Product Description
Factory Price Low Backlash Ratio 20:1 Planetary Gear Boxes
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
Description:
1.The output shaft is made of large size,large span double bearing design,output shaft and planetary arm bracket as a whole.The input shaft is placed directly on the planet arm bracket to ensure that the reducer has high operating accuracy and maximum torsional rigidity.
2.Shell and the inner ring gear used integrated design,quenching and tempering after the processing of the teeth so that it can achieve high torque,high precision,high wear resistance.Moreover surface nickel-plated anti-rust treatment,so that its corrosion resistance greatly enhanced.
3.The planetary gear transmission employs full needle roller without retainer to increase the contact surface,which greatly upgrades structural rigidity and service life.
4.The gear is made of Japanese imported material.After the metal cutting process,the vacuum carburizing heat treatment to 58-62HRC. And then by the hobbing,Get the best tooth shape,tooth direction,to ensure that the gear of high precision and good impact toughness.
5.Input shaft and sun gear integrated structure,in order to improve the operation accuracy of the reducer.
6.Ring gear processing technology: Using internal gear slotting machine and hobbing machine; the precision of ring gear after processing can reach .GB7.
Planetary reducer characteristic:
1.Quiet operation:helical gears contribute to reduce vibration and noise.
2.High precision:standard backlash is 3 arcmin,ideal for precision control.
3.High rigidity & torque:high rigidity&torque were used integral ball bearings.
4.Adapter-bushing connection:can be attached to any motor all over the world.
5.No grease leakage:perfect dissolution using high viscosity anti-separation grease.
6.Maintenance-free:no need to replace the grease for the life of the unit.can be attached in any position.
Specifications | PX42 | PX60 | PX90 | PX120 | PX140 | PX180 | |||
Technal Parameters | |||||||||
Max. Torque | Nm | 1.5times rated torque | |||||||
Emergency Stop Torque | Nm | 2.5times rated torque | |||||||
Max. Radial Load | N | 780 | 1530 | 3250 | 6700 | 9400 | 14500 | ||
Max. Axial Load | N | 390 | 630 | 1300 | 3000 | 4700 | 7250 | ||
Torsional Rigidity | Nm/arcmin | 2.5 | 6 | 12 | 23 | 47 | 130 | ||
Max.Input Speed | rpm | 8000 | 8000 | 8000 | 8000 | 6000 | 6000 | ||
Rated Input Speed | rpm | 4000 | 4000 | 3000 | 3000 | 3000 | 3000 | ||
Noise | dB | ≤56 | ≤58 | ≤60 | ≤65 | ≤68 | ≤68 | ||
Average Life Time | h | 20000 | |||||||
Efficiency Of Full Load | % | L1≥95% L2≥90% | |||||||
Return Backlash | P1 | L1 | arcmin | / | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
L2 | arcmin | / | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ||
P2 | L1 | arcmin | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | |
L2 | arcmin | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 | ||
Moment Of Inertia Table | L1 | 3 | Kg*cm2 | / | 0.16 | 0.61 | 3.25 | 9.21 | 28.98 |
4 | Kg*cm2 | 0.03 | 0.14 | 0.48 | 2.74 | 7.54 | 23.67 | ||
5 | Kg*cm2 | 0.03 | 0.13 | 0.47 | 2.71 | 7.42 | 23.29 | ||
7 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 2.62 | 7.14 | 22.48 | ||
8 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 2.6 | / | / | ||
10 | Kg*cm2 | 0.03 | 0.13 | 0.4 | 2.57 | 7.03 | 22.51 | ||
L2 | 12 | Kg*cm2 | / | 0.13 | 0.45 | 0.45 | 2.63 | 7.3 | |
15 | Kg*cm2 | / | 0.13 | 0.45 | 0.45 | 2.63 | 7.3 | ||
20 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 0.45 | 2.63 | 7.3 | ||
25 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 0.4 | 2.63 | 7.3 | ||
28 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 0.45 | 2.43 | 7.1 | ||
30 | Kg*cm2 | / | 0.13 | 0.45 | 0.45 | 2.43 | 6.92 | ||
35 | Kg*cm2 | 0.03 | 0.13 | 0.4 | 0.4 | 2.43 | 7.1 | ||
40 | Kg*cm2 | 0.03 | 0.13 | 0.45 | 0.45 | 2.43 | 6.92 | ||
50 | Kg*cm2 | 0.03 | 0.13 | 0.4 | 0.4 | 2.39 | 6.92 | ||
70 | Kg*cm2 | 0.03 | 0.13 | 0.4 | 0.4 | 2.39 | 6.72 | ||
100 | Kg*cm2 | 0.03 | 0.13 | 0.4 | 0.4 | 2.39 | 6.72 | ||
Technical Parameter | Level | Ratio | PX42 | PX60 | PX90 | PX120 | PX140 | PX180 | |
Rated Torque | L1 | 3 | Nm | / | 40 | 105 | 165 | 360 | 880 |
4 | Nm | 17 | 45 | 130 | 230 | 480 | 880 | ||
5 | Nm | 15 | 45 | 130 | 230 | 480 | 1100 | ||
7 | Nm | 12 | 45 | 100 | 220 | 480 | 1100 | ||
8 | Nm | / | 40 | 90 | 200 | / | / | ||
10 | Nm | 10 | 30 | 75 | 175 | 360 | 770 | ||
L2 | 12 | Nm | / | 40 | 105 | 165 | 440 | 880 | |
15 | Nm | / | 40 | 105 | 165 | 360 | 880 | ||
20 | Nm | 17 | 45 | 130 | 230 | 480 | 880 | ||
25 | Nm | 15 | 45 | 130 | 230 | 480 | 880 | ||
28 | Nm | 17 | 45 | 130 | 230 | 480 | 1100 | ||
30 | Nm | / | 40 | 105 | 165 | 480 | 1100 | ||
35 | Nm | 10 | 30 | 130 | 230 | 480 | 1100 | ||
40 | Nm | 17 | 45 | 130 | 230 | 480 | 1100 | ||
50 | Nm | 15 | 45 | 130 | 230 | 480 | 1100 | ||
70 | Nm | 12 | 45 | 100 | 220 | 480 | 1100 | ||
100 | Nm | 10 | 30 | 75 | 175 | 360 | 770 | ||
Degree Of Protection | IP65 | ||||||||
Operation Temprature | ºC | – 10ºC to -90ºC | |||||||
Weight | L1 | kg | 0.5 | 1.25 | 3.75 | 8.5 | 16 | 28.5 | |
