Warranty: 3months-1year
Model Number: GMP28-M365/385/395
Usage: Home Appliance, Shunli motor customized 12v 24v 28mm planetary gearbox match pmdc motor
Type: GEAR MOTOR
Torque: 0.5~2.0 N.m
Construction: Permanent Magnet
Commutation: Brush
Protect Feature: Totally Enclosed
Speed(RPM): can be custom
Continuous Current(A): 0.7-2.5mA
Efficiency: 71%
shaft: customized
Customized service: yes
brush: Carbon brush or Metal brush
End play: 0.05-0.35mm
Rated Voltage: 6v/12V/24V
Main Gear: Alloy steel
Directions: CW/CCW
Reduction ratio: 3.4k~2142k
Name: 28mm planetary dc motor
Certification: ce
Packaging Details: Poly foam inside, strong export carton box outside, with pallet, or as the customer wished.Shunli motor customized 12v 24v 28mm planetary gearbox match pmdc motor

Product Details

Motor Customized Specification, Please Contact Us.

Reference Drawing

—— GMP28 Series (Brush Type)

BLDC MOTOR Terminations
PIN NO. :PIN Arrangement1VCC2FG3CW/CCW4GND5PWM
Reference Datasheet
Gearmotor ModelRatioRated Voltage (V)No-LoadRatedStallSpeedCurrentSpeedCurrentTorqueCurrentTorqueRPMmARPMmAmN.m / gf.cmmAN.m / Kgf.cmGMP28M365-126K1:12612V90
≤26072≤7200.36/3.6≤28001.8/18GMP28385-11.2K1:11.2885≤20571≤7500.06/0.6≤48000.45/4.5GMP28M395-264K1:26428≤18571.5≤5001.5/15≤23506.0/60
Number of stages12345Ratio3.4k/4.6k 11.2k/15.5k/
21.5k
37.7k/52k/
72k/100k
126k/175k/
242k/334k/462k
424k/568k/810k/
1120k/1549k/2142k
Gearbox Length “A”(mm) 21.7 27.4 33.2 39 44.8Max. Rated Torque 5.0Kgf.cm 10.0Kgf.cm 20.0Kgf.cm 20.0Kgf.cm 20.0Kgf.cmMax. Gear Broke Torque 15.0Kgf.cm 30.0Kgf.cm 60.0Kgf.cm 60.0Kgf.cm 60.0Kgf.cmGearbox Efficiency 85%~92% 75%~85% 65%~75% 55%~65% 45%~55% Motor Performance Curves

Certifications
Company InformationWhy do you choose us:
1. Our Company
We are a factory specialize in producing motors more than 14 years, and we have 3 factories, respectfully local in HangZhou, HangZhou, HangZhou brings you a pleasant shopping experience.
2.Quality control
In order to confirm quality,from we receive material to shipment to be carefully checked every step of the way.

FAQ1.Q: Are you trading company or manufacturer?A: We’re factory. We specialize in micro dc motor and dc gear motor for more than 14 years.2.Q: What is the payment term for a new customer?A: We can draw up an Ali Assurance Order Online for our new customer, which can pay online with Master Card, Visa, etc.3.Q: I can’t find a suitable motor on your website, can you customize the motor for me?A: Yes, we can customize a suitable motor according to our customer’s requirements.4.Q: Do you have certificates for the motors?A: Yes, we have CE, FCC, ISO, etc. If you have the other certificates requirement, we can apply it for you.Recommend Product
Contact UsLooking forward to your feedback!
—————————Shunli Motor
HangZhou Shunli Motor Co., Ltd

Benefits of a Planetary Motor

If you’re looking for an affordable way to power a machine, consider purchasing a Planetary Motor. These units are designed to provide a massive range of gear reductions, and are capable of generating much higher torques and torque density than other types of drive systems. This article will explain why you should consider purchasing one for your needs. And we’ll also discuss the differences between a planetary and spur gear system, as well as how you can benefit from them.

planetary gears

Planetary gears in a motor are used to reduce the speed of rotation of the armature 8. The reduction ratio is determined by the structure of the planetary gear device. The output shaft 5 rotates through the device with the assistance of the ring gear 4. The ring gear 4 engages with the pinion 3 once the shaft is rotated to the engagement position. The transmission of rotational torque from the ring gear to the armature causes the motor to start.
The axial end surface of a planetary gear device has two circular grooves 21. The depressed portion is used to retain lubricant. This lubricant prevents foreign particles from entering the planetary gear space. This feature enables the planetary gear device to be compact and lightweight. The cylindrical portion also minimizes the mass inertia. In this way, the planetary gear device can be a good choice for a motor with limited space.
Because of their compact footprint, planetary gears are great for reducing heat. In addition, this design allows them to be cooled. If you need high speeds and sustained performance, you may want to consider using lubricants. The lubricants present a cooling effect and reduce noise and vibration. If you want to maximize the efficiency of your motor, invest in a planetary gear hub drivetrain.
The planetary gear head has an internal sun gear that drives the multiple outer gears. These gears mesh together with the outer ring that is fixed to the motor housing. In industrial applications, planetary gears are used with an increasing number of teeth. This distribution of power ensures higher efficiency and transmittable torque. There are many advantages of using a planetary gear motor. These advantages include:

