China supplier Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox gearbox drive shaft

Product Description

Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox

Product Description

1. It is mainly used for servo motor/stepping motor, with the greatest characteristics of high precision and large transmission capacity.

2. It can also be equipped with power sources such as DC motor, single-phase motor, synchronous motor and various three-phase asynchronous motors.

3. Precision planetary gear reducer, also known as servo planetary gear reducer, adopts planetary gear structure design, adopts high-performance alloy steel for special heat treatment, and flanges are made of aluminum alloy, which is characterized by beautiful appearance, small volume, light weight, large transmission ratio, large torque, low noise, high efficiency, long service life, etc.

4. Fully enclosed and internally filled with high-performance grease, free of maintenance for life.

  • 7 sices: 42mm-220mm
  • Output torque: 14Nm-2000Nm
  • Ratio:
    2-stage: 15/20/25/30/35/40/45/50
  • Backlash:
    1-stage:≤1, ≤3, ≤5 arcmin
    2-stage:≤3, ≤5, ≤7 arcmin
  • 7 sices: 42mm-220mm
  • Output torque: 9Nm-2000Nm
  • Ratio:
  • Backlash:
    1-stage:≤2, ≤4, ≤6 arcmin
    2-stage:≤4, ≤7, ≤9 arcmin
  • 7 sices: 47mm-255mm
  • Output torque: 14Nm-2000Nm
  • Ratio:
    2-stage: 20/25/30/35/40/50/60/70/80/100
  • Backlash:
    1-stage:≤1, ≤3, ≤5 arcmin
    2-stage:≤3, ≤5, ≤7 arcmin
  • 7 sices: 47mm-255mm
  • Output torque: 14Nm-2000Nm
  • Ratio:
  • Backlash:
    1-stage:≤2, ≤4, ≤6 arcmin
    2-stage:≤4, ≤7, ≤9 arcmin
  • 7 sices: 42mm-220mm
  • Output torque: 14Nm-2000Nm
  • Ratio:
  • Backlash:
    1-stage:≤5 arcmin
    2-stage:≤8 arcmin
  • 7 sices: 70mm-235mm
  • Output torque: 14Nm-2000Nm
  • Ratio:
  • Backlash:
    1-stage:≤5  arcmin
    2-stage:≤8 arcmin
  • 10 sices: 40mm-160mm
  • Output torque: 9Nm-423Nm
  • Ratio:
  • Backlash:
    1-stage:≤6, ≤8 arcmin
    2-stage:≤8, ≤10 arcmin

1. Square housing, CZPT shaft input, CZPT shaft output, flange connection.

2. It is widely used, economical and practical, and has a long life. In the application of servo control, it has played a good servo rigidity effect, accurate positioning control, and has the characteristics of low back clearance, high efficiency, high input speed, high input torque, smooth operation, low noise, etc. on the operating platform. Its appearance and structure design are light and small.

TYPE AND MODEL NUMBER                                                                       

PL    80   –   40    P2     S2     OP1

 1       2         3     4         5        6

Planetary Gearbox Frame Code:                                                                                                       

PL: Round flange mounting Series                                                                                                    

WPL: Right-angle Round flange mounting Series                                                                               

PF:Square flange mounting Series                                                                                                    

WPF: Right-angle Square flange mounting Series                                                                              

HAB: High Rigidity high precision Square housing Series                                                                   

WHAB: Right-angle High Rigidity high precision Square housing Series                                               

HAT: Right-angle Double flange Double shaft Series  


Single stage:3,4,5,7,8,10
Three stages:60,80,100,120,160,200,256,320,512



Output shaft type S1: Shaft without key
S2: Shaft with key
T:  Special require
Input shaft type

S1: Shaft without key
S2: Shaft with key
T:  Special require

Input shaft type

OP1: Integral Hoop clamp coupling
OP2: Split type Hoop clamp coupling (without keyway)
OP3: Integral Hoop clamp coupling with keyway
OP4: Reinforcement Integral Hoop clamp coupling( suitable for frequently CW and CCW)
OP5: Only keyway connect coupling
OP6: Other type connect coupling   


Size above PL120(including) high torque products adopt integral double wall planet pinion carrier, improve the output strength and precision.

