Product Description
Product Description
The NB060A series planetary gearboxes are designed and machined as a single unit with special tapered roller bearings to provide high radial load, high torque, ultra-precision, and small size. The ND series uses in highly rigid industries such as fiber optic laser equipment, floor track equipment, robot seventh axis, Parallel robots (spider hand) machine tools, and rotating arms.
Product Name: High Precision Planetary Reducer
Product Series: NB060A Series
Product features: high torque, high load, ultra-precision, small size
Product Description:
Integrated design concept with high-strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 3 to 100
Frame design: increases torque and optimizes power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years
Our Advantages
High torque
High load
ultra-precision
Small size
Detailed Photos
Product Parameters
| Segment number | Double segment | |||||||||||||
| Ratio | i | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 60 | 70 | 80 | 90 | 100 |
| Rated output torque | Nm | 50 | 45 | 55 | 50 | 45 | 40 | 35 | 55 | 50 | 45 | 40 | 35 | 35 |
| Emergency stop torque | Nm | Three times of Maximum Output Torque | ||||||||||||
| Rated input speed | Rpm | 5000 | ||||||||||||
| Max input speed | Rpm | 10000 | ||||||||||||
| Ultraprecise backlash | arcmin | / | ||||||||||||
| Precision backlash | arcmin | ≤5 | ||||||||||||
| Standard backlash | arcmin | ≤7 | ||||||||||||
| Torsional rigidity | Nm/arcmin | 7 | ||||||||||||
| Max.bending moment | Nm | 1530 | ||||||||||||
| Max.axial force | N | 765 | ||||||||||||
| Service life | hr | 20000(10000 under continuous operation) | ||||||||||||
| Efficiency | % | ≥94% | ||||||||||||
| Weight | kg | 1.9 | ||||||||||||
| Operating Temperature | ºC | -10ºC~+90ºC | ||||||||||||
| Lubrication | Synthetic grease | |||||||||||||
| Protection class | IP64 | |||||||||||||
| Mounting Position | All directions | |||||||||||||
| Noise level(N1=3000rpm,non-loaded) | dB(A) | ≤60 | ||||||||||||
| Rotary inertia | Kg·cm² | 0.13 | ||||||||||||
Applicable Industries
Packaging Machinery Mechanical Hand Textile Machinery
Non Standard automation Machine Tool Printing Equipment
Certifications
Company Profile
DESBOER (HangZhou) Transmission Technology Co., Ltd. is a subsidiary of DESBOER (China), which is committed to the design, development, customized production and sales of high precision planetary reducer as 1 of the technology company. Our company has over 10 years of design, production and sales experience, the main products are the high precision planetary reducer, gear, rack, etc., with high quality, short delivery period, high cost performance and other advantages to better serve the demand of global customers. It is worth noting that we remove the intermediate link sale from the factory directly to customers, so that you can get the most ideal price and also get our best quality service simultaneously.
About Research
In order to strengthen the advantages of products in the international market, the head company in Kyoto, Japan to established KABUSHIKIKAISYA KYOEKI, mainly engaged in the development of DESBOER high precision planetary reducer, high precision of transmission components such as the development work, to provide the most advanced design technology and the most high-quality products for the international market.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery, Marine, Agricultural Machinery, CNC Machine |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Plantery Type |
| Hardness: | Hardened Tooth Surface |
| Installation: | All Directions |
| Step: | Double-Step |
| Customization: |
Available
| Customized Request |
|---|
The Role of Harmonic Drive Servo Gearboxes in Advanced Motion Control Systems
Harmonic Drive servo gearboxes play a crucial role in advanced motion control systems by offering several unique features:
1. High Precision: Harmonic Drive gearboxes are known for their exceptional precision due to the unique gear mechanism they employ. This precision is essential for achieving accurate and repeatable motion control.
2. Zero Backlash: Harmonic Drive gearboxes are designed with zero backlash, which means there is no lost motion between input and output. This feature ensures that the commanded motion is precisely transferred without any delays or inaccuracies.
3. Compact Design: Harmonic Drive gearboxes have a compact structure, making them suitable for applications with limited space. The compact design allows for easy integration into various systems.
4. High Torque Transmission: Despite their compact size, harmonic drive gearboxes can transmit high torque efficiently. This feature is essential for applications that require both high precision and high torque.
5. Smooth Motion: The unique wave generator mechanism in harmonic drive gearboxes contributes to smooth and continuous motion, which is particularly beneficial in applications involving robotic arms, satellite positioning, and more.
6. Reduction Ratios: Harmonic Drive gearboxes offer high reduction ratios in a single-stage, allowing for precise control of output motion even when input motion is at high speeds.
7. Low Maintenance: The absence of backlash and the use of high-quality materials result in reduced wear and maintenance requirements, enhancing the longevity of the gearbox.
8. Advanced Applications: Harmonic Drive gearboxes are commonly used in robotics, aerospace, medical equipment, automation, and other industries where precision and reliability are paramount.
Overall, harmonic drive servo gearboxes are a critical component in achieving advanced motion control, enabling engineers to design and operate complex systems with unparalleled precision and accuracy.
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.
Industries Utilizing Servo Gearboxes
Servo gearboxes find applications in various industries where precise motion control is essential:
1. Robotics and Automation: Servo gearboxes are widely used in robotics and automation systems for accurate and dynamic movement control, enhancing the performance of industrial robots, collaborative robots (cobots), and other automated machinery.
2. Aerospace and Aviation: The aerospace industry utilizes servo gearboxes in aircraft control systems, including ailerons, elevators, and rudders, to ensure precise and responsive flight control.
3. Medical Equipment: Medical devices and equipment, such as surgical robots, diagnostic instruments, and imaging systems, rely on servo gearboxes to achieve precise and controlled movements for medical procedures and patient care.
4. Manufacturing and Assembly: Servo gearboxes are essential in manufacturing and assembly lines for tasks such as pick-and-place operations, conveyor systems, packaging machinery, and precision machining.
5. Automotive Industry: Automotive manufacturing and testing processes benefit from servo gearboxes for tasks such as vehicle assembly, quality control, and testing systems.
6. Semiconductor Manufacturing: High-precision processes in semiconductor manufacturing, including wafer handling and positioning, utilize servo gearboxes to maintain accuracy in microchip fabrication.
7. Material Handling: Servo gearboxes play a role in material handling systems, such as automated guided vehicles (AGVs), palletizers, and cranes, ensuring smooth and controlled movement of goods.
8. Entertainment and Theme Parks: Roller coasters, animatronics, and other entertainment attractions utilize servo gearboxes to create dynamic and engaging experiences for visitors.
9. Textile Industry: Servo gearboxes are used in textile machinery for processes like spinning, weaving, and knitting, enabling precise control of thread tension and fabric movement.
10. Research and Development: In research settings, servo gearboxes are employed for experimentation, testing, and prototyping of mechanical systems and prototypes.
Servo gearboxes provide the necessary precision, flexibility, and reliability required in these industries, enabling advanced motion control and enhancing the efficiency and performance of various applications.
editor by CX 2024-05-16
China wholesaler Desboer ND090 Series Double Stage Ratio16/20/25/35/40/50/70/100 Transmission Planetary Gearbox Helical Gearbox for Servo Motor gearbox definition
Product Description
Product Description
The ND090 series planetary gearboxes are designed and machined as a single unit with special tapered roller bearings to provide high radial load, high torque, ultra-precision, and small size. The ND series uses in highly rigid industries such as fiber optic laser equipment, floor track equipment, robot seventh axis, Parallel robots (spider hand) machine tools, and rotating arms.
