If you own a vehicle you certainly know that the motor is the driving force. But how much do you really know about the type of motor your vehicle uses. No need to know all the mechanic terms but you certainly should know the basic difference between the spur gear motors and DC planetary gear motors. The two types are not only used in vehicles, but in a variety of other industrial applications. So, if your business involves, let’s say the lifting of heavy loads, knowing that cranes use DC planetary gear motors to operate, is part of your basic mechanical literacy.
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Knowing the basic features including the advantages and disadvantages of each type of motor is vital for you to be able to choose the right one for the industrial applications on your job site, and with that to achieve optimum performance, efficiency and productivity. Read on to learn the essential information about the spur gear and DC planetary gear motors.
Spur gear motors make a good option when it comes to low-torque applications. To make it more clear, torque is the twisting force that is “responsible” for the rotation in the motor. These motors feature simpler construction and operating method, hence the limited torque. Namely, a typical spur gear motor is comprised of at least three gears, which are conjoined together in a row. The first gear rotates and transfers the load to the second one, the second gear does the same to the third gear and so on.
In the DC planetary gear motors the gears are not arranged in a subsequent order. In these motors, there’s one central gear (also known as “sun” gear), which transfers the load to the three gears simultaneously. The unique circle-like arrangement of the gears enables equal delivery of the torque to all of them, which contributes to the greater output capacity.
Steel, nickel-steel and brass are the three most commonly used materials in the manufacturing of both types of motors, while there are some planetary gear motors that are made of plastic. Usually, the material from which the gear motor is made, determines the type of applications (low-torque or high-torque) for which it can be used.
In summary, what you need to know the next time you choose gear motor for the applications on your job site is that, for low-torque and low-speed applications best work the spur gear motor. On the other side, the DC planetary motors are best choice for high-torque and high-speed applications.
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