China OEM Single Step 10: 1 14mm Input Shaft 90mm Planetary Gearbox with Great quality

Product Description

Product Description


The reducer is generally used for low-speed and high-torxque transmission equipment. The motor, internal combustion engine or other high-speed running power is used to achieve the purpose of deceleration by meshing with the large gear on the output shaft through a gear with a small number of teeth on the input shaft of the reducer. The reducer will also have several pairs of gears with the same principle to achieve the ideal reduction effect. The ratio of the number of teeth of the large and small gears is the transmission ratio.


SPLF90-90mm Planetry Gearbox for Servo Motor L1 4 80
5 90
7 60
10 39
Adapted motor ∅ 19-40/ ∅70-3/90-M6
Rated Input Speed (rpm) 3000/min
Max Input Speed (rpm) 6000/min
Backlash L1 ≤10 Arcmin
L2 ≤15 Arcmin
Fault stop torque(N.m) 2 times of rated torque
Efficiency L1 96%
L2 94%
Average life span 20000h
Operating temperature -10°~+90°
Nosie  ≤60 db
Weight (kg) L1 3.5
L2 4.5
IP 54
Installation method Any installation method



Production Range


42 Series Planetary Gearbox

Backlash: 10-15 arcmin

Ratio Selection:

L1: 4,5,7,10,

L2: 12,16,20,25,28,35,40,50,70

Frame Dimension: 42mm Input Flange

Gear Arrangement: Planetary Straight Teeth

60 Series Planetary Gearbox

Backlash: 10-15 arcmin

Ratio Selection:
L1: 4,5,7,10,
L2: 16,20,25,28,35,40,50,70
Frame Dimension: 60mm Input Flange
Gear Arrangement: Planetary Straight Teeth

90 Series Planetary Gearbox

Backlash: 10-15 arcmin
Ratio Selection:
L1: 4,5,7,10,
L2: 16,20,25,28,35,40,50,70
Frame Dimension: 90mm Input Flange
Gear Arrangement: Planetary Straight Teeth

Powder Metal Series Planetary Gearbox

Backlash: 10-15 arcmin
Ratio Selection:
L1: 4,5,7,10,
L2: 16,20,25,28,35,40,50,70
Frame Dimension: 42mm & 57mm
Gear Arrangement: Planetary Straight Teeth

Right Angle Series Planetary Gearbox

Backlash: 10-15 arcmin
Ratio Selection:
L1: 4,5,7,10,

L2: 16,20,25,28,35,40,50,70
Frame Dimension: 60mm & 90mm
Gear Arrangement: Planetary Straight Teeth


Application Field

Automatic Arms


Assembly Line




Medical -Equipment


CNC Machine


Tapping Machine


Other Automation Devices


Why Choose Us


ZheJiang High Precision Gear Transmission Co., Ltd






ZheJiang High Precision Gear Transmission Co., Ltd located in HangZhou city, ZheJiang Province, China. It is a leading company dedicated in precision transmission parts and system research, manufacture and sales, various series of products are manufactured in its 5000 square CZPT workshop, the precision planetary gearbox and gear motor are developed especially for solar energy industry and have served many large-scale solar projects worldwidely. 

The research team has more than 15 years experiences in this field, who can ensure a punctual and efficient service to meet customer’s specific needs. It has pasted the ISO9001 quality management system and CE, products have been exported to lots of countries with a wide range application in AGV, intelligent robot, logistic, industrial automation, solar energy, vessel, packaging and textile etc.Consistently, our goal is to promote the application of solar power industry in the world, and we believe it provides clean and sustainable energy for humanity to better protect our environment.





Q:Which areas are your products mainly used in?

A:At present, we have 2 main products: precision planetary gear reducer and solar geared motor. Most of the precision planetary reducers are used in automation fields, such as medical equipment, 3D printers, door openers, tapping machines, CNC lathes and a series of automation equipment. In addition, our solar geared motors are used in photovoltaic power generation projects, which are mainly combined with rotary drives to drive solar panels to track sunlight.
Q : How to choose the suitable planetary gearbox?
A :First of all, we need you to be able to provide relevant parameters. If you have a motor drawing, it will let us recommend a suitable gearbox for you faster. If not, we hope you can provide the following motor parameters: output speed, output torque, voltage, current, IP, noise, operating conditions, motor size and power, etc.
Q : What is the price ?
A : The main determining factor for the price of each product is the order volume. You can communicate with us and let us understand each other. I believe that our prices, product quality and our services can definitely make you satisfied.