Product Name: High Precision Planetary Reducer
Product Series: ND090 Series
Product features: high torque, high load, ultra-precision, small size
Product Description:
Integrated design concept with high-strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 3 to 100
Frame design: increases torque and optimizes power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years
Our Advantages
High torque
High load
ultra-precision
Small size
Detailed Photos
Product Parameters
| Segment number | Double segment | ||||||||
| Ratio | i | 16 | 20 | 25 | 35 | 40 | 50 | 70 | 100 |
| Rated output torque | Nm | 120 | 120 | 150 | 130 | 120 | 150 | 130 | 95 |
| Emergency stop torque | Nm | Three times of Maximum Output Torque | |||||||
| Rated input speed | Rpm | 4000 | |||||||
| Max input speed | Rpm | 8000 | |||||||
| Ultraprecise backlash | arcmin | / | |||||||
| Precision backlash | arcmin | ≤5 | |||||||
| Standard backlash | arcmin | ≤7 | |||||||
| Torsional rigidity | Nm/arcmin | 31 | |||||||
| Max.bending moment | Nm | 235 | |||||||
| Max.axial force | N | 2850 | |||||||
| Service life | hr | 30000(15000 under continuous operation) | |||||||
| Efficiency | % | ≥94% | |||||||
| Weight | kg | 3.7 | |||||||
| Operating Temperature | ºC | -10ºC~+90ºC | |||||||
| Lubrication | Synthetic grease | ||||||||
| Protection class | IP64 | ||||||||
| Mounting Position | All directions | ||||||||
| Noise level(N1=3000rpm,non-loaded) | dB(A) | ≤60 | |||||||
| Rotary inertia | Kg·cm² | 0.13 | |||||||
Applicable Industries
Packaging Machinery Mechanical Hand Textile Machinery
Non Standard automation Machine Tool Printing Equipment
Certifications
Company Profile
DESBOER (HangZhou) Transmission Technology Co., Ltd. is a subsidiary of DESBOER (China), which is committed to the design, development, customized production and sales of high precision planetary reducer as 1 of the technology company. Our company has over 10 years of design, production and sales experience, the main products are the high precision planetary reducer, gear, rack, etc., with high quality, short delivery period, high cost performance and other advantages to better serve the demand of global customers. It is worth noting that we remove the intermediate link sale from the factory directly to customers, so that you can get the most ideal price and also get our best quality service simultaneously.
About Research
In order to strengthen the advantages of products in the international market, the head company in Kyoto, Japan to established KABUSHIKIKAISYA KYOEKI, mainly engaged in the development of DESBOER high precision planetary reducer, high precision of transmission components such as the development work, to provide the most advanced design technology and the most high-quality products for the international market.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery, Marine, Agricultural Machinery, CNC Machine |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Plantery Type |
| Hardness: | Hardened Tooth Surface |
| Installation: | All Directions |
| Step: | Single-Step |
| Customization: |
Available
| Customized Request |
|---|
The Role of Harmonic Drive Servo Gearboxes in Advanced Motion Control Systems
Harmonic Drive servo gearboxes play a crucial role in advanced motion control systems by offering several unique features:
1. High Precision: Harmonic Drive gearboxes are known for their exceptional precision due to the unique gear mechanism they employ. This precision is essential for achieving accurate and repeatable motion control.
2. Zero Backlash: Harmonic Drive gearboxes are designed with zero backlash, which means there is no lost motion between input and output. This feature ensures that the commanded motion is precisely transferred without any delays or inaccuracies.
3. Compact Design: Harmonic Drive gearboxes have a compact structure, making them suitable for applications with limited space. The compact design allows for easy integration into various systems.
4. High Torque Transmission: Despite their compact size, harmonic drive gearboxes can transmit high torque efficiently. This feature is essential for applications that require both high precision and high torque.
5. Smooth Motion: The unique wave generator mechanism in harmonic drive gearboxes contributes to smooth and continuous motion, which is particularly beneficial in applications involving robotic arms, satellite positioning, and more.
6. Reduction Ratios: Harmonic Drive gearboxes offer high reduction ratios in a single-stage, allowing for precise control of output motion even when input motion is at high speeds.
7. Low Maintenance: The absence of backlash and the use of high-quality materials result in reduced wear and maintenance requirements, enhancing the longevity of the gearbox.
8. Advanced Applications: Harmonic Drive gearboxes are commonly used in robotics, aerospace, medical equipment, automation, and other industries where precision and reliability are paramount.
Overall, harmonic drive servo gearboxes are a critical component in achieving advanced motion control, enabling engineers to design and operate complex systems with unparalleled precision and accuracy.
Contribution of Servo Gearboxes to Energy Efficiency in Automated Systems
Servo gearboxes play a crucial role in enhancing energy efficiency in various automated systems by addressing several key aspects:
1. Precise Control: Servo gearboxes enable precise and accurate control over motion, allowing automated systems to perform tasks with minimal wastage of energy. Precise positioning reduces the need for unnecessary movements and adjustments.
2. Variable Speed Operation: Servo gearboxes offer the flexibility to operate at different speeds based on the application’s requirements. This capability ensures that the system uses only the necessary amount of energy for a given task, avoiding excessive power consumption.
3. Reduced Inertia: Servo gearboxes are designed to minimize inertia, which is the resistance to changes in motion. Lower inertia results in quicker response times and less energy required to accelerate or decelerate moving parts.
4. Regenerative Braking: Some servo systems are equipped with regenerative braking mechanisms. During deceleration or braking, energy generated is fed back into the system or stored for later use, reducing energy wastage.
5. Dynamic Load Management: Servo gearboxes can adapt to varying load conditions in real-time. They adjust torque and speed based on the load, optimizing energy usage and preventing overconsumption of power.
6. Reduced Heat Generation: Efficient servo gearboxes produce less heat during operation, leading to lower energy losses. This reduction in heat generation contributes to overall energy efficiency and extends the lifespan of components.
7. Smart Control Algorithms: Modern servo systems incorporate intelligent control algorithms that optimize the use of energy. These algorithms manage power distribution, minimize idle time, and synchronize movements for optimal efficiency.
8. Energy Recovery: In certain applications, servo gearboxes can capture and reuse energy that would otherwise be dissipated as heat. This energy recovery further contributes to the overall energy efficiency of the system.
9. Low Friction Designs: Servo gearboxes often incorporate low-friction components and efficient lubrication systems to minimize energy losses due to friction.
10. Matched Components: Properly matched servo gearbox and motor combinations ensure that the system operates at its peak efficiency point, minimizing energy consumption.
By incorporating these energy-saving features and capabilities, servo gearboxes enhance the energy efficiency of automated systems, making them more environmentally friendly and cost-effective over the long term.
Industries Utilizing Servo Gearboxes
Servo gearboxes find applications in various industries where precise motion control is essential:
1. Robotics and Automation: Servo gearboxes are widely used in robotics and automation systems for accurate and dynamic movement control, enhancing the performance of industrial robots, collaborative robots (cobots), and other automated machinery.
2. Aerospace and Aviation: The aerospace industry utilizes servo gearboxes in aircraft control systems, including ailerons, elevators, and rudders, to ensure precise and responsive flight control.
3. Medical Equipment: Medical devices and equipment, such as surgical robots, diagnostic instruments, and imaging systems, rely on servo gearboxes to achieve precise and controlled movements for medical procedures and patient care.
4. Manufacturing and Assembly: Servo gearboxes are essential in manufacturing and assembly lines for tasks such as pick-and-place operations, conveyor systems, packaging machinery, and precision machining.
5. Automotive Industry: Automotive manufacturing and testing processes benefit from servo gearboxes for tasks such as vehicle assembly, quality control, and testing systems.
6. Semiconductor Manufacturing: High-precision processes in semiconductor manufacturing, including wafer handling and positioning, utilize servo gearboxes to maintain accuracy in microchip fabrication.
7. Material Handling: Servo gearboxes play a role in material handling systems, such as automated guided vehicles (AGVs), palletizers, and cranes, ensuring smooth and controlled movement of goods.
