Automatic Power Transmission Gear Reducer Planetary Speed Reduction Gear Motors 4mm

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Planetary Gear Boxes

Workpiece material Density (grams/cc) Yield strength (psi) Tensile strength (psi) Hardness (HRC)
Iron 5.2 to 7.0 5.1*103 to 2.3*104 7.3*103 to 2.9*104 40 to 70
Low alloy steel 6.3 to 7.4 1.5*104 to 2.9*104 2.00*104 to 4.4*104 60 to 100
Alloyed steel 6.8 to 7.4 2.6*104 to 8.4*104 2.9*104 to 9.4*104 60 and up
Stainless steel 6.3 to 7.6 3.6*104 to 7.3*104 4.4*104 to 8.7*104 60 and up
Bronze 5.5 to 7.5 1.1*104 to 2.9*104 1.5*104 to 4.4*104 50 to 70
Brass 7.0 to 7.9 1.1*104 to 2.9*104 1.6*104 to 3.5*104 60


Product name Powder metallurgy precision planetary gearboxes for machines
material metal alloy, Iron , stainless steel , brass
process Metal injection molding , powder metallurgy
Surface treatment Polishing , plating ,sand blasting , PVD , coating
Tolerance ±0.3%
Drawing format DWG ,IGS , STP

Planetary Gear Boxes Image


What is Planetary Gearboxes?

Planetary gearboxes are the most common kind of industrial gearbox that is used in a variety of industries. They offer a high degree of efficiency and provide more efficient ratios of transmission than other kinds of gearboxes.

They are also light and have higher torque transmission capacity than other gearboxes. This makes them more suitable for projects that demand a huge quantity of power in a smaller spaces for construction.

High Efficiency

Planetary gearboxes feature a high power density due to the fact that they utilize multiple gears to distribute the burden. This boosts their efficiency, making the gearboxes ideal for use in applications that require speedy transfer energy.

Another benefit of the planetary gearboxes is their small design. They weigh up to 50percent less weight than conventional gears, which lowers the cost of installation and guarantees an efficient and reliable performance.

They also offer a wide variety of ratios of speed and can accurately adjust the power and torque delivered. This makes them suitable for use in a range of different applications and settings.

High Torque

The huge torque that planetary gearboxes have is due to the large quantity of planet gears sharing load which lets them transfer more energy per volume than conventional similar axis-based gearboxes.

A common planetary gear arrangement comprises three shafts: the sun gear as well as the planet carrier, and an outer the ring gear. The sun gear is the one that drives the planet gears that turn according to how many teeth that are in each gear.

In this instance the sun gear has 24 teeth, while every planet gear is equipped with 16 teeth. So the ratio is -+24/16 or -+3/ 2; one clockwise rotation on the sun gear generates 1.5 counterclockwise turns for each planet gear around its axis.


High Precision

Planetary gearboxes are utilized in many applications that require high-precision. They can be set up to provide precise amounts of torque in a compact footprint, which makes them the ideal solution in applications in which space is limited and precision is required.

These can then be paired with other components to create functions that are compact as well as robust and efficient. This makes them suitable for a variety of motion control tasks like pipe bending and robotic arms machines.

Planetary gearboxes are constructed with the highest torsional stiffness and the lowest backlash. This allows them to offer the maximum power output, while minimizing noise and loss of torque.


Planetary gearboxes are distinguished by the high efficiency they provide. They also feature a higher power density in comparison to other kinds of gear because of their small size. The inclusion the external ring gear, in particular, reduces the size and weight of this kind of gear, which makes it possible the transmission of high torque in smaller construction areas.

Planet gears are generally constructed from metal components to increase their durability and endurance. These gears are used for many different purposes like machines for forestry, debarking and sawing machines such as vacuum filters, pulp washers and many other.

Like every other mechanical or gear part in a car the planetary gears require Lubrication to work efficiently and avoid damage and wear. The lubrication usually consists of grease, oil or synthetic gel that ensures the gears work correctly and prevent wear. It also helps to cool and helps reduce noise or vibration.


Low Noise

Planetary gearboxes can be a good option for industrial applications due to their quiet operation. This kind of equipment is lightweight and is able to transmit the highest torque with an uncomplicated layout.

They can be utilized in a range of different applications such as automation devices that are driven with servo motors. These kinds of gearboxes are available in a vast variety of ratios, and can be tailored to meet your the requirements of a specific application.

As opposed to helical gearboxes, planetary equipment is designed with multiple teeth that mesh simultaneously to boost efficiency. This makes the distribution of power is more efficient and lets more torque be transferred.