Product Description
TXR Series Sleeve Type Single Nut Ball Screw (C5/Ct7/Ct10)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of TXR series(sleeve type single nut ball screw)are based on C5,Ct7 and Ct10(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5),0.02(Ct7) and 0.05mm or less(Ct10).
Material & Surface Hardness
TXR series (sleeve type single nut ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the TXR series (sleeve type single nut ball screws) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C7 |
|---|---|
| Screw Diameter: | 12mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 4-Row |
| Nut Type: | Sleeve Type Single Nut |
| Customization: |
Available
|
|
|---|
What are the limitations of using worm screws in mechanical designs?
While worm screws offer several advantages in mechanical designs, they also have some limitations that should be considered. Here are the key limitations of using worm screws:
- Lower Mechanical Efficiency: Worm screw mechanisms tend to have lower mechanical efficiency compared to other gear systems. This is primarily due to the sliding contact between the worm screw threads and the worm wheel teeth, which results in higher friction and energy losses. The lower mechanical efficiency can lead to heat generation, reduced power transmission, and decreased overall system efficiency. It’s important to consider the trade-off between the desired gear reduction and the mechanical efficiency requirements of the specific application.
- Limited High-Speed Applications: Worm screws are not well-suited for high-speed applications. The sliding contact and meshing action between the threads and teeth can generate heat and cause wear at high rotational speeds. Additionally, the higher friction and lower mechanical efficiency mentioned earlier can limit the maximum achievable speed of the system. If high-speed operation is a requirement, alternative gear systems, such as spur gears or helical gears, may be more suitable.
- Backlash: Worm screw mechanisms can exhibit a certain amount of backlash, which is the lost motion or clearance between the threads and teeth when changing direction. Backlash can negatively impact precision and positioning accuracy in applications that require tight tolerances. It’s important to consider backlash and implement measures to minimize its effects, such as using anti-backlash mechanisms or incorporating backlash compensation techniques.
- Material Selection: The choice of materials for worm screws is crucial to ensure their durability and performance. Worm screws typically require harder materials to withstand the sliding contact and high contact pressures between the threads and teeth. The selection of suitable materials may increase the manufacturing complexity and cost of the worm screw assembly. Additionally, the choice of materials should consider factors such as compatibility, wear resistance, and the specific operating conditions of the application.
- Load Distribution: In worm screw mechanisms, the load is distributed over a limited number of teeth on the worm wheel. This concentrated load distribution can result in higher stresses and wear on the contacting surfaces. It’s important to consider the load capacity and contact area of the worm wheel teeth to ensure that the assembly can handle the anticipated loads without premature failure or excessive wear.
- Required Lubrication: Proper lubrication is crucial for the smooth operation and longevity of worm screw mechanisms. Lubrication helps reduce friction, wear, and heat generation between the contacting surfaces. However, the need for lubrication adds complexity to the design and maintenance of the system. It requires regular monitoring of lubricant levels and periodic lubricant replenishment or replacement. Failure to maintain proper lubrication can result in increased friction, wear, and potential system failure.
Despite these limitations, worm screws continue to be widely used in various mechanical designs due to their unique characteristics and advantages. It’s essential to carefully evaluate the specific requirements and constraints of the application and consider alternative gear systems if the limitations of worm screws pose significant challenges to the desired performance and efficiency.
How does the pitch of a worm screw affect its performance?
The pitch of a worm screw plays a crucial role in determining its performance characteristics and capabilities. The pitch refers to the axial distance between consecutive threads on the worm screw. Here’s how the pitch of a worm screw affects its performance:
- Speed and Efficiency: The pitch of a worm screw directly influences the speed and efficiency of the worm gear system. A smaller pitch, which means a finer thread, results in a higher gear ratio and slower output speed. Conversely, a larger pitch, or coarser thread, leads to a lower gear ratio and faster output speed. This relationship between pitch and speed allows for speed reduction or multiplication in mechanical power transmission systems.
- Load Capacity: The pitch of a worm screw also affects its load-carrying capacity. A finer pitch tends to distribute the load over more threads, resulting in a larger contact area between the worm screw and the worm wheel. This increased contact area improves load distribution and allows for higher load capacity. Coarser pitches, on the other hand, may have a reduced contact area, which can limit the load-carrying capability of the worm gear system.
- Backlash: Backlash is the clearance or play between the threads of the worm screw and the teeth of the worm wheel. The pitch of a worm screw influences the amount of backlash present in the system. A finer pitch generally results in lower backlash due to the smaller clearance between the threads and the teeth. In contrast, coarser pitches may have increased backlash, which can negatively impact the system’s accuracy, precision, and responsiveness.