8. Entertainment and Theme Parks: Roller coasters, animatronics, and other entertainment attractions utilize servo gearboxes to create dynamic and engaging experiences for visitors.
9. Textile Industry: Servo gearboxes are used in textile machinery for processes like spinning, weaving, and knitting, enabling precise control of thread tension and fabric movement.
10. Research and Development: In research settings, servo gearboxes are employed for experimentation, testing, and prototyping of mechanical systems and prototypes.
Servo gearboxes provide the necessary precision, flexibility, and reliability required in these industries, enabling advanced motion control and enhancing the efficiency and performance of various applications.
editor by CX 2024-05-15
China factory High Torque 750W Servo Motor Spur Transmission Planetary Gearboxes cycloidal gearbox
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
Characteristics:
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
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
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Motorcycle, Machinery, Marine, Agricultural Machinery, Manipulator Machinery |
|---|---|
| Function: | Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Step: | Double-Step |
| Samples: |
US$ 199/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Handling Backlash and Ensuring Precise Positioning in Servo Gearboxes
Servo gearboxes play a critical role in minimizing backlash and ensuring precise positioning in motion control systems:
1. Reduced Backlash Gearing: Many servo gearboxes utilize reduced backlash gearing technology. This involves designing gears with tighter tolerances and improved meshing profiles, resulting in minimal play between gear teeth. This reduces or eliminates backlash, which is essential for accurate motion control.
2. Preloading: Some servo gearboxes employ preloading mechanisms to remove any gaps between gears. By applying a controlled axial load to the gears, the meshing teeth remain in constant contact, eliminating backlash and enhancing precision.
3. Stiffness and Rigidity: Servo gearboxes are designed to be stiff and rigid, which helps minimize elastic deformation under load. This stiffness prevents gear teeth from deflecting, reducing the potential for backlash and maintaining accurate positioning.
4. High Gear Meshing Quality: The manufacturing process of servo gearboxes focuses on producing high-quality gears with precise tooth profiles and minimal manufacturing variations. This ensures consistent and smooth gear meshing, minimizing the likelihood of backlash.
5. Closed-Loop Control: Combining servo gearboxes with closed-loop control systems allows for real-time feedback on position and speed. Any deviation from the desired position can be quickly corrected by adjusting the motor’s output, compensating for any inherent backlash and ensuring precise positioning.
6. Advanced Gear Coatings: Some servo gearboxes incorporate advanced gear coatings or treatments that improve the meshing characteristics and reduce friction. This contributes to smoother gear engagement and minimizes backlash effects.
7. Inertia Matching: Properly matching the inertia of the load to the servo motor and gearbox combination reduces the likelihood of overshooting or oscillations during positioning. Accurate inertia matching enhances the control system’s ability to maintain precise positioning.
Servo gearboxes’ ability to handle backlash and ensure precise positioning is crucial for applications that require high accuracy, such as robotics, CNC machines, and automated manufacturing processes. By employing advanced design techniques and technologies, servo gearboxes contribute to achieving repeatable and accurate motion control.
Precision of Gear Tooth Profiles in Servo Gearboxes
Manufacturers take several measures to ensure the precision of gear tooth profiles in servo gearboxes:
1. Advanced Manufacturing Processes: Manufacturers use advanced machining techniques such as CNC (Computer Numerical Control) machining and grinding to achieve high precision in gear tooth profiles. These processes allow for accurate shaping and finishing of the gear teeth.
2. Quality Materials: High-quality materials with consistent properties are selected for manufacturing gear components. This ensures uniformity in the gear teeth and minimizes variations that could affect precision.
3. Tight Tolerances: Manufacturers set tight tolerances for gear tooth dimensions, including pitch, profile, and helix angle. This helps to maintain precise engagement between gear teeth, reducing backlash and ensuring accurate motion control.
4. Quality Control: Rigorous quality control measures are implemented at various stages of the manufacturing process. This includes inspections, measurements, and tests to verify that gear tooth profiles meet the required specifications.
5. CNC Gear Inspection: Manufacturers use CNC gear inspection machines that can measure and analyze gear tooth profiles with high accuracy. These machines generate detailed reports about tooth geometry, ensuring compliance with design specifications.
6. Computer-Aided Design (CAD) and Simulation: Manufacturers use CAD software to design gear tooth profiles with precision. Simulation tools analyze how different factors, such as material properties and manufacturing processes, affect the final gear tooth shape.
7. Profile Corrections: In some cases, manufacturers apply profile corrections to optimize gear tooth profiles. These corrections compensate for any deviations that may occur during the manufacturing process.
8. Feedback from Application: Manufacturers often collaborate closely with end-users to gather feedback on the performance of gearboxes in real-world applications. This feedback helps refine the manufacturing process and improve the precision of gear tooth profiles.
The combination of advanced manufacturing techniques, strict quality control, and continuous improvement processes ensures that servo gearboxes maintain the precision required for accurate motion control in various applications.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2024-05-14
China Best Sales Double Stage Ratio 16-100 ND 064amm Type Transmission Planetary Gearbox Helical Gearbox for Servo Motor, Desboer sequential gearbox
Product Description
Product Description
The ND064A series planetary gearboxes are designed and machined as a single unit with special tapered roller bearings to provide high radial load, high torque, ultra-precision, and small size. The ND series uses in highly rigid industries such as fiber optic laser equipment, floor track equipment, robot seventh axis, Parallel robots (spider hand) machine tools, and rotating arms.
Product Name: High Precision Planetary Reducer
Product Series: ND064A Series
Product features: high torque, high load, ultra-precision, small size
Product Description:
Integrated design concept with high-strength bearings ensure the product itself is durable and efficient
A variety of output ideas such as shaft output, flange and gear are available.
1 arc minute ≤ backlash ≤ 3 arc minutes
Reduction ratios ranging from 3 to 100
Frame design: increases torque and optimizes power transmission
Optimised selection of oil seals: reduces friction and laminate transmission efficiency
Protection class IP65
Warranty: 2 years
Our Advantages
High torque
High load
ultra-precision
Small size
Detailed Photos
Product Parameters
| Segment number | Double segment | ||||||||
| Ratio | i | 16 | 20 | 25 | 35 | 40 | 50 | 70 | 100 |
| Rated output torque | Nm | 45 | 45 | 55 | 45 | 45 | 55 | 45 | 35 |
| Emergency stop torque | Nm | Three times of Maximum Output Torque | |||||||
| Rated input speed | Rpm | 5000 | |||||||
| Max input speed | Rpm | 10000 | |||||||
| Ultraprecise backlash | arcmin | / | |||||||
| Precision backlash | arcmin | ≤5 | |||||||
| Standard backlash | arcmin | ≤7 | |||||||
| Torsional rigidity | Nm/arcmin | 13 | |||||||
| Max.bending moment | Nm | 125 | |||||||
| Max.axial force | N | 1050 | |||||||
| Service life | hr | 30000(15000 under continuous operation) | |||||||
| Efficiency | % | ≥94% | |||||||
| Weight | kg | 1.6 | |||||||
| Operating Temperature | ºC | -10ºC~+90ºC | |||||||
| Lubrication | Synthetic grease | ||||||||
| Protection class | IP64 | ||||||||
| Mounting Position | All directions | ||||||||
| Noise level(N1=3000rpm,non-loaded) | dB(A) | ≤58 | |||||||
| Rotary inertia | Kg·cm² | 0.03 | |||||||
Applicable Industries
Packaging Machinery Mechanical Hand Textile Machinery
Non Standard automation Machine Tool Printing Equipment
Certifications
Company Profile
DESBOER (HangZhou) Transmission Technology Co., Ltd. is a subsidiary of DESBOER (China), which is committed to the design, development, customized production and sales of high precision planetary reducer as 1 of the technology company. Our company has over 10 years of design, production and sales experience, the main products are the high precision planetary reducer, gear, rack, etc., with high quality, short delivery period, high cost performance and other advantages to better serve the demand of global customers. It is worth noting that we remove the intermediate link sale from the factory directly to customers, so that you can get the most ideal price and also get our best quality service simultaneously.
