Helical gearboxes are commonly used in industrial robots for reducing the speed of the motor and increasing the torque output of the gearbox. Helical gearboxes are advantageous because they offer high efficiency, smooth and quiet operation, and can handle high loads. In industrial robots, helical gearboxes are often used in the robot's joint modules, where they help to achieve precise and smooth movement. Helical gearboxes are also used in the robot's end effectors, where they help to transmit the high torque required to grip and manipulate objects. Overall, helical gearboxes are an excellent choice for industrial robots that require high precision, high torque, and smooth operation.