What is Planetary Gear Motor?
What is Planetary Gear Motor?
Planetary gear motor consist of DC motor and planetary gearbox. DC motor is the high speed electronic motor. The Planetary gearbox is the transitional mechanical system of speed reducer, including sun gear, planet gear, ring gear inside of gearbox. The planetary gearbox reduce the high speed supplying from DC motor via ratio, and outputs low speed on output shaft. This DC planetary gear motor is used for various automatic products, intelligent products, home smart, robot, etc. The planetary gearbox consists of a sun gear, planetary gears, a ring gear and a carrier. The input shaft drives the sun gear to rotate it. The planetary gears mesh with the sun gear and rotate on their axes as the sun gear rotates. The planetary gear also engages the stationary ring gear, causing the planetary gears to rotate around the sun gear. The carrier holds the planetary gears together and sets their spacing. It rotates with the planetary gears and combines with the output shaft.
What is planetary gearbox?
Planetary gearbox that is planetary Reducer gearbox also called gear box. Its structure is a mechanism that a number of planetary gears rotate around a sun gear. The transmission speed ratio is reduced, but at the same time the motor torque is increased proportionally.
The main transmission structure of the planetary gearbox is planet gear, sun gear, ring gear, drive motor, transmission shaft.

From the appearance, Planetary gearbox can be divided into three sections: input section, reduction section and output section. Input section: The input section refers to the core section of the reducer, which looks like a box from the outside, but actually contains many core components, such as planetary gears, sun gears, and ring gear.

Output section: Output section refers to the end connected to the equipment, including the output shaft and output flange.
Grease as lubricant in planetary gearboxes
As we known, The gears must be lubricated to run smoothly during transmission. It is grease as lubricant used for planetary gearboxes. The use of grease has a good effect and many benefits on the rotation of planetary gears. Let's talk about a few direct benefits.First: grease can reduce the noise generated by the gearbox, which is important for products which require low noise. Second: Increase the life span. The use of grease makes the wear between the gears lower, so that the gears are not so easy to Broken. The construction of planetary gearboxes keeps the grease not decreasing, which makes the life of planetary gearboxes longer than other gearboxes.
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DONGMING MOTOR specializes in automatic door operator motors and gear motors. We have provided DC gear motors for the commercial automatic door operator industry for years and our success lies in our long-standing focus on quality and value. We focus on four commercial door operator applications: Slide Door Operators Swing Door Operators Overhead Door Operators Revolving Door Operators Slide Door Operators Electric sliding doors found in public buildings are designed to add customer convenience. Electric sliding doors on elevators are a requirement. Both types of electric sliding doors must operate quietly and efficiently, relying on the power behind its electric gear motor inside. Typical electric sliding doors are interior doors and may not need the IP ratings of exterior door use. Swing Door Operators Hospitals, clinics and retail locations will typically use an electric swing door. A rugged and durable gear motor that is quiet in operation is just as important as its longevity. Power Electric ensures the highest quality, durability and reliability and we work to continuously maintain and improve. Overhead Door Operators Also commonly referred to as garage door openers, we focus on commercial-grade operators for motor and gear motor applications. Motors and gear motors for these heavy doors must operate with precise torque and efficiency, be extremely reliable and durable and able to withstand environmental demands. Learn more on IP Ratings to discover what it means and contact us to discuss what’s right for your needs. Revolving Door Operators Electric revolving doors save energy by reducing the drafts of air that escapes through swing or slide doors. These types of doors also improve traffic flow in commercial areas. Revolving doors must be powered by a gear motor that meets energy efficient standards as well as have a long lifespan. Contact us to talk through how your revolving door operators can benefit from housing a Power Electric-sourced gear motor. DONGMING MOTOR works with automatic door operator equipment companies throughout the world, assisting customers with motor and gear motor solutions for their projects. Connect with our in-house engineering experts for custom electric motors or find support choosing the right product for your electric door operator applications by calling 86-755-2973-5896.
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