About Research
In order to strengthen the advantages of products in the international market, the head company in Kyoto, Japan to established KABUSHIKIKAISYA KYOEKI, mainly engaged in the development of DESBOER high precision planetary reducer, high precision of transmission components such as the development work, to provide the most advanced design technology and the most high-quality products for the international market.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery, Marine, Agricultural Machinery, CNC Machine |
|---|---|
| Function: | Change Drive Torque, Speed Changing, Speed Reduction |
| Layout: | Plantery Type |
| Hardness: | Hardened Tooth Surface |
| Installation: | All Directions |
| Step: | Double-Step |
| Customization: |
Available
| Customized Request |
|---|
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.
Precision of Gear Tooth Profiles in Servo Gearboxes
Manufacturers take several measures to ensure the precision of gear tooth profiles in servo gearboxes:
1. Advanced Manufacturing Processes: Manufacturers use advanced machining techniques such as CNC (Computer Numerical Control) machining and grinding to achieve high precision in gear tooth profiles. These processes allow for accurate shaping and finishing of the gear teeth.
2. Quality Materials: High-quality materials with consistent properties are selected for manufacturing gear components. This ensures uniformity in the gear teeth and minimizes variations that could affect precision.
3. Tight Tolerances: Manufacturers set tight tolerances for gear tooth dimensions, including pitch, profile, and helix angle. This helps to maintain precise engagement between gear teeth, reducing backlash and ensuring accurate motion control.
4. Quality Control: Rigorous quality control measures are implemented at various stages of the manufacturing process. This includes inspections, measurements, and tests to verify that gear tooth profiles meet the required specifications.
5. CNC Gear Inspection: Manufacturers use CNC gear inspection machines that can measure and analyze gear tooth profiles with high accuracy. These machines generate detailed reports about tooth geometry, ensuring compliance with design specifications.
6. Computer-Aided Design (CAD) and Simulation: Manufacturers use CAD software to design gear tooth profiles with precision. Simulation tools analyze how different factors, such as material properties and manufacturing processes, affect the final gear tooth shape.
7. Profile Corrections: In some cases, manufacturers apply profile corrections to optimize gear tooth profiles. These corrections compensate for any deviations that may occur during the manufacturing process.
8. Feedback from Application: Manufacturers often collaborate closely with end-users to gather feedback on the performance of gearboxes in real-world applications. This feedback helps refine the manufacturing process and improve the precision of gear tooth profiles.
The combination of advanced manufacturing techniques, strict quality control, and continuous improvement processes ensures that servo gearboxes maintain the precision required for accurate motion control in various applications.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2024-05-10
China manufacturer 1500W Servo Motor Ratio 50: 1 Transmission Helical Planetary Gearbox synchromesh gearbox
Product Description
1500W Servo Motor Ratio 50:1 Transmission Helical Planetary Gearbox
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
Parameters:
1.Specail flange joint output, can satisfy with the biggest installation.
2.Shorter size,low installation space.
3.Helical gear transmission,low return backlash,precision location.
4.Double bracing cage planetary shelf structure.high reliable. Can suit reversible rotation frequently.
5.With axial clearance adjustment function.
6.The rotating frame bearing can be switched. After being changed into angular contact bearing, the bearing capacity of axial force and radial force will be greatly reduced.
7.Impact resistance, can adapt to high acceleration and deceleration conditions.
8.Size range:64-140mm
9.Speed ratio range:3-100
10.Precision range:1-3 arcmin(P1 level);3-5 arcmin(P2 level)
Product Parameters
| Specifications | PG64 | PG90 | PG110 | |||
| Technal Parameters | ||||||
| Max. Torque | Nm | 3times rated torque | ||||
| Emergency Stop Torque | Nm | 3times rated torque | ||||
| Max. Radial Load | N | 2050 | 4100 | 8200 | ||
| Max. Axial Load | N | 513 | 1571 | 2050 | ||
| Torsional Rigidity | Nm/arcmin | 13 | 31 | 82 | ||
| Max.Input Speed | rpm | 6000 | 6000 | 4500-6000 | ||
| Rated Input Speed | rpm | 4000 | 3000 | 3000 | ||
| Noise | dB | ≤58 | ≤60 | ≤65 | ||
| Average Life Time | h | 20000 | ||||
| Efficiency Of Full Load | % | L1≥95% L2≥90% | ||||
| Return Backlash | P1 | L1 | arcmin | ≤3 | ≤3 | ≤3 |
| L2 | arcmin | ≤5 | ≤5 | ≤5 | ||
| P2 | L1 | arcmin | ≤5 | ≤5 | ≤5 | |
| L2 | arcmin | ≤8 | ≤8 | ≤8 | ||
| Moment Of Inertia Table | L1 | 4 | Kg*cm2 | 0.13 | 0.51 | 2.87 |
| 5 | Kg*cm2 | 0.13 | 0.47 | 2.71 | ||
| 7 | Kg*cm2 | 0.13 | 0.45 | 2.62 | ||
| 10 | Kg*cm2 | 0.03 | 0.44 | 2.57 | ||
| L2 | 16 | Kg*cm2 | 0.03 | 0.23 | 0.47 | |
| 20 | Kg*cm2 | 0.03 | 0.23 | 0.47 | ||
| 25 | Kg*cm2 | 0.03 | 0.23 | 0.47 | ||
| 28 | Kg*cm2 | 0.03 | 0.23 | 0.47 | ||
| 35 | Kg*cm2 | 0.03 | 0.23 | 0.47 | ||
| 40 | Kg*cm2 | 0.03 | 0.23 | 0.47 | ||
| 50 | Kg*cm2 | 0.03 | 0.2 | 0.44 | ||
| 70 | Kg*cm2 | 0.03 | 0.2 | 0.44 | ||
| 100 | Kg*cm2 | 0.03 | 0.2 | 0.44 | ||
| Technical Parameter | Level | Ratio | PG64 | PG90 | PG110 | |
| Rated Torque | L1 | 4 | Nm | 40 | 120 | 220 |
| 5 | Nm | 40 | 125 | 260 | ||
| 7 | Nm | 40 | 125 | 260 | ||
| 10 | Nm | 35 | 80 | 160 | ||
| L2 | 16 | Nm | 50 | 120 | 300 | |
| 20 | Nm | 50 | 120 | 300 | ||
| 25 | Nm | 50 | 125 | 350 | ||
| 28 | Nm | 50 | 120 | 300 | ||
| 35 | Nm | 50 | 125 | 350 | ||
| 40 | Nm | 50 | 125 | 350 | ||
| 50 | Nm | 50 | 125 | 350 | ||
| 70 | Nm | 50 | 125 | 350 | ||
| 100 | Nm | 35 | 80 | 220 | ||
| Degree Of Protection | IP65 | |||||
| Operation Temprature | ºC | – 10ºC to -90ºC | ||||
| Weight | L1 | kg | 1.3 | 3.4 | 7.1 | |
| L2 | kg | 1.9 | 4.7 | 9.5 | ||
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
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
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Motorcycle, Machinery, Marine, Agricultural Machinery, Textile Machinery |
|---|---|
| Function: | Change Drive Direction, Speed Changing, Speed Reduction |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Step: | Single-Step |
| Samples: |
US$ 518/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Handling Backlash and Ensuring Precise Positioning in Servo Gearboxes
Servo gearboxes play a critical role in minimizing backlash and ensuring precise positioning in motion control systems:
1. Reduced Backlash Gearing: Many servo gearboxes utilize reduced backlash gearing technology. This involves designing gears with tighter tolerances and improved meshing profiles, resulting in minimal play between gear teeth. This reduces or eliminates backlash, which is essential for accurate motion control.
