Product Description

Prf80-L2 China Advance Marine Planetary Transmission Gearbox For Sale

The main transmission structure of planetary reducer is planetary gear, sun gear, internal gear ring and planetary carrier. Planetary gear reducer has the advantages of small volume, high transmission efficiency, wide deceleration range and high precision. It is widely used in the transmission system of servo motor, stepping motor, DC motor and other motors. Its function is to reduce speed, increase torque, reduce load and motor moment of inertia ratio on the premise of ensuring precision transmission.

Product Parameters

1.Square flange output,standard size;
2.The input connection specifications are competeand there are many choices;
3.Straight transmission,single cantilever structure,design simple,high cost performance;
4.Stable operation,low noise;
5.Keyway can be opened in the force shaft;
6.Size range:40-160mm;
7.Ratio range:3-100;
8.Precision range:8-16arcmin

Specifications PRF40 PRF60 PRF80 PRF90 PRF120 PRF160
Technal Parameters
Max. Torque Nm 1.5times rated torque
Emergency Stop Torque Nm 2.5times rated torque
Max. Radial Load N 185 240 400 450 1240 2250
Max. Axial Load N 150 220 420 430 1000 1500
Torsional Rigidity Nm/arcmin 0.7 1.8 4.7 4.85 11 35
Max.Input Speed rpm 8000 8000 6000 6000 6000 4000
Rated Input Speed rpm 4500 4000 3500 3500 3500 3000
Noise dB ≤55 ≤58 ≤60 ≤60 ≤65 ≤70
Average Life Time h 20000
Efficiency Of Full Load % L1≥96%       L2≥94%
Return Backlash P1 L1 arcmin ≤8 ≤8 ≤8 ≤8 ≤8 ≤8
L2 arcmin ≤12 ≤12 ≤12 ≤12 ≤12 ≤12
P2 L1 arcmin ≤16 ≤16 ≤16 ≤16 ≤16 ≤16
L2 arcmin ≤20 ≤20 ≤20 ≤20 ≤20 ≤20
Moment Of Inertia Table L1 3 Kg*cm2 0.1 0.46 0.77 1.73 12.78 36.72
4 Kg*cm2 0.1 0.46 0.77 1.73 12.78 36.72
5 Kg*cm2 0.1 0.46 0.77 1.73 12.78 36.72
7 Kg*cm2 0.06 0.41 0.65 1.42 11.38 34.02
10 Kg*cm2 0.06 0.41 0.65 1.42 11.38 34.02
L2 12 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
15 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
16 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
20 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
25 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
28 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
30 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
35 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
40 Kg*cm2 0.08 0.44 0.72 1.49 12.18 34.24
50 Kg*cm2 0.05 0.34 0.58 1.25 11.48 34.02
70 Kg*cm2 0.05 0.34 0.58 1.25 11.48 34.02
100 Kg*cm2 0.05 0.34 0.58 1.25 11.48 34.02
Technical Parameter Level Ratio   PRF40 PRF60 PRF80 PRF90 PRF120 PRF160
Rated Torque L1 3 Nm / 27 50 96 161 384
4 Nm 16 40 90 122 210 423
5 Nm 15 40 90 122 210 423
7 Nm 12 34 48 95 170 358
10 Nm 10 16 22 56 86 210
L2 12 Nm / 27 50 95 161 364
15 Nm / 27 50 96 161 364
16 Nm 16 40 90 122 210 423
20 Nm 15 40 90 122 210 423
25 Nm 16 40 90 122 210 423
28 Nm 16 40 90 122 210 423
30 Nm / 27 50 96 161 364
35 Nm 12 40 90 122 210 423
40 Nm 16 40 90 122 210 423
50 Nm 15 40 90 122 210 423
70 Nm 12 34 48 95 170 358
100 Nm 10 16 22 96 80 210
Degree Of Protection   IP65
Operation Temprature ºC  – 10ºC to -90ºC
Weight L1 kg 0.43 0.98 2.3 3.12 7.08 15.5
L2 kg 0.65 1.26 2.97 3.82 8.7 17

Company Profile

Packaging & Shipping

1. Lead time: 7-10 working days as usual, 20 working days in busy season, it will be based on the detailed order quantity;
2. Delivery: DHL/ UPS/ FEDEX/ EMS/ TNT

Patented reducer, German technology planetary reducer. 
OEM, ODM.  We can offer planetary reducer, gear, pulley and other products.
Contact person: Sunny

FAQ

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

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Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car, Automation Equipment
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Layout: Coaxial
Gear Shape: Cylindrical Gear
Step: Double-Step
Samples:
US$ 120/Piece
1 Piece(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

planetary gearbox

Impact of Gear Tooth Design and Profile on the Efficiency of Planetary Gearboxes

The design and profile of gear teeth have a significant impact on the efficiency of planetary gearboxes:

  • Tooth Profile: The tooth profile, such as involute, cycloid, or modified profiles, affects the contact pattern and load distribution between gear teeth. An optimized profile minimizes stress concentration and ensures smooth meshing, contributing to higher efficiency.
  • Tooth Shape: The shape of gear teeth influences the amount of sliding and rolling motion during meshing. Gear teeth designed for more rolling and less sliding motion reduce friction and wear, enhancing overall efficiency.
  • Pressure Angle: The pressure angle at which gear teeth engage affects the force distribution and efficiency. Larger pressure angles can lead to higher efficiency due to improved load sharing, but they may require more space.
  • Tooth Thickness and Width: Optimized tooth thickness and width contribute to distributing the load more evenly across the gear face. Proper sizing reduces stress and increases efficiency.
  • Backlash: Backlash, the gap between meshing gear teeth, impacts efficiency by causing vibrations and energy losses. Properly controlled backlash minimizes these effects and improves efficiency.
  • Tooth Surface Finish: Smoother tooth surfaces reduce friction and wear. Proper surface finish, achieved through grinding or honing, enhances efficiency by reducing energy losses due to friction.
  • Material Selection: The choice of gear material influences wear, heat generation, and overall efficiency. Materials with good wear resistance and low friction coefficients contribute to higher efficiency.
  • Profile Modification: Profile modifications, such as tip and root relief, optimize tooth contact and reduce interference. These modifications minimize friction and increase efficiency.

