How should a DC motor be chosen for a certain application? When it comes to motor selection, there are a few factors to consider.
We all know that electric motors turn electrical energy into mechanical energy, but there are several types available on the market. With our Tips for Motor Choosing Tips, we want to keep you focused and moving in the right path throughout the motor selection process. We are here to get your next project "moving" as world-class DC Motor and Gear Motor design specialists. Our staff of professional application engineers is here to help and answer any queries you may have give us a call.
Determine your speed, torque, and voltage
Voltage, speed, and torque are the three most important characteristics to understand for any DC motor application. Once you've identified these factors, you're ready to go on your quest to find the best motor option. The trick is to utilize a motor that is at or near its peak efficiency. At the commencement of the motor selection procedure, the motor voltage should also be determined. Your electrical power source, such as a 12-Volt battery or power supply, will influence motor voltage. DC motors generally have a nominal voltage of 12 or 24VDC.
For every motion control application, the rotational speed is critical. The rated or on-load motor speed is the speed at which a DC motor operates once a load is applied. It is critical to understand the constant and maximum speeds at which the motor must work. Motor torque is the amount of load that the motor's output shaft can withstand at any given time. A motor's torque and speed are intimately connected; as one rises, the other lower. The rated torque, or on-load torque, must be specified in the same way as the speed. The stall torque or peak torque of the motor is another significant feature of torque.
The easiest way to understand the connection between torque and speed is to examine a motor's performance curve, which is usually included in the motor specification. It is critical to pick a motor or brush DC gear motor that satisfies both your speed and torque requirements when choosing an efficient motor for your application.
Consider Size vs. Performance
Proper motor size is vital for all applications, but it may become a problem when a specific level of performance is needed. Larger motors are often more powerful than smaller versions. Depending on the needs of your application, you may have to compromise some performance aspects to assist satisfy the size limits. There are countless choices for meeting the size limits for the majority of applications by employing various kinds of motors and motor technology, such as brushless motors or motors with permanent magnets.
Brush DC gear motors provide more torque
Sometimes you need more torque than a conventional DC motor can physically provide. Using a brush dc gear motor will result in higher torque and decreased speed, depending on the gear ratio employed. Gear motors are classified into three types: spur gear motors, planetary gear motors, and worm gear motors. Each style of gearhead has specific benefits. Stepper motors, brushless DC motors, and brushed DC motors may all be outfitted with a gearhead. Check out our design note: Planetary Gear Motors vs. Spur Gear Motors to understand more about the distinctions between the various gear motor types.
Establish your Duty Cycle
Your application's or gadget's duty cycle will determine which motor type is ideal. The operating and dwell durations, as well as the directional rotation, are critical components of your duty cycle. At the start of the motor selection procedure, the duty cycle should be determined. Most industrial applications recommend intermittent duty cycles to assist increase the usable life of a motor or gear motor. Continuous usage is still permissible, but you must ensure that the motor is working at maximum efficiency.