2. Preloading: Some servo gearboxes employ preloading mechanisms to remove any gaps between gears. By applying a controlled axial load to the gears, the meshing teeth remain in constant contact, eliminating backlash and enhancing precision.
3. Stiffness and Rigidity: Servo gearboxes are designed to be stiff and rigid, which helps minimize elastic deformation under load. This stiffness prevents gear teeth from deflecting, reducing the potential for backlash and maintaining accurate positioning.
4. High Gear Meshing Quality: The manufacturing process of servo gearboxes focuses on producing high-quality gears with precise tooth profiles and minimal manufacturing variations. This ensures consistent and smooth gear meshing, minimizing the likelihood of backlash.
5. Closed-Loop Control: Combining servo gearboxes with closed-loop control systems allows for real-time feedback on position and speed. Any deviation from the desired position can be quickly corrected by adjusting the motor’s output, compensating for any inherent backlash and ensuring precise positioning.
6. Advanced Gear Coatings: Some servo gearboxes incorporate advanced gear coatings or treatments that improve the meshing characteristics and reduce friction. This contributes to smoother gear engagement and minimizes backlash effects.
7. Inertia Matching: Properly matching the inertia of the load to the servo motor and gearbox combination reduces the likelihood of overshooting or oscillations during positioning. Accurate inertia matching enhances the control system’s ability to maintain precise positioning.
Servo gearboxes’ ability to handle backlash and ensure precise positioning is crucial for applications that require high accuracy, such as robotics, CNC machines, and automated manufacturing processes. By employing advanced design techniques and technologies, servo gearboxes contribute to achieving repeatable and accurate motion control.
Contribution of Servo Gearboxes to Smooth Acceleration and Deceleration
Servo gearboxes play a crucial role in ensuring smooth acceleration and deceleration of machinery in motion control systems:
1. Precise Control: Servo gearboxes provide precise control over the rotational speed and torque of the output shaft. This control allows for gradual and controlled changes in speed, resulting in smooth acceleration and deceleration.
2. Feedback Mechanism: Servo systems typically incorporate feedback devices such as encoders or resolvers. These devices continuously monitor the actual position and speed of the output shaft and provide real-time feedback to the controller. This feedback enables the controller to adjust the input signals to the servo gearbox, ensuring accurate and smooth motion transitions.
3. Dynamic Response: Servo gearboxes are designed for high dynamic response, meaning they can quickly adjust their speed and torque based on the controller’s commands. This responsiveness allows for rapid and smooth changes in speed and direction without sudden jerks or jolts.
4. Programmable Profiles: Many servo systems offer the capability to program acceleration and deceleration profiles. Engineers can define specific acceleration and deceleration curves tailored to the application’s requirements. These profiles ensure that the machinery achieves the desired speed changes gradually and smoothly.
5. Reduced Wear and Tear: The controlled and gradual acceleration and deceleration provided by servo gearboxes reduce the wear and tear on mechanical components. Sudden changes in speed can lead to shock loads and vibration, potentially damaging the machinery. Servo gearboxes help mitigate these effects, extending the lifespan of components.
6. Increased Productivity: Smooth acceleration and deceleration reduce the chances of product damage, improve product quality, and enhance the overall efficiency of the process. This is particularly important in applications where precise motion control is critical.
Overall, servo gearboxes contribute to the seamless acceleration and deceleration of machinery by providing accurate control, dynamic responsiveness, and programmable motion profiles. These features ensure that machinery can achieve the desired speed changes while maintaining precision, efficiency, and longevity.
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.
editor by CX 2024-05-09
China factory Planetary Gearbox Gear Box Reduction Gearbox Speed Reducer Epicyclic Motor Transmission Machine Housing Best Price Unit Servo Hydraulic Planetary Gearboxes gearbox engine
Product Description
Planetary Gearbox gear box reduction gearbox speed reducer epicyclic motor transmission machine housing best price unit servo hydraulic Planetary Gearboxes
Product Description
We are a state-of-the-art manufacturing facility dedicated to the production of high-quality gearboxes, an essential element in power transmission and motion control across a wide array of industries. Our core expertise lies in crafting precision-engineered gearboxes that excel in reliability, efficiency, and durability.
Our gearbox offerings include a diverse range of designs from worm gears to planetary gears, helical gears, and spur gears, catering to various torque and speed requirements. Each gearbox is meticulously manufactured using premium materials such as alloy steels, cast iron, or specialized composites, ensuring optimal strength and resistance to wear and tear under heavy loads and challenging environments.
The design process at our factory adheres strictly to international standards and utilizes cutting-edge technology for precision machining and heat treatment processes. This guarantees exceptional dimensional accuracy, smooth operation, and low noise levels in all our gearboxes.
Furthermore, we understand the importance of customization in meeting unique industrial demands. Hence, we also provide bespoke solutions tailored to specific customer needs, ranging from customized ratios to specialized mounting arrangements and compatibility with various motor types.
In essence, by partnering with us for your gearbox requirements, you can expect not only top-notch products but also unparalleled technical support, competitive pricing, and on-time delivery. We take pride in being a one-stop destination for all your gearbox needs, providing a seamless integration into any application and delivering superior performance throughout the product lifecycle.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car |
|---|---|
| Function: | Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Three-Step |
| Samples: |
US$ 9999/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Lubrication Practices for Maintaining Servo Gearbox Performance
Proper lubrication is essential for maintaining the performance and longevity of servo gearboxes:
1. High-Quality Lubricants: Selecting the right lubricant is crucial. High-quality lubricants with the appropriate viscosity and additives are chosen based on factors like load, speed, and operating conditions.
2. Lubricant Compatibility: Ensure that the chosen lubricant is compatible with the materials used in the gearbox construction, including seals, bearings, and gears.
3. Regular Lubrication Checks: Regularly inspect the lubricant level and condition. Monitor for signs of contamination, degradation, or overheating.
4. Proper Lubricant Amount: Avoid overfilling or underfilling the gearbox. Follow manufacturer guidelines for the correct lubricant amount to ensure optimal performance.
5. Scheduled Lubrication Intervals: Establish a maintenance schedule for lubricant replacement based on operating hours, usage intensity, and environmental conditions.
6. Lubricant Contamination Prevention: Keep the gearbox environment clean and free from contaminants like dust, dirt, and moisture to prevent lubricant contamination.
7. Lubricant Temperature: Monitor and control the operating temperature of the gearbox to prevent lubricant breakdown and ensure proper viscosity.
8. Re-Greasing: In some cases, re-greasing may be necessary due to lubricant aging or displacement. Follow manufacturer recommendations for re-greasing intervals.
9. Seal Inspection: Check the seals regularly for wear and damage. Damaged seals can lead to lubricant leakage and contamination.
10. Expert Consultation: If unsure about lubricant selection or maintenance procedures, consult with experts or follow manufacturer recommendations.
Proper lubrication practices play a critical role in minimizing friction, reducing wear, and ensuring the efficient operation of servo gearboxes in motion control systems.
Contribution of Servo Gearboxes to Energy Efficiency in Automated Systems
Servo gearboxes play a crucial role in enhancing energy efficiency in various automated systems by addressing several key aspects:
1. Precise Control: Servo gearboxes enable precise and accurate control over motion, allowing automated systems to perform tasks with minimal wastage of energy. Precise positioning reduces the need for unnecessary movements and adjustments.
2. Variable Speed Operation: Servo gearboxes offer the flexibility to operate at different speeds based on the application’s requirements. This capability ensures that the system uses only the necessary amount of energy for a given task, avoiding excessive power consumption.
3. Reduced Inertia: Servo gearboxes are designed to minimize inertia, which is the resistance to changes in motion. Lower inertia results in quicker response times and less energy required to accelerate or decelerate moving parts.
