China Professional High Torque 750W Servo Motor Spur Transmission Planetary Gearboxes gearbox assembly

Product Description

High Torque 750W Servo Motor Spur Transmission Planetary Gearboxes

Planetary gearbox is a kind of reducer with wide versatility. The inner gear adopts low carbon alloy steel carburizing quenching and grinding or nitriding process. Planetary gearbox has the characteristics of small structure size, large output torque, high speed ratio, high efficiency, safe and reliable performance, etc. The inner gear of the planetary gearbox can be divided into spur gear and helical gear. Customers can choose the right precision reducer according to the needs of the application.

Product Description


1.With bevel gear reversing mechanism,right angle steering output is realized’
2.Circycle output,threaded connection,standard size;
3.The input specifications are completes and there are many choices;
4.Spur transmission,single cantilever structure,design simple,high cost performance;
5.Keyway can be opened in the force shaft;
6.stable operation and low noise;
7.Size range:60-120mm;
8.Ratio range:3-100;
9.Precision range:8-16arcmin;
10.Support custom according to drawings or samples

Product Parameters

Specifications PVLN60 PVLN90 PVLN120
Technal Parameters
Max. Torque Nm 1.5times rated torque
Emergency Stop Torque Nm 2.5times rated torque
Max. Radial Load N 240 450 1240
Max. Axial Load N 220 430 1000
Torsional Rigidity Nm/arcmin 1.8 4.85 11
Max.Input Speed rpm 8000 6000 6000
Rated Input Speed rpm 4000 3500 3500
Noise dB ≤58 ≤60 ≤65
Average Life Time h 20000
Efficiency Of Full Load % L1≥95%       L2≥92%
Return Backlash P1 L1 arcmin ≤8 ≤8 ≤8
L2 arcmin ≤12 ≤12 ≤12
P2 L1 arcmin ≤16 ≤16 ≤16
L2 arcmin ≤20 ≤20 ≤20
Moment Of Inertia Table L1 3 Kg*cm2 0.46 1.73 12.78
4 Kg*cm2 0.46 1.73 12.78
5 Kg*cm2 0.46 1.73 12.78
7 Kg*cm2 0.41 1.42 11.38
10 Kg*cm2 0.41 1.42 11.38
L2 12 Kg*cm2 0.44 1.49 12.18
15 Kg*cm2 0.44 1.49 12.18
16 Kg*cm2 0.72 1.49 12.18
20 Kg*cm2 0.44 1.49 12.18
25 Kg*cm2 0.44 1.49 12.18
28 Kg*cm2 0.44 1.49 12.18
30 Kg*cm2 0.44 1.49 12.18
35 Kg*cm2 0.44 1.49 12.18
40 Kg*cm2 0.44 1.49 12.18
50 Kg*cm2 0.34 1.25 11.48
70 Kg*cm2 0.34 1.25 11.48
100 Kg*cm2 0.34 1.25 11.48
Technical Parameter Level Ratio   PVLN60 PVLN90 PVLN120
Rated Torque L1 3 Nm 27 96 161
4 Nm 40 122 210
5 Nm 40 122 210
7 Nm 34 95 170
10 Nm 16 56 86
L2 12 Nm 27 96 161
15 Nm 27 96 161
16 Nm 40 122 210
20 Nm 40 122 210
25 Nm 40 122 210
28 Nm 40 122 210
30 Nm 27 96 161
35 Nm 40 122 210
40 Nm 40 122 210
50 Nm 40 122 210
70 Nm 34 95 170
100 Nm 16 56 86
Degree Of Protection   IP65
Operation Temprature ºC  – 10ºC to -90ºC
Weight L1 kg 1.7 4.4 12
L2 kg 1.9 5 14

Company Profile

Packaging & Shipping

1. Lead time: 10-15 days as usual, 30 days in busy season, it will be based on the detailed order quantity;
2. Delivery: DHL/ TNT/ EMS/ UPS/ FEDEX


1. who are we?
Hefa Group is based in ZheJiang , China, start from 1998,has a 3 subsidiaries in total.The Main Products is planetary gearbox,timing belt pulley, helical gear,spur gear,gear rack,gear ring,chain wheel,hollow rotating platform,module,etc

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. how to choose the suitable planetary gearbox?
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

4. why should you buy from us not from other suppliers?
We are 22 years experiences manufacturer on making the gears, specializing in manufacturing all kinds of spur/bevel/helical gear, grinding gear, gear shaft, timing pulley, rack, planetary gear reducer, timing belt and such transmission gear parts

5. what services can we provide?
Accepted Delivery Terms: Fedex,DHL,UPS;
Accepted Payment Currency:USD,EUR,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,PayPal,Western Union;
Language Spoken:English,Chinese,Japanese

Application: Motor, Motorcycle, Machinery, Marine, Agricultural Machinery, Manipulator Machinery
Function: Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction
Layout: Coaxial
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Double-Step
US$ 199/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

servo gearbox

Compatibility of Servo Gearbox with a Specific Motor

The compatibility between a servo gearbox and a specific motor depends on several key factors:

1. Mounting Configuration: The mounting interface of the servo gearbox and motor must be compatible. This includes the type of coupling, flange size, and bolt pattern. Proper alignment ensures efficient power transmission and minimizes mechanical stress.

