revolution. This high gear reduction increases the torque output of the motor while reducing its speed. Therefore, the motor can drive heavy loads effectively, making it suitable for applications requiring substantial torque. In simple terms, a 100:1 gear ratio means that the motor trading speed for added torque, allowing it to perform tasks that would require more strength than the motor could provide without the gearbox.