4. Regenerative Braking: Some servo systems are equipped with regenerative braking mechanisms. During deceleration or braking, energy generated is fed back into the system or stored for later use, reducing energy wastage.
5. Dynamic Load Management: Servo gearboxes can adapt to varying load conditions in real-time. They adjust torque and speed based on the load, optimizing energy usage and preventing overconsumption of power.
6. Reduced Heat Generation: Efficient servo gearboxes produce less heat during operation, leading to lower energy losses. This reduction in heat generation contributes to overall energy efficiency and extends the lifespan of components.
7. Smart Control Algorithms: Modern servo systems incorporate intelligent control algorithms that optimize the use of energy. These algorithms manage power distribution, minimize idle time, and synchronize movements for optimal efficiency.
8. Energy Recovery: In certain applications, servo gearboxes can capture and reuse energy that would otherwise be dissipated as heat. This energy recovery further contributes to the overall energy efficiency of the system.
9. Low Friction Designs: Servo gearboxes often incorporate low-friction components and efficient lubrication systems to minimize energy losses due to friction.
10. Matched Components: Properly matched servo gearbox and motor combinations ensure that the system operates at its peak efficiency point, minimizing energy consumption.
By incorporating these energy-saving features and capabilities, servo gearboxes enhance the energy efficiency of automated systems, making them more environmentally friendly and cost-effective over the long term.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2024-04-23
China Standard Servo Motor Helical Gear Transmission Planetary Gearbox for Laser Cutting Machine synchromesh gearbox
Product Description
PX120 series servo motor helical gear transmission planetary gearbox for laser cutting machine
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 Parameters
Characteristics:
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.
7.Speed ratio range:3-100
8.Precision range:1-3arcmin(P1 level);3-5arcmin(P2 level)
9.Size range:60-180mm
| 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: 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
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
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Universal, Household Appliances, Automation Equipment |
|---|---|
| Operating Speed: | Low Speed |
| Excitation Mode: | Excited |
| Function: | Driving |
| Casing Protection: | Closed Type |
| Type: | Planetary Gear Reducer |
| Samples: |
US$ 280/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Handling Backlash and Ensuring Precise Positioning in Servo Gearboxes
Servo gearboxes play a critical role in minimizing backlash and ensuring precise positioning in motion control systems:
1. Reduced Backlash Gearing: Many servo gearboxes utilize reduced backlash gearing technology. This involves designing gears with tighter tolerances and improved meshing profiles, resulting in minimal play between gear teeth. This reduces or eliminates backlash, which is essential for accurate motion control.
2. Preloading: Some servo gearboxes employ preloading mechanisms to remove any gaps between gears. By applying a controlled axial load to the gears, the meshing teeth remain in constant contact, eliminating backlash and enhancing precision.
3. Stiffness and Rigidity: Servo gearboxes are designed to be stiff and rigid, which helps minimize elastic deformation under load. This stiffness prevents gear teeth from deflecting, reducing the potential for backlash and maintaining accurate positioning.
4. High Gear Meshing Quality: The manufacturing process of servo gearboxes focuses on producing high-quality gears with precise tooth profiles and minimal manufacturing variations. This ensures consistent and smooth gear meshing, minimizing the likelihood of backlash.
5. Closed-Loop Control: Combining servo gearboxes with closed-loop control systems allows for real-time feedback on position and speed. Any deviation from the desired position can be quickly corrected by adjusting the motor’s output, compensating for any inherent backlash and ensuring precise positioning.
6. Advanced Gear Coatings: Some servo gearboxes incorporate advanced gear coatings or treatments that improve the meshing characteristics and reduce friction. This contributes to smoother gear engagement and minimizes backlash effects.
7. Inertia Matching: Properly matching the inertia of the load to the servo motor and gearbox combination reduces the likelihood of overshooting or oscillations during positioning. Accurate inertia matching enhances the control system’s ability to maintain precise positioning.
Servo gearboxes’ ability to handle backlash and ensure precise positioning is crucial for applications that require high accuracy, such as robotics, CNC machines, and automated manufacturing processes. By employing advanced design techniques and technologies, servo gearboxes contribute to achieving repeatable and accurate motion control.
Precision of Gear Tooth Profiles in Servo Gearboxes
Manufacturers take several measures to ensure the precision of gear tooth profiles in servo gearboxes:
1. Advanced Manufacturing Processes: Manufacturers use advanced machining techniques such as CNC (Computer Numerical Control) machining and grinding to achieve high precision in gear tooth profiles. These processes allow for accurate shaping and finishing of the gear teeth.
2. Quality Materials: High-quality materials with consistent properties are selected for manufacturing gear components. This ensures uniformity in the gear teeth and minimizes variations that could affect precision.
3. Tight Tolerances: Manufacturers set tight tolerances for gear tooth dimensions, including pitch, profile, and helix angle. This helps to maintain precise engagement between gear teeth, reducing backlash and ensuring accurate motion control.
4. Quality Control: Rigorous quality control measures are implemented at various stages of the manufacturing process. This includes inspections, measurements, and tests to verify that gear tooth profiles meet the required specifications.
5. CNC Gear Inspection: Manufacturers use CNC gear inspection machines that can measure and analyze gear tooth profiles with high accuracy. These machines generate detailed reports about tooth geometry, ensuring compliance with design specifications.
6. Computer-Aided Design (CAD) and Simulation: Manufacturers use CAD software to design gear tooth profiles with precision. Simulation tools analyze how different factors, such as material properties and manufacturing processes, affect the final gear tooth shape.
7. Profile Corrections: In some cases, manufacturers apply profile corrections to optimize gear tooth profiles. These corrections compensate for any deviations that may occur during the manufacturing process.
8. Feedback from Application: Manufacturers often collaborate closely with end-users to gather feedback on the performance of gearboxes in real-world applications. This feedback helps refine the manufacturing process and improve the precision of gear tooth profiles.
The combination of advanced manufacturing techniques, strict quality control, and continuous improvement processes ensures that servo gearboxes maintain the precision required for accurate motion control in various applications.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2024-04-17
China manufacturer CZPT Transmission Epel-120 Planetary Reducer High Precision High Rigidity Transmission Gearbox for Servo Motor best automatic gearbox
Product Description
Precision planetary gear reducer is a new-generation of product developed by our company, with a compromise of advanced technology both at home and abroad, its main features are as follows:
1. Low noise: under 65db.
2. Low backlash: within 3 arcmin.
3. High efficiency: 97% for 1 stage, 94% for 2 stages.
4. High input speed: Rated input speed 3000rpm, max input speed 6000 rpm.
5. High output torque: higher torque output than that of conventional planetary gear reducer.
6. High stability hardening,which extends gear service life and maintain high accuracy as new after a long period of operation.
Precicion planetary gear reducer is widely used in the following fields:
1. Aerospace industries.
2. Medical health, electronic information industries.
3. Industrial robots, productin automation, CNC machine tool manufacturing industries.
4. Motor,textile,printing,food,metallurgical,envrironment protection engineering, warehouse logistics industries.
About Xingda since 1984
HangZhou Melchizedek Import & Export Co., Ltd. is a leader manufactur in mechanism field and punching/stamp
ing field since 1984. Our main product, NMRV worm gear speed reducer and series helical gearbox, XDR,
XDF, XDK, XDShave reached the advanced technique index of the congeneric European and Janpanese produc
ts, We offer standard gears, sprockets, chains, pulleys, couplings, bushes and so on. We also can accept orders
of non-standard products, such as gears, shafts, punching parts ect, according to customers’ Drawings or sam-
ples.
Our company has complete set of equipment including CNC, lathes, milling machines, gear hobbing machine, g-
ear grinding machine, gear honing machine, gear shaping machine, worm grinder, grinding machines, drilling m-
achines, boringmachines, planer, drawing benches, punches, hydraulic presses, plate shearing machines and s-
o on. We have advanced testing equipments also.