- Efficiency and Heat Generation: The pitch of a worm screw affects the overall efficiency of the worm gear system. Finer pitches tend to have higher efficiency due to reduced sliding friction between the threads and the teeth. This reduced friction results in less heat generation, contributing to higher overall system efficiency. Coarser pitches, on the other hand, may exhibit increased sliding friction, leading to higher energy losses and heat generation.
- Manufacturing and Design Considerations: The pitch of a worm screw also influences the manufacturing process and design considerations. Finer pitches generally require more precise machining or grinding processes to achieve the desired thread geometry. Coarser pitches, on the other hand, may offer advantages in terms of ease of manufacturing and reduced sensitivity to manufacturing tolerances. The selection of the optimal pitch depends on factors such as the desired gear ratio, load requirements, desired efficiency, and manufacturing capabilities.
It’s important to note that the pitch of a worm screw is typically specified by the manufacturer and should be chosen carefully based on the specific application requirements. Consulting with experts or engineers familiar with worm gear systems can help in selecting the appropriate pitch to achieve the desired performance and functionality.
How does a worm screw differ from a regular screw?
In mechanical engineering, a worm screw differs from a regular screw in several key aspects. While both types of screws have helical threads, their designs and functions are distinct. Here are the primary differences between a worm screw and a regular screw:
- Motion Transmission: The primary function of a regular screw is to convert rotary motion into linear motion or vice versa. It typically has a single-threaded or multi-threaded configuration and is used for applications such as fastening, clamping, or lifting. On the other hand, a worm screw is designed to transmit motion and power between non-parallel shafts. It converts rotary motion along its axis into rotary motion perpendicular to its axis by meshing with a worm wheel or gear.
- Gear Ratio: The gear ratio of a worm screw is typically much higher compared to that of a regular screw. The helical teeth of the worm screw and the worm wheel allow for a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a significant rotation of the worm wheel. In contrast, a regular screw does not have a gear ratio and is primarily used for linear motion or force multiplication.
- Orientation and Shaft Arrangement: A regular screw is typically used in applications where the input and output shafts are parallel or nearly parallel. It transfers motion and force along the same axis. In contrast, a worm screw is designed for applications where the input and output shafts are perpendicular to each other. The orientation of the worm screw and the worm wheel allows for motion transmission between non-parallel shafts.
- Self-Locking: One distinctive characteristic of a worm screw is its self-locking property. The helical teeth of the worm screw create a wedging effect that prevents the worm wheel from driving the worm screw. This self-locking feature allows worm screws to hold loads without the need for additional braking mechanisms. Regular screws, on the other hand, do not have this self-locking capability.
- Applications: Regular screws find widespread use in numerous applications, including construction, manufacturing, woodworking, and everyday objects like screws used in fastening. They are primarily employed for linear motion, clamping, or force multiplication. Worm screws, on the other hand, are commonly used in applications that require significant speed reduction, torque multiplication, or motion transmission at right angles. Typical applications include conveyor systems, winches, lifting mechanisms, and heavy machinery.
These differences in design and function make worm screws and regular screws suitable for distinct applications. Regular screws are more commonly used for linear motion and force transfer along parallel or nearly parallel shafts, while worm screws excel in transmitting motion and power between non-parallel shafts with high gear reduction ratios.
editor by CX 2024-03-26
China Good quality Dfu2005-4 Gearing Precision Ball Screw for CNC Milling Machine
Product Description
Ball Screw with Nut details
Ball screw is made of screw, nut and ball. The function is to turn the rotary motion into liner motion, which is a further extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action; With little friction, ball screws are widely used in various industrial equipment and precision instruments.
WHAT CAN WE SUPPLY?
-1.We have TBI or CHINAMFG sizes for your selection.
Our ball screws and nuts are the same sizes as TBI or CHINAMFG ,they can be interchanged with TBI or THK.
TBI sizes have enough inventory in stock.
CHINAMFG sizes are produced on request.
-2.We are able to machine the 2 end sides of ball screws according to your requirements.
-3.We have full range of products what can be matched with ball screws.
We are able to match for you completely, including Machined Ball screw, Ball screw Nut, Nut housing/Nut Bracket, Shaft Coupler, End support unit.
-4.We provide many different series of ball screws and screw nuts, like SFU,SFS,SFI,SFY, SFK ,DFU,DFI series and so on.
Each series has its own characteristics. The following table list the differences in appearance and characteristics for your reference.
Rolled Ball Screw Application:
1. Engraving machines; 2. High speed CNC machinery;
4. Auto-machinery. 3. Semi-Conductor equipment;
5. Machine tools; 6. Industrial Machinery;
7. Printing machine; 8. Paper-processing machine;
9. Textiles machine; 10. Electronic machinery;
11. Transport machinery; 12. Robot etc.
Rolled ball screws can not only be used in above general machinery, but also in many advanced industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is more eco-friendly than hydraulic pump system. Nowadays it’s applied to electric vehicles, solar power plants, railway devices and many medical and leisure equipments.