2. Shaft Diameter and Keyway: The diameter and keyway of the motor shaft must match the input shaft of the servo gearbox. A precise fit prevents slippage and ensures accurate torque transmission.

3. Torque and Speed Ratings: The torque and speed requirements of the application should align with the torque and speed ratings of both the motor and gearbox. Oversizing or undersizing either component can lead to inefficient operation and premature wear.

4. Inertia Matching: Inertia matching between the motor and gearbox helps prevent resonance and oscillations in the system. An appropriate inertia match ensures smooth and precise motion control.

5. Backlash and Stiffness: The gearbox’s backlash (play in the gears) and stiffness characteristics should match the application’s requirements. Low backlash and high stiffness are crucial for accurate positioning tasks.

6. Efficiency and Heat Dissipation: The combined efficiency of the motor and gearbox affects the overall system efficiency. Inadequate efficiency can lead to energy losses and excessive heat generation.

7. Service Life and Maintenance: Compatibility also involves considering the expected service life and maintenance requirements. A well-matched motor-gearbox combination enhances the durability and reliability of the motion control system.

8. Control and Feedback: The control system’s capabilities, such as closed-loop control and feedback devices, play a role in determining compatibility. The motor and gearbox should provide the necessary interfaces for effective integration into the control system.

Manufacturers and engineers often provide guidelines and compatibility charts to assist in selecting the right servo gearbox for a specific motor. Considering these factors ensures optimal performance, efficiency, and longevity of the motion control system.

servo gearbox

Disadvantages and Limitations of Using Servo Gear Systems

Servo gear systems offer numerous benefits for precise motion control, but they also come with certain disadvantages and limitations:

1. Cost: Servo gear systems can be more expensive than traditional gearbox solutions. The combination of high-precision components, advanced electronics, and closed-loop control mechanisms can result in higher upfront costs.

2. Complexity: Servo gear systems are complex, requiring expertise in programming, tuning, and integrating the components. Setting up and fine-tuning the system can be time-consuming, especially for applications with intricate motion profiles.

3. Maintenance: The complex nature of servo gear systems can lead to increased maintenance requirements. Regular maintenance, including calibration and monitoring of sensors, is essential to ensure optimal performance and accuracy.

4. Sensitivity to Environmental Factors: Servo systems can be sensitive to environmental conditions such as temperature, humidity, and vibration. Extreme variations in these factors can impact the system’s performance and accuracy.

5. Power Consumption: Servo systems can consume more power compared to other motion control solutions. This is due to the continuous monitoring, feedback processing, and control algorithms that are essential for precise motion control.

6. Size and Weight: In some cases, servo gear systems can be larger and heavier than traditional gearbox setups, which can impact the overall design and space requirements of the machinery or equipment.

7. Overkill for Some Applications: Not all applications require the high precision and capabilities offered by servo gear systems. In simpler applications, the added complexity and cost may not be justified.

8. Compatibility Challenges: Integrating servo gear systems with existing equipment or machinery can be challenging, especially if the components are not designed to work together seamlessly.

While servo gear systems provide exceptional precision and control, it’s important to carefully evaluate the specific requirements of the application and consider the associated disadvantages and limitations before choosing this solution.

servo gearbox

Role of Servo Gearbox in Robotics and Automation

Servo gearboxes play a crucial role in enhancing the performance and precision of robotics and automation systems:

1. Precision Motion Control: In robotics and automation, precise control of movement is essential. Servo gearboxes provide accurate speed and position control, allowing robots to perform intricate tasks with high accuracy.

2. Efficient Power Transmission: Servo gearboxes efficiently transmit power from the motor to the robotic components, ensuring minimal energy loss and optimizing the overall system efficiency.

3. Dynamic Performance: Robots often require quick changes in direction, speed, and acceleration. Servo gearboxes excel in dynamic performance, enabling rapid adjustments and smooth motion changes.

4. Reducing Backlash: Backlash in gear systems can lead to imprecise movements. Servo gearboxes are designed to minimize backlash, resulting in accurate positioning and reduced lost motion.

5. Compact Design: Many robotic applications require compact and lightweight components. Servo gearboxes offer a high torque-to-size ratio, allowing robots to generate significant power while maintaining a small footprint.

6. Smooth and Silent Operation: The low backlash and precise gearing of servo gearboxes contribute to smooth and quiet operation, which is crucial in environments where noise and vibration can affect performance.

7. Feedback Integration: Servo gearboxes can integrate with various feedback devices, such as encoders, resolvers, and sensors, to provide accurate position and speed information to the control system.

8. Reliable and Repeatable Performance: The consistent and repeatable performance of servo gearboxes ensures that robots can execute tasks accurately and reliably over time.

9. Customization: Servo gearboxes can be customized to meet the specific requirements of different robotic applications, including factors like gear ratios, mounting options, and feedback compatibility.

10. Versatility: From industrial assembly lines to medical robotics, servo gearboxes find applications in a wide range of industries, contributing to improved automation and efficiency.

In summary, the role of a servo gearbox in robotics and automation is to provide the precise and efficient motion control necessary for robots to perform tasks with accuracy, speed, and reliability.

China Professional High Torque 750W Servo Motor Spur Transmission Planetary Gearboxes   gearbox assembly	China Professional High Torque 750W Servo Motor Spur Transmission Planetary Gearboxes   gearbox assembly
editor by CX 2023-11-02