Our company has established favorable cooperation relationships with sub-suppliers involving casting, raw mat-
erial, heat treatment, surface finishing and so on.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Motor, Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Gear Shape: | Helical |
| Step: | Single-Step |
| Type: | Planetary Gear Reducer |
| Samples: |
US$ 230/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
Lubrication Practices for Maintaining Servo Gearbox Performance
Proper lubrication is essential for maintaining the performance and longevity of servo gearboxes:
1. High-Quality Lubricants: Selecting the right lubricant is crucial. High-quality lubricants with the appropriate viscosity and additives are chosen based on factors like load, speed, and operating conditions.
2. Lubricant Compatibility: Ensure that the chosen lubricant is compatible with the materials used in the gearbox construction, including seals, bearings, and gears.
3. Regular Lubrication Checks: Regularly inspect the lubricant level and condition. Monitor for signs of contamination, degradation, or overheating.
4. Proper Lubricant Amount: Avoid overfilling or underfilling the gearbox. Follow manufacturer guidelines for the correct lubricant amount to ensure optimal performance.
5. Scheduled Lubrication Intervals: Establish a maintenance schedule for lubricant replacement based on operating hours, usage intensity, and environmental conditions.
6. Lubricant Contamination Prevention: Keep the gearbox environment clean and free from contaminants like dust, dirt, and moisture to prevent lubricant contamination.
7. Lubricant Temperature: Monitor and control the operating temperature of the gearbox to prevent lubricant breakdown and ensure proper viscosity.
8. Re-Greasing: In some cases, re-greasing may be necessary due to lubricant aging or displacement. Follow manufacturer recommendations for re-greasing intervals.
9. Seal Inspection: Check the seals regularly for wear and damage. Damaged seals can lead to lubricant leakage and contamination.
10. Expert Consultation: If unsure about lubricant selection or maintenance procedures, consult with experts or follow manufacturer recommendations.
Proper lubrication practices play a critical role in minimizing friction, reducing wear, and ensuring the efficient operation of servo gearboxes in motion control systems.
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.
Industries Utilizing Servo Gearboxes
Servo gearboxes find applications in various industries where precise motion control is essential:
1. Robotics and Automation: Servo gearboxes are widely used in robotics and automation systems for accurate and dynamic movement control, enhancing the performance of industrial robots, collaborative robots (cobots), and other automated machinery.
2. Aerospace and Aviation: The aerospace industry utilizes servo gearboxes in aircraft control systems, including ailerons, elevators, and rudders, to ensure precise and responsive flight control.
3. Medical Equipment: Medical devices and equipment, such as surgical robots, diagnostic instruments, and imaging systems, rely on servo gearboxes to achieve precise and controlled movements for medical procedures and patient care.
4. Manufacturing and Assembly: Servo gearboxes are essential in manufacturing and assembly lines for tasks such as pick-and-place operations, conveyor systems, packaging machinery, and precision machining.
5. Automotive Industry: Automotive manufacturing and testing processes benefit from servo gearboxes for tasks such as vehicle assembly, quality control, and testing systems.
6. Semiconductor Manufacturing: High-precision processes in semiconductor manufacturing, including wafer handling and positioning, utilize servo gearboxes to maintain accuracy in microchip fabrication.
7. Material Handling: Servo gearboxes play a role in material handling systems, such as automated guided vehicles (AGVs), palletizers, and cranes, ensuring smooth and controlled movement of goods.
8. Entertainment and Theme Parks: Roller coasters, animatronics, and other entertainment attractions utilize servo gearboxes to create dynamic and engaging experiences for visitors.
9. Textile Industry: Servo gearboxes are used in textile machinery for processes like spinning, weaving, and knitting, enabling precise control of thread tension and fabric movement.
10. Research and Development: In research settings, servo gearboxes are employed for experimentation, testing, and prototyping of mechanical systems and prototypes.
Servo gearboxes provide the necessary precision, flexibility, and reliability required in these industries, enabling advanced motion control and enhancing the efficiency and performance of various applications.
editor by CX 2024-03-28
China factory Customize Planetary Gear Box Transmission for Servo Motor Injection Molding Take-out Robot CNC Machine Atuomatic Tools Change with Good quality
Product Description
Note:
The specifications can be designed according to the customer’s requirements!
Application:
Food Beverage, Printing, Agriculture, CNC Machine, CNC Atuomatic Tools Change
Parameter:
Gearbox Electrical Specifications
| Reducer Series | 1 |
| Transmission efficiency | >=90% |
| Max radial load | ≤200N |
| Max axial load | ≤100N |
| Transmission torque | 15N.m |
| Reduction Ratio | 10/1 |
| Length(mm) | 95 |
| Note: We can manufacture products according to customer’s requirements. | |
About Us:
We specialized in researching, developing, and servicing electric motors, gearbox, and high precision gears with the small module. After years of development, we have an independent product design and R&D team, service team, and a professional quality control team. To realize our service concept better, provide high-quality products and excellent service, we have been committed to the core ability and training. We have a holding factory in HangZhou, which produces high precision small mold gears, gear shaft, gearbox, and planetary gearbox assembling.
Work-flow:
Certificate:
RoHS, CE, and more…
Service:
ODM & OEM
Gearbox design and development
Package&Ship:
Carton, pallet, or what you want
The delivery time is about 30-45 days.
Customer’s Visiting:
FAQ:
1. Can you custom gearbox?
YES.
2. DO you provide the sample?
YES.
3. Do you provide technical support?
YES
4. Do you have a factory?
Yes, we are a professional manufacturer.
5. Can I come to your company to visit?
YES /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Transmission Efficiency: | >=90% |
|---|---|
| Max Radial Load: | 200n |
| Transmission Torque: | 15n.M |
| Ratio: | 10/1 |
| Length(mm): | 95 |
| Transport Package: | Carton or Pallet |
| Samples: |
US$ 200/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
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.
Customization of Servo Gearboxes for Specific Industrial Needs
Servo gearboxes can indeed be customized to meet specific industrial requirements. Manufacturers offer customization options to ensure that the servo gearboxes are optimized for the intended applications:
1. Gear Ratio Selection: Depending on the desired speed and torque output, manufacturers can provide various gear ratios to achieve the required motion characteristics.
2. Torque and Speed Ratings: Servo gearboxes can be tailored to handle different torque and speed demands, ensuring that they can efficiently operate within the specified parameters of the application.
3. Mounting Configurations: Manufacturers offer various mounting options, such as flange mounts or shaft mounts, to suit the mechanical layout of the machinery.
4. Output Shaft Configuration: Custom output shaft configurations, such as different diameters or keyway options, can be provided based on the integration requirements.
5. Environmental Considerations: For applications with specific environmental conditions, such as high humidity or extreme temperatures, servo gearboxes can be designed with protective features or special coatings.
6. Lubrication and Sealing: Custom lubrication options and sealing mechanisms can be incorporated to ensure optimal performance and longevity in the given environment.
7. Feedback Devices: Some applications may require specific feedback devices, such as encoders or resolvers, for precise motion control. Manufacturers can integrate these devices into the gearbox design.
8. Noise Reduction: Customized designs can include features that reduce noise and vibration, which is crucial in noise-sensitive applications.
9. Compact Designs: Manufacturers can work on compact designs to accommodate space constraints in the machinery.
10. Integration with Motors: Customized servo gearboxes can be designed to seamlessly integrate with specific types of motors, ensuring efficient power transmission.