Q : Do you provide customized service?

A: Yes, we provide customized services. You only need to put CZPT your needs, and we will do our best to provide you with a plan, make plans, and try our best to meet your needs.



Application: Motor, Machinery, Marine, Agricultural Machinery, Laser Cutting Machine
Function: Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction
Layout: Coaxial
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Double-Step
US$ 80/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

planetary gearbox

Challenges in Achieving High Gear Ratios with Compactness in Planetary Gearboxes

Designing planetary gearboxes with high gear ratios while maintaining a compact form factor poses several challenges due to the intricate arrangement of gears and the need to balance various factors:

Space Constraints: Increasing the gear ratio typically requires adding more planetary stages, resulting in additional gears and components. However, limited available space can make it challenging to fit these additional components without compromising the compactness of the gearbox.

Efficiency: As the number of planetary stages increases to achieve higher gear ratios, there can be a trade-off in terms of efficiency. Additional gear meshings and friction losses can lead to decreased overall efficiency, impacting the gearbox’s performance.

Load Distribution: The distribution of loads across multiple stages becomes critical when designing high gear ratio planetary gearboxes. Proper load distribution ensures that each stage shares the load proportionally, preventing premature wear and ensuring reliable operation.

Bearing Arrangement: Accommodating multiple stages of planetary gears requires an effective bearing arrangement to support the rotating components. Improper bearing selection or arrangement can lead to increased friction, reduced efficiency, and potential failures.

Manufacturing Tolerances: Achieving high gear ratios demands tight manufacturing tolerances to ensure accurate gear tooth profiles and precise gear meshing. Any deviations can result in noise, vibration, and reduced performance.

Lubrication: Adequate lubrication becomes crucial in maintaining smooth operation and reducing friction as gear ratios increase. However, proper lubrication distribution across multiple stages can be challenging, impacting efficiency and longevity.

Noise and Vibration: The complexity of high gear ratio planetary gearboxes can lead to increased noise and vibration levels due to the higher number of gear meshing interactions. Managing noise and vibration becomes essential for ensuring acceptable performance and user comfort.

To address these challenges, engineers employ advanced design techniques, high-precision manufacturing processes, specialized materials, innovative bearing arrangements, and optimized lubrication strategies. Achieving the right balance between high gear ratios and compactness involves careful consideration of these factors to ensure the gearbox’s reliability, efficiency, and performance.

planetary gearbox

Differences Between Inline and Right-Angle Planetary Gearbox Configurations

Inline and right-angle planetary gearbox configurations are two common designs with distinct characteristics suited for various applications. Here’s a comparison of these configurations:

Inline Planetary Gearbox:

  • Configuration: In an inline configuration, the input and output shafts are aligned along the same axis. The sun gear, planetary gears, and ring gear are typically arranged in a straight line.
  • Compactness: Inline gearboxes are more compact and have a smaller footprint, making them suitable for applications with limited space.
  • Efficiency: Inline configurations tend to have slightly higher efficiency due to the direct alignment of components.
  • Output Speed and Torque: Inline gearboxes are better suited for applications that require higher output speeds and lower torque.
  • Applications: They are commonly used in robotics, conveyors, printing machines, and other applications where space is a consideration.

Right-Angle Planetary Gearbox:

  • Configuration: In a right-angle configuration, the input and output shafts are oriented at a 90-degree angle to each other. This allows for a change in direction of power transmission.
  • Space Flexibility: Right-angle gearboxes offer flexibility in arranging components, making them suitable for applications that require changes in direction or where space constraints prevent a straight-line configuration.
  • Torque Capacity: Right-angle configurations can handle higher torque loads due to the increased surface area of gear engagement.
  • Applications: They are often used in cranes, elevators, conveyor systems, and applications requiring a change in direction.
  • Efficiency: Right-angle configurations may have slightly lower efficiency due to increased gear meshing complexity and potential for additional losses.

Choosing between inline and right-angle configurations depends on factors such as available space, required torque and speed, and the need for changes in power transmission direction. Each configuration offers distinct advantages based on the specific needs of the application.

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 OEM Single Step 10: 1 14mm Input Shaft 90mm Planetary Gearbox   with Great quality China OEM Single Step 10: 1 14mm Input Shaft 90mm Planetary Gearbox   with Great quality
editor by CX 2023-10-08