A slotless DC motor is a type of DC motor that does not have slots or teeth on the stator. To choose and use a slotless DC motor, you need to consider several factors, such as the speed, torque, power, voltage, current and size of the motor. You also need to select a suitable controller and feedback device to control the speed and position of the motor. You can connect the slotless DC motor to a load with a coupling or a belt.