By offering customization options, manufacturers enable industries to obtain servo gearboxes that perfectly align with their unique industrial needs, ultimately enhancing performance, precision, and overall system efficiency.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2024-03-27
China Best Sales CZPT Transmission Epet-200 Planetary Reducer High Precision High Rigidity Transmission Gearbox for Servo Motor car gearbox
Product Description
Precision planetary gear reducer is a new-generation of product developed by our company, with a compromise of advanced technology both at home and abroad, its main features are as follows:
1. Low noise: under 65db.
2. Low backlash: within 3 arcmin.
3. High efficiency: 97% for 1 stage, 94% for 2 stages.
4. High input speed: Rated input speed 3000rpm, max input speed 6000 rpm.
5. High output torque: higher torque output than that of conventional planetary gear reducer.
6. High stability hardening,which extends gear service life and maintain high accuracy as new after a long period of operation.
Precicion planetary gear reducer is widely used in the following fields:
1. Aerospace industries.
2. Medical health, electronic information industries.
3. Industrial robots, productin automation, CNC machine tool manufacturing industries.
4. Motor,textile,printing,food,metallurgical,envrironment protection engineering, warehouse logistics industries.
About Xingda since 1984
HangZhou Melchizedek Import & Export Co., Ltd. is a leader manufactur in mechanism field and punching/stamp
ing field since 1984. Our main product, NMRV worm gear speed reducer and series helical gearbox, XDR,
XDF, XDK, XDShave reached the advanced technique index of the congeneric European and Janpanese produc
ts, We offer standard gears, sprockets, chains, pulleys, couplings, bushes and so on. We also can accept orders
of non-standard products, such as gears, shafts, punching parts ect, according to customers’ Drawings or sam-
ples.
Our company has complete set of equipment including CNC, lathes, milling machines, gear hobbing machine, g-
ear grinding machine, gear honing machine, gear shaping machine, worm grinder, grinding machines, drilling m-
achines, boringmachines, planer, drawing benches, punches, hydraulic presses, plate shearing machines and s-
o on. We have advanced testing equipments also.
Our company has established favorable cooperation relationships with sub-suppliers involving casting, raw mat-
erial, heat treatment, surface finishing and so on.
| Application: | Motor, Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Gear Shape: | Helical |
| Step: | Single-Step |
| Type: | Planetary Gear Reducer |
| Samples: |
US$ 230/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
The Role of Harmonic Drive Servo Gearboxes in Advanced Motion Control Systems
Harmonic Drive servo gearboxes play a crucial role in advanced motion control systems by offering several unique features:
1. High Precision: Harmonic Drive gearboxes are known for their exceptional precision due to the unique gear mechanism they employ. This precision is essential for achieving accurate and repeatable motion control.
2. Zero Backlash: Harmonic Drive gearboxes are designed with zero backlash, which means there is no lost motion between input and output. This feature ensures that the commanded motion is precisely transferred without any delays or inaccuracies.
3. Compact Design: Harmonic Drive gearboxes have a compact structure, making them suitable for applications with limited space. The compact design allows for easy integration into various systems.
4. High Torque Transmission: Despite their compact size, harmonic drive gearboxes can transmit high torque efficiently. This feature is essential for applications that require both high precision and high torque.
5. Smooth Motion: The unique wave generator mechanism in harmonic drive gearboxes contributes to smooth and continuous motion, which is particularly beneficial in applications involving robotic arms, satellite positioning, and more.
6. Reduction Ratios: Harmonic Drive gearboxes offer high reduction ratios in a single-stage, allowing for precise control of output motion even when input motion is at high speeds.
7. Low Maintenance: The absence of backlash and the use of high-quality materials result in reduced wear and maintenance requirements, enhancing the longevity of the gearbox.
8. Advanced Applications: Harmonic Drive gearboxes are commonly used in robotics, aerospace, medical equipment, automation, and other industries where precision and reliability are paramount.
Overall, harmonic drive servo gearboxes are a critical component in achieving advanced motion control, enabling engineers to design and operate complex systems with unparalleled precision and accuracy.
Contribution of Servo Gearboxes to Energy Efficiency in Automated Systems
Servo gearboxes play a crucial role in enhancing energy efficiency in various automated systems by addressing several key aspects:
1. Precise Control: Servo gearboxes enable precise and accurate control over motion, allowing automated systems to perform tasks with minimal wastage of energy. Precise positioning reduces the need for unnecessary movements and adjustments.
2. Variable Speed Operation: Servo gearboxes offer the flexibility to operate at different speeds based on the application’s requirements. This capability ensures that the system uses only the necessary amount of energy for a given task, avoiding excessive power consumption.
3. Reduced Inertia: Servo gearboxes are designed to minimize inertia, which is the resistance to changes in motion. Lower inertia results in quicker response times and less energy required to accelerate or decelerate moving parts.
4. Regenerative Braking: Some servo systems are equipped with regenerative braking mechanisms. During deceleration or braking, energy generated is fed back into the system or stored for later use, reducing energy wastage.
5. Dynamic Load Management: Servo gearboxes can adapt to varying load conditions in real-time. They adjust torque and speed based on the load, optimizing energy usage and preventing overconsumption of power.
6. Reduced Heat Generation: Efficient servo gearboxes produce less heat during operation, leading to lower energy losses. This reduction in heat generation contributes to overall energy efficiency and extends the lifespan of components.
7. Smart Control Algorithms: Modern servo systems incorporate intelligent control algorithms that optimize the use of energy. These algorithms manage power distribution, minimize idle time, and synchronize movements for optimal efficiency.
8. Energy Recovery: In certain applications, servo gearboxes can capture and reuse energy that would otherwise be dissipated as heat. This energy recovery further contributes to the overall energy efficiency of the system.
9. Low Friction Designs: Servo gearboxes often incorporate low-friction components and efficient lubrication systems to minimize energy losses due to friction.
10. Matched Components: Properly matched servo gearbox and motor combinations ensure that the system operates at its peak efficiency point, minimizing energy consumption.
By incorporating these energy-saving features and capabilities, servo gearboxes enhance the energy efficiency of automated systems, making them more environmentally friendly and cost-effective over the long term.
Contribution to High Accuracy and Repeatability
Servo gearboxes play a crucial role in achieving high accuracy and repeatability in motion control systems:
Precise Positioning: Servo gearboxes are designed to deliver precise angular displacement, allowing machines to accurately reach specific positions and orientations. This accuracy is vital in applications like robotic arms, CNC machines, and medical devices.
Low Backlash: Servo gearboxes are engineered to minimize backlash, which is the amount of play or lost motion between gear teeth. Low backlash ensures that any change in input direction is immediately translated into an accurate output movement, reducing errors and deviations.
High Torque Transmission: Servo gearboxes are capable of transmitting high torque with minimal energy loss. This enables precise control of rotational forces, ensuring that the output movement corresponds precisely to the input command.
Dynamic Response: Servo gearboxes exhibit rapid and accurate response to input signals. This responsiveness is crucial for applications requiring quick changes in motion, such as industrial robots, where rapid and precise movement is necessary for tasks like pick-and-place operations.
Feedback Systems: Servo systems often incorporate feedback devices like encoders and resolvers. These devices provide real-time information about the actual position, speed, and direction of the output shaft. The feedback data allows the servo controller to make continuous adjustments, resulting in accurate positioning and motion control.
Closed-Loop Control: Many servo systems operate in a closed-loop control configuration. In this setup, the controller continuously compares the desired position with the actual position using feedback data and makes corrections as needed. This closed-loop approach ensures that any errors or disturbances are quickly corrected, maintaining accuracy over time.
High-Resolution Encoders: Servo gearboxes often use high-resolution encoders that provide fine position feedback, enabling precise control of movements down to fractions of a degree. This level of resolution contributes to high accuracy in positioning.
Overall, servo gearboxes contribute to achieving high accuracy and repeatability by combining precision design, low backlash, responsive control, and feedback mechanisms. These characteristics make them essential components in applications where precise and repeatable motion is required.
editor by CX 2023-11-15