In summary, the design and profile of gear teeth play a crucial role in determining the efficiency of planetary gearboxes. Optimal tooth profiles, shapes, pressure angles, thicknesses, widths, surface finishes, and material selections all contribute to reducing friction, wear, and energy losses, resulting in improved overall efficiency.

planetary gearbox

Considerations for Selecting Size and Gear Materials in Planetary Gearboxes

Choosing the appropriate size and gear materials for a planetary gearbox is crucial for optimal performance and reliability. Here are the key considerations:

1. Load and Torque Requirements: Evaluate the anticipated load and torque that the gearbox will experience in the application. Select a gearbox size that can handle the maximum load without exceeding its capacity, ensuring reliable and durable operation.

2. Gear Ratio: Determine the required gear ratio to achieve the desired output speed and torque. Different gear ratios are achieved by varying the number of teeth on the gears. Select a gearbox with a suitable gear ratio for your application’s requirements.

3. Efficiency: Consider the efficiency of the gearbox, which is influenced by factors such as gear meshing, bearing losses, and lubrication. A higher efficiency gearbox minimizes energy losses and improves overall system performance.

4. Space Constraints: Evaluate the available space for installing the gearbox. Planetary gearboxes offer compact designs, but it’s essential to ensure that the selected size fits within the available area, especially in applications with limited space.

5. Material Selection: Choose suitable gear materials based on factors like load, speed, and operating conditions. High-quality materials, such as hardened steel or specialized alloys, enhance gear strength, durability, and resistance to wear and fatigue.

6. Lubrication: Proper lubrication is critical for reducing friction and wear in the gearbox. Consider the lubrication requirements of the selected gear materials and ensure the gearbox is designed for efficient lubricant distribution and maintenance.

7. Environmental Conditions: Assess the environmental conditions in which the gearbox will operate. Factors such as temperature, humidity, and exposure to contaminants can impact gear material performance. Choose materials that can withstand the operating environment.

8. Noise and Vibration: Gear material selection can influence noise and vibration levels. Some materials are more adept at dampening vibrations and reducing noise, which is essential for applications where quiet operation is crucial.

9. Cost: Consider the budget for the gearbox and balance the cost of materials, manufacturing, and performance requirements. While high-quality materials may increase initial costs, they can lead to longer gearbox lifespan and reduced maintenance expenses.

10. Manufacturer’s Recommendations: Consult with gearbox manufacturers or experts for guidance on selecting the appropriate size and gear materials. They can provide insights based on their experience and knowledge of various applications.

Ultimately, the proper selection of size and gear materials is vital for achieving reliable, efficient, and long-lasting performance in planetary gearboxes. Taking into account load, gear ratio, materials, lubrication, and other factors ensures the gearbox meets the specific needs of the application.

planetary gearbox

Advantages of Planetary Gearboxes Compared to Other Gearbox Configurations

Planetary gearboxes, also known as epicyclic gearboxes, offer several advantages compared to other gearbox configurations. These advantages make them well-suited for a wide range of applications. Here’s a closer look at why planetary gearboxes are favored:

  • Compact Size: Planetary gearboxes are known for their compact and space-efficient design. The arrangement of multiple gears within a single housing allows for high gear reduction ratios without significantly increasing the size of the gearbox.
  • High Torque Density: Due to their compact design, planetary gearboxes offer high torque density, meaning they can transmit a significant amount of torque relative to their size. This makes them ideal for applications where space is limited, but high torque is required.
  • Efficiency: Planetary gearboxes can achieve high efficiency levels, especially when properly lubricated and well-designed. The arrangement of multiple meshing gears allows for load distribution, reducing individual gear tooth stresses and minimizing losses due to friction.
  • Multiple Gear Stages: Planetary gearboxes can be designed with multiple stages, allowing for higher gear reduction ratios. This is particularly advantageous when precise control of output speed and torque is required.
  • High Gear Ratios: Planetary gearboxes can achieve high gear reduction ratios in a single stage, eliminating the need for multiple external gears. This simplifies the overall design and reduces the number of components.
  • Load Sharing: The multiple gear meshing arrangements in planetary gearboxes distribute loads evenly across multiple gears, reducing the stress on individual components and enhancing overall durability.
  • High Precision: Planetary gearboxes offer high precision and accuracy in gear meshing, making them suitable for applications that demand precise motion control.
  • Quiet Operation: The design of planetary gearboxes often leads to smoother and quieter operation compared to some other gearbox configurations, contributing to improved user experience.

Overall, the advantages of planetary gearboxes in terms of size, torque density, efficiency, versatility, and precision make them an attractive choice for a wide range of applications across industries, including robotics, automotive, aerospace, and industrial machinery.

China Best Sales Prf80-L2 China Advance Marine Planetary Transmission Gearbox for Sale   gearbox definition		China Best Sales Prf80-L2 China Advance Marine Planetary Transmission Gearbox for Sale   gearbox definition
editor by CX 2024-05-06