L2 | kg | 0.8 | 1.75 | 5.1 | 12 | 21.5 | 40 |
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/ UPS/ FEDEX/ EMS/ TNT
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
Application: | Universal, Industrial, Household Appliances, Automation Equipment |
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Operating Speed: | Low Speed |
Excitation Mode: | Excited |
Function: | Driving |
Casing Protection: | Closed Type |
Type: | Planetary Gear Reducer |
Samples: |
US$ 199/Piece
1 Piece(Min.Order) | |
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Customization: |
Available
| Customized Request |
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Concept of Coaxial and Parallel Shaft Arrangements in Planetary Gearboxes
In planetary gearboxes, the arrangement of shafts plays a crucial role in determining the gearbox’s overall structure and functionality. The two common shaft arrangements are coaxial and parallel configurations:
Coaxial Shaft Arrangement: In a coaxial arrangement, the input shaft and output shaft are positioned along the same axis, resulting in a compact and streamlined design. The planetary gears and other components are aligned concentrically around the central axis, allowing for efficient power transmission and reduced space requirements. Coaxial planetary gearboxes are commonly used in applications where space is limited, and a compact form factor is essential. They are often employed in robotics, automotive systems, and aerospace mechanisms.
Parallel Shaft Arrangement: In a parallel arrangement, the input and output shafts are positioned parallel to each other but on different axes. The planetary gears are aligned in a way that allows the power to be transmitted from the input shaft to the output shaft via a combination of meshing gears. This arrangement allows for a larger gear diameter and higher torque transmission capabilities. Parallel planetary gearboxes are often used in applications requiring high torque and heavy-duty performance, such as industrial machinery, construction equipment, and material handling systems.
The choice between coaxial and parallel shaft arrangements depends on the specific requirements of the application. Coaxial configurations are favored for compactness and efficient power transmission, while parallel configurations excel in handling higher torque and heavy loads. Both arrangements offer distinct advantages and are chosen based on factors like available space, torque demands, load characteristics, and overall system design.
Advantages of Backlash Reduction Mechanisms in Planetary Gearboxes
Backlash reduction mechanisms in planetary gearboxes offer several advantages that contribute to improved performance and precision:
Improved Positioning Accuracy: Backlash, or the play between gear teeth, can lead to positioning errors in applications where precise movement is crucial. Reduction mechanisms help minimize or eliminate this play, resulting in more accurate positioning.
Better Reversal Characteristics: Backlash can cause a delay in reversing the direction of motion. With reduction mechanisms, the reversal is smoother and more immediate, making them suitable for applications requiring quick changes in direction.
Enhanced Efficiency: Backlash can lead to energy losses and reduced efficiency due to the impacts between gear teeth. Reduction mechanisms minimize these impacts, improving overall power transmission efficiency.
Reduced Noise and Vibration: Backlash can contribute to noise and vibration in gearboxes, affecting both the equipment and the surrounding environment. By reducing backlash, the noise and vibration levels are significantly decreased.
Better Wear Protection: Backlash can accelerate wear on gear teeth, leading to premature gearbox failure. Reduction mechanisms help distribute the load more evenly across the teeth, extending the lifespan of the gearbox.
Enhanced System Stability: In applications where stability is crucial, such as robotics and automation, backlash reduction mechanisms contribute to smoother operation and reduced oscillations.
Compatibility with Precision Applications: Industries such as aerospace, medical equipment, and optics require high precision. Backlash reduction mechanisms make planetary gearboxes suitable for these applications by ensuring accurate and reliable motion.
Increased Control and Performance: In applications where control is critical, such as CNC machines and robotics, reduction mechanisms provide better control over the motion and enable finer adjustments.
Minimized Error Accumulation: In systems with multiple gear stages, backlash can accumulate, leading to larger positioning errors. Reduction mechanisms help minimize this error accumulation, maintaining accuracy throughout the system.
Overall, incorporating backlash reduction mechanisms in planetary gearboxes leads to improved accuracy, efficiency, reliability, and performance, making them essential components in precision-driven industries.
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.
editor by CX 2023-12-08