Kindly pls contact me if you have any question!!!!!!!!!!!!!!!!!!!!!! /* 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
| Precision: | C7 |
|---|---|
| Screw Diameter: | 31-40mm |
| Flange: | Without Flange |
| Customization: |
Available
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What are the common issues or failures associated with worm screws?
Worm screws, like any mechanical component, can experience certain issues or failures over time. Understanding these common problems is important for proper maintenance and troubleshooting. Here are some common issues or failures associated with worm screws:
- Wear and Surface Damage: Due to the sliding contact between the threads of the worm screw and the teeth of the worm wheel, wear can occur over time. This wear can lead to surface damage, such as pitting, scoring, or galling. Excessive wear and surface damage can affect the performance and efficiency of the worm screw gear system, resulting in increased backlash, decreased torque transmission, and potential failure.
- Lubrication Problems: Inadequate or improper lubrication is a common cause of issues in worm screw systems. Insufficient lubrication can lead to increased friction, heat generation, and accelerated wear. On the other hand, over-lubrication can cause excessive drag and fluid churn, leading to inefficient power transmission. It is important to follow the manufacturer’s recommendations for lubrication intervals, types of lubricants, and proper lubrication techniques to ensure optimal performance and longevity of the worm screw system.
- Backlash and Inaccuracy: Backlash refers to the play or clearance between the threads of the worm screw and the teeth of the worm wheel. Excessive backlash can result in reduced accuracy, loss of motion control, and diminished overall system performance. Backlash can be caused by factors such as wear, misalignment, or improper assembly. Regular inspection and adjustment of backlash are necessary to maintain the desired precision and minimize the effects of backlash-related issues.
- Misalignment: Misalignment between the worm screw and the worm wheel can result in increased friction, wear, and inefficiencies. Misalignment can occur due to factors such as improper installation, component deformation, or external forces. It is essential to ensure proper alignment during installation and periodically check for misalignment during routine maintenance. Adjustments should be made as necessary to maintain optimal performance and prevent premature failure.
- Overloading: Subjecting the worm screw gear system to excessive loads beyond its design limits can lead to failure. Overloading can result in accelerated wear, tooth breakage, or component deformation. It is important to operate the system within the specified load limits and consider factors such as shock loads, dynamic loads, and variations in operating conditions. If higher loads are required, it may be necessary to select a worm screw system with a higher load capacity or redesign the system accordingly.
- Corrosion and Contamination: Corrosion and contamination can negatively impact the performance and lifespan of worm screw systems. Exposure to moisture, chemicals, or abrasive particles can lead to corrosion, rusting, or damage to the surfaces of the worm screw and worm wheel. Contamination can interfere with smooth operation and cause accelerated wear. Proper environmental protection, regular cleaning, and appropriate sealing measures can help mitigate the effects of corrosion and contamination.
- Insufficient Stiffness: Worm screws rely on proper support and stiffness to maintain accurate positioning and prevent deflection. Inadequate stiffness in the supporting structure or mounting arrangement can result in excessive deflection, misalignment, and decreased performance. It is crucial to ensure that the worm screw system is properly supported and mounted to maintain the required rigidity and stiffness for optimal operation.
It’s important to note that the specific issues or failures associated with worm screws can vary depending on factors such as the application, operating conditions, maintenance practices, and the quality of the components. Regular inspection, proper lubrication, alignment checks, load monitoring, and adherence to manufacturer guidelines are essential for minimizing the occurrence of these issues and ensuring the reliable and efficient operation of worm screw systems.
How do you troubleshoot problems in a worm screw gear system?
Troubleshooting problems in a worm screw gear system requires a systematic approach to identify and resolve issues effectively. Here are the steps involved in troubleshooting problems in a worm screw gear system:
- Identify the Symptoms: Start by identifying the specific symptoms or issues that indicate a problem in the worm screw gear system. This can include abnormal noise, reduced performance, increased backlash, erratic motion, or any other noticeable deviations from normal operation. Gather as much information as possible about the symptoms to help narrow down the potential causes.
- Inspect and Clean: Conduct a visual inspection of the worm screw gear system to check for any obvious signs of wear, damage, misalignment, or contamination. Inspect the threads of the worm screw and the teeth of the worm wheel for signs of pitting, scoring, or other surface irregularities. Clean the components if necessary to remove any debris or contaminants that may be affecting the system’s performance.
- Check Lubrication: Review the lubrication of the worm screw gear system. Ensure that the system is adequately lubricated with the recommended lubricant and that the lubricant is in good condition. Insufficient or degraded lubrication can result in increased friction, wear, and inefficiencies. Replenish or replace the lubricant as needed following the manufacturer’s guidelines.
- Inspect Alignment: Verify the alignment of the worm screw and the worm wheel. Misalignment can cause issues such as increased