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

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, CHINAMFG shaft input, CHINAMFG 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.

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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, CHINAMFG and other domestic and foreign manufacturers, and provides technical support in non-standard fields. We look CHINAMFG 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)

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epicyclic gear

What are the advantages of using epicyclic gears in automotive transmissions?

Epicyclic gears, also known as planetary gears, offer several advantages when used in automotive transmissions. Here’s a detailed explanation:

1. Compact Design:

Epicyclic gears provide a compact design, allowing automotive transmissions to be more space-efficient compared to other gear arrangements. This is particularly beneficial in modern vehicles where available space is limited. The compactness of epicyclic gears enables manufacturers to design smaller and lighter transmissions, resulting in overall weight reduction and improved vehicle fuel efficiency.

2. Gear Ratio Flexibility:

Epicyclic gears offer a wide range of gear ratios through the combination of the sun gear, planet gears, and ring gear. This flexibility allows automotive transmissions to provide multiple gear ratios, enabling smooth gear shifting and optimal engine performance across various driving conditions. Epicyclic gear systems can incorporate different gear sets and stages to achieve specific gear ratios, enhancing the vehicle’s acceleration, towing capabilities, and fuel economy.

3. Efficient Power Transmission:

The design of epicyclic gears facilitates efficient power transmission. The multiple planet gears distribute torque evenly across the gear system, minimizing power losses and improving overall transmission efficiency. This efficiency is particularly important in automotive transmissions, where efficient power transfer is vital for the vehicle’s performance and fuel economy.

4. Torque Multiplication and Gear Reduction:

Epicyclic gears can be configured to provide torque multiplication or gear reduction, depending on the arrangement of the gears. This capability is utilized in automotive transmissions to increase torque output during low-speed or high-load conditions, such as when starting from a standstill or climbing steep hills. Torque multiplication improves the vehicle’s drivability and towing capacity, enhancing its overall performance.

5. Smooth and Seamless Gear Shifts:

Epicyclic gears contribute to smooth and seamless gear shifts in automotive transmissions. The design allows for overlapping engagement of gears during gear shifting, minimizing the interruption of power delivery and providing a smoother transition between gears. This results in improved driving comfort and reduced wear on transmission components.

6. Durability and Reliability:

Epicyclic gears are known for their durability and reliability, making them well-suited for automotive applications. The design distributes load and wear among multiple planet gears, reducing stress on individual gear teeth and prolonging the lifespan of the transmission. Additionally, the compact and enclosed nature of the gear system provides protection against contaminants and external elements, further enhancing its reliability.

These advantages make epicyclic gears a popular choice in automotive transmissions, as they contribute to improved vehicle performance, fuel efficiency, and overall driving experience.

epicyclic gear

How do epicyclic gears maintain smooth operation during gear shifts?

Epicyclic gears, also known as planetary gears, are designed to maintain smooth operation during gear shifts. Here’s a detailed explanation:

1. Overlapping Engagement:

During gear shifts, epicyclic gears often utilize overlapping engagement, which means that multiple gears are engaged simultaneously for a brief period. This overlapping engagement allows for a gradual transition of torque from one gear to another, reducing sudden shocks or impacts that can cause jerky movements or noise.

2. Synchronizers or Clutches:

In certain applications, synchronizers or clutches are used in conjunction with epicyclic gears to facilitate smooth gear shifts. Synchronizers help match the speeds of the gears being engaged, while clutches enable gradual engagement and disengagement of gears. These mechanisms ensure that the gear shifts are seamless and minimize any jolts or vibrations.

3. Controlled Torque Transfer:

Epicyclic gears allow for controlled torque transfer during gear shifts. By manipulating the arrangement of the gears, such as holding a specific gear stationary, the torque can be gradually transferred from one gear to another. This controlled torque transfer helps maintain smooth operation during gear shifts.

4. Proper Gear Design:

The design of epicyclic gears plays a crucial role in maintaining smooth operation during gear shifts. Factors such as gear tooth profile, backlash, and clearance are carefully considered to minimize any sudden changes in contact and minimize gear meshing noise. Well-designed gears ensure smooth and efficient power transmission during gear shifts.

5. Lubrication and Damping:

Effective lubrication of the gear system helps reduce friction and wear during gear shifts. It also aids in damping vibrations and noise generated during the shifting process. Proper lubrication and damping techniques ensure smooth operation and minimize any disturbances during gear shifts.

6. Precise Manufacturing and Assembly:

Precision manufacturing and assembly of epicyclic gears are essential for maintaining smooth operation during gear shifts. Accurate gear tooth profiles, tight manufacturing tolerances, and precise gear alignment help ensure proper gear meshing and minimize any irregularities that can cause jolts or noise during gear shifts.

In summary, epicyclic gears maintain smooth operation during gear shifts through overlapping engagement, the use of synchronizers or clutches, controlled torque transfer, proper gear design, lubrication and damping techniques, as well as precise manufacturing and assembly. These factors work together to ensure seamless gear shifting, minimize shocks or impacts, and provide a smooth and comfortable driving experience in various applications.

epicyclic gear

What is an epicyclic gear and how does it function?

An epicyclic gear, also known as a planetary gear, is a gear system that consists of one or more outer gears, an inner gear, and a central gear, known as a sun gear. Here’s a detailed explanation of how it functions:

1. Gear Arrangement:

In an epicyclic gear system, the sun gear is located at the center and is surrounded by multiple outer gears, also called planet gears. The planet gears are typically mounted on a carrier, which allows them to rotate around the central sun gear.

2. Gear Engagement:

The teeth of the planet gears mesh with both the sun gear and an outer ring gear, also known as the annular gear. The annular gear has internal teeth that engage with the planet gears and external teeth that provide the outer boundary of the gear system.

3. Input and Output:

The input and output connections can be achieved in different ways depending on the design. Typically, the sun gear serves as the input shaft, while the carrier or the annular gear acts as the output shaft. The rotation of the input shaft (sun gear) causes the planet gears to orbit around it and rotate, resulting in the output shaft’s motion.

4. Gear Ratios:

An essential feature of epicyclic gears is their ability to provide different gear ratios by changing the arrangement of the gears. By holding one component stationary, such as fixing the annular gear or the carrier, and driving another component, the gear system can achieve various speed and torque combinations.

5. Gear Functions:

Epicyclic gears have several useful functions in mechanical systems, including:

  • Speed reduction: By fixing the sun gear and rotating the carrier or the annular gear, the output speed can be reduced compared to the input speed.
  • Speed increase: By fixing the carrier or the annular gear and rotating the sun gear, the output speed can be increased compared to the input speed.
  • Directional changes: Changing the gear engagement arrangement allows reversing the direction of rotation between the input and output shafts.
  • Torque multiplication: By utilizing the gear ratios, an epicyclic gear system can multiply or divide the torque between the input and output shafts, providing mechanical advantage.
  • Braking: By holding specific components, such as the sun gear or the carrier, the gear system can act as a brake, preventing rotation or controlling the speed of the output shaft.

Epicyclic gears find applications in various mechanical systems, including automotive transmissions, gearboxes, power tools, and robotics, due to their compact size, versatility, and ability to achieve multiple gear ratios within a single gear system.

China Professional Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox bevel spiral gearChina Professional Zd Zero Low Backlash Torque Automation Robot CNC Reducer NEMA 23 Stepper Servo Motor Super Helical Gear Small Micro Epicyclic High Precision Planetary Gearbox bevel spiral gear
editor by CX 2024-04-11