Hoop clamp coupling have 5 connection ways suitable for different application environments:

Size above PL120(including) precision and high strength integral inner gear housing, processed in 1 station, which eliminate the cumulative error and assembling error of split type. Get rid of casting process; adopt hot forging process, which will reduce the blank material defects.

The meshing gear adopt shaving process after carburizing and quenching, which easier to make gear surface smooth and high precision, reduce the temperature rising caused by gear surface gluing and friction.

Related products



Purpose/application field
It is increasingly widely used in metallurgy, mining, petroleum, chemical industry, shipping, light industry, food, textile, printing and dyeing, pharmacy, rubber, plastic, and lifting transportation.

1. When installing the reducer, attention shall be paid to the alignment of the transmission center axis, and the error shall not be greater than the use compensation of the coupling used. Good alignment can prolong service life and obtain ideal transmission efficiency.
2. When installing the transmission parts on the output shaft, it is not allowed to strike with a hammer. Generally, the transmission parts are pressed in with bolts by using the assembly fixture and the internal thread of the shaft end, otherwise the internal parts of the reducer may be damaged. It is better not to use rigid fixed coupling. Improper installation of this type of coupling will cause unnecessary external load, resulting in early damage to the bearing and even fracture of the output shaft in severe cases.
3. The reducer shall be firmly installed on a stable and horizontal foundation or base, the oil in the oil drain tank shall be drained, and the cooling air circulation shall be smooth. The foundation is not reliable, which will cause vibration and noise during operation, and cause damage to bearings and gears. When the transmission connecting parts have protrusions or are driven by gears and sprockets, it shall be considered to install protective devices. When the output shaft bears a large radial load, the reinforced type shall be selected.
4. The installation device shall be in accordance with the provisions to ensure that the staff can easily approach the oil pointer, vent plug and drain plug. After the installation is in place, the accuracy of the installation position and the reliability of each fastener pressing shall be comprehensively checked in order. After the installation, it shall be able to rotate flexibly. The reducer is lubricated by oil pool splash. Before operation, the user needs to remove the plug of the vent and replace it with a vent plug. According to different installation positions, open the oil level plug screw to check the height of the oil level line. Add oil from the oil level plug until the lubricating oil overflows from the screw hole of the oil level plug. After the oil level plug is screwed on and confirmed to be correct, the no-load test run can be carried out, and the time shall not be less than 2 hours. The operation shall be stable without shock, vibration, noise and oil leakage, and any abnormality shall be eliminated in time.
After a certain period of time, the oil level should be checked again to prevent possible leakage caused by the casing. If the ambient temperature is too high or too low, the brand of lubricating oil can be changed.

Company Profile

Our company is a physical factory specializing in the production of planetary gear reducers. We have an experienced technical team and advanced processing equipment. Through digestion and integration of the world’s leading production processes, we have formed a standard mature system. We are an early manufacturer of high-precision reducers in mainland China. Now the product supporting scope has covered the automation fields such as bending machine, machine tool, cutting machine, woodworking machine, glass, chemical fiber, textile, packaging, robot, etc., and has been widely praised. Planetary gear reducer is suitable for servo and stepping motors of Panasonic, Mitsubishi, Delta, Siemens, Xihu (West Lake) Dis.yuan, CZPT and other domestic and foreign manufacturers, and provides technical support in non-standard fields. We look CZPT to cooperating with you!

Our equipments

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Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Layout: Planetary
Gear Shape: Bevel Gear
Step: Stepless
Type: Planetary Gear Reducer
US$ 120/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

planetary gearbox

Considerations for Selecting Planetary Gearboxes for Aerospace and Satellite Applications

Selecting planetary gearboxes for aerospace and satellite applications requires careful consideration due to the unique demands of these industries:

  • Weight and Size: Aerospace and satellite systems demand lightweight and compact components. Planetary gearboxes with high power density and lightweight materials are preferred to minimize the overall weight and size of the equipment.
  • Reliability: Aerospace missions involve critical operations where component failure is not an option. Planetary gearboxes with a proven track record of reliability and durability are essential to ensure mission success.
  • High Efficiency: Efficiency is crucial in aerospace applications to optimize power usage and extend the operational life of satellites. Planetary gearboxes with high efficiency ratings contribute to energy conservation.
  • Extreme Environments: Aerospace and satellite systems are exposed to harsh conditions such as vacuum, extreme temperatures, and radiation. Planetary gearboxes need to be designed and tested to withstand these conditions without compromising performance.
  • Precision and Accuracy: Many aerospace operations require precise positioning and accurate control. Planetary gearboxes with minimal backlash and high precision gear meshing contribute to accurate movements.
  • Lubrication: Lubrication plays a vital role in aerospace gearboxes to ensure smooth operation and prevent wear. Gearboxes with efficient lubrication systems or self-lubricating materials are favored.
  • Redundancy and Fail-Safe: Some aerospace systems incorporate redundancy to ensure mission success even in case of component failure. Planetary gearboxes with built-in redundancy or fail-safe mechanisms enhance system reliability.
  • Integration: Planetary gearboxes need to be seamlessly integrated into the overall design of aerospace and satellite systems. Customization options and compatibility with other components are important factors.

Overall, selecting planetary gearboxes for aerospace and satellite applications involves a comprehensive evaluation of factors related to weight, reliability, efficiency, durability, environmental resistance, precision, and integration to meet the unique demands of these industries.

planetary gearbox

Impact of Temperature Variations and Environmental Conditions on Planetary Gearbox Performance

The performance of planetary gearboxes can be significantly influenced by temperature variations and environmental conditions. Here’s how these factors impact their operation:

Temperature Variations: Extreme temperature fluctuations can affect the lubrication properties of the gearbox. Cold temperatures can cause the lubricant to thicken, leading to increased friction and reduced efficiency. On the other hand, high temperatures can cause the lubricant to thin out, potentially leading to insufficient lubrication and accelerated wear.

Environmental Contaminants: Planetary gearboxes used in outdoor or industrial environments can be exposed to contaminants such as dust, dirt, moisture, and chemicals. These contaminants can infiltrate the gearbox and degrade the quality of the lubricant. Additionally, abrasive particles can cause wear on gear surfaces, leading to decreased performance and potential damage.

Corrosion: Exposure to moisture, especially in humid or corrosive environments, can lead to corrosion of gearbox components. Corrosion weakens the structural integrity of gears and other components, which can ultimately result in premature failure.

Thermal Expansion: Temperature changes can cause materials to expand and contract. In gearboxes, this can lead to misalignment of gears and improper meshing, causing noise, vibration, and reduced efficiency. Proper consideration of thermal expansion is crucial in gearbox design.

Sealing and Ventilation: To mitigate the impact of temperature and environmental factors, planetary gearboxes need effective sealing to prevent contaminants from entering and to retain the lubricant. Proper ventilation is also essential to prevent pressure build-up inside the gearbox due to temperature changes.

Cooling Systems: In applications where temperature control is critical, cooling systems such as fans or heat exchangers can be incorporated to maintain optimal operating temperatures. This helps prevent overheating and ensures consistent gearbox performance.

Overall, temperature variations and environmental conditions can have a profound impact on the performance and lifespan of planetary gearboxes. Manufacturers and operators need to consider these factors during design, installation, and maintenance to ensure reliable and efficient operation.

planetary gearbox

Impact of Gear Ratio on Output Speed and Torque in Planetary Gearboxes

The gear ratio of a planetary gearbox has a significant effect on both the output speed and torque of the system. The gear ratio is defined as the ratio of the number of teeth on the driven gear (output) to the number of teeth on the driving gear (input).

1. Output Speed: The gear ratio determines the relationship between the input and output speeds of the gearbox. A higher gear ratio (more teeth on the output gear) results in a lower output speed compared to the input speed. Conversely, a lower gear ratio (fewer teeth on the output gear) leads to a higher output speed relative to the input speed.

2. Output Torque: The gear ratio also affects the output torque of the gearbox. An increase in gear ratio amplifies the torque delivered at the output, making it higher than the input torque. Conversely, a decrease in gear ratio reduces the output torque relative to the input torque.

The relationship between gear ratio, output speed, and output torque is inversely proportional. This means that as the gear ratio increases and output speed decreases, the output torque proportionally increases. Conversely, as the gear ratio decreases and output speed increases, the output torque proportionally decreases.

It’s important to note that the gear ratio selection in a planetary gearbox involves trade-offs between output speed and torque. Engineers choose a gear ratio that aligns with the specific application’s requirements, considering factors such as desired speed, torque, and efficiency.

China supplier Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox   gearbox drive shaft	China supplier Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox   gearbox drive shaft
editor by CX 2024-05-09

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Planetary Gearbox

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