planetary gearboxes

A planetary gearbox is a type of drivetrain in which the input and output shafts are connected with a planetary structure. A planetary gearset can have three main components: an input gear, a planetary output gear, and a stationary position. Different gears can be used to change the transmission ratios. The planetary structure arrangement gives the planetary gearset high rigidity and minimizes backlash. This high rigidity is crucial for quick start-stop cycles and rotational direction.
Planetary gears need to be lubricated regularly to prevent wear and tear. In addition, transmissions must be serviced regularly, which can include fluid changes. The gears in a planetary gearbox will wear out with time, and any problems should be repaired immediately. However, if the gears are damaged, or if they are faulty, a planetary gearbox manufacturer will repair it for free.
A planetary gearbox is typically a 2-speed design, but professional manufacturers can provide triple and single-speed sets. Planetary gearboxes are also compatible with hydraulic, electromagnetic, and dynamic braking systems. The first step to designing a planetary gearbox is defining your application and the desired outcome. Famous constructors use a consultative modeling approach, starting each project by studying machine torque and operating conditions.
As the planetary gearbox is a compact design, space is limited. Therefore, bearings need to be selected carefully. The compact needle roller bearings are the most common option, but they cannot tolerate large axial forces. Those that can handle high axial forces, such as worm gears, should opt for tapered roller bearings. So, what are the advantages and disadvantages of a helical gearbox?

planetary gear motors

When we think of planetary gear motors, we tend to think of large and powerful machines, but in fact, there are many smaller, more inexpensive versions of the same machine. These motors are often made of plastic, and can be as small as six millimeters in diameter. Unlike their larger counterparts, they have only one gear in the transmission, and are made with a small diameter and small number of teeth.
They are similar to the solar system, with the planets rotating around a sun gear. The planet pinions mesh with the ring gear inside the sun gear. All of these gears are connected by a planetary carrier, which is the output shaft of the gearbox. The ring gear and planetary carrier assembly are attached to each other through a series of joints. When power is applied to any of these members, the entire assembly will rotate.
Compared to other configurations, planetary gearmotors are more complicated. Their construction consists of a sun gear centered in the center and several smaller gears that mesh with the central sun gear. These gears are enclosed in a larger internal tooth gear. This design allows them to handle larger loads than conventional gear motors, as the load is distributed among several gears. This type of motor is typically more expensive than other configurations, but can withstand the higher-load requirements of some machines.
Because they are cylindrical in shape, planetary gear motors are incredibly versatile. They can be used in various applications, including automatic transmissions. They are also used in applications where high-precision and speed are necessary. Furthermore, the planetary gear motor is robust and is characterized by low vibrations. The advantages of using a planetary gear motor are vast and include:

planetary gears vs spur gears

A planetary motor uses multiple teeth to share the load of rotating parts. This gives planetary gears high stiffness and low backlash – often as low as one or two arc minutes. These characteristics are important for applications that undergo frequent start-stop cycles or rotational direction changes. This article discusses the benefits of planetary gears and how they differ from spur gears. You can watch the animation below for a clearer understanding of how they operate and how they differ from spur gears.
Planetary gears move in a periodic manner, with a relatively small meshing frequency. As the meshing frequency increases, the amplitude of the frequency also increases. The amplitude of this frequency is small at low clearance values, and increases dramatically at higher clearance levels. The amplitude of the frequency is higher when the clearance reaches 0.2-0.6. The amplitude increases rapidly, whereas wear increases slowly after the initial 0.2-0.6-inch-wide clearance.
In high-speed, high-torque applications, a planetary motor is more effective. It has multiple contact points for greater torque and higher speed. If you are not sure which type to choose, you can consult with an expert and design a custom gear. If you are unsure of what type of motor you need, contact Twirl Motor and ask for help choosing the right one for your application.
A planetary gear arrangement offers a number of advantages over traditional fixed-axis gear system designs. The compact size allows for lower loss of effectiveness, and the more planets in the gear system enhances the torque density and capacity. Another benefit of a planetary gear system is that it is much stronger and more durable than its spur-gear counterpart. Combined with its many advantages, a planetary gear arrangement offers a superior solution to your shifting needs.

planetary gearboxes as a compact alternative to pinion-and-gear reducers

While traditional pinion-and-gear reducer design is bulky and complex, planetary gearboxes are compact and flexible. They are suitable for many applications, especially where space and weight are issues, as well as torque and speed reduction. However, understanding their mechanism and working isn’t as simple as it sounds, so here are some of the key benefits of planetary gearing.
Planetary gearboxes work by using two planetary gears that rotate around their own axes. The sun gear is used as the input, while the planetary gears are connected via a casing. The ratio of these gears is -Ns/Np, with 24 teeth in the sun gear and -3/2 on the planet gear.
Unlike traditional pinion-and-gear reducer designs, planetary gearboxes are much smaller and less expensive. A planetary gearbox is about 50% smaller and weighs less than a pinion-and-gear reducer. The smaller gear floats on top of three large gears, minimizing the effects of vibration and ensuring consistent transmission over time.
Planetary gearboxes are a good alternative to pinion-and-gear drive systems because they are smaller, less complex and offer a higher reduction ratio. Their meshing arrangement is similar to the Milky Way, with the sun gear in the middle and two or more outer gears. They are connected by a carrier that sets their spacing and incorporates an output shaft.
Compared to pinion-and-gear reduces, planetary gearboxes offer higher speed reduction and torque capacity. As a result, planetary gearboxes are small and compact and are often preferred for space-constrained applications. But what about the high torque transfer? If you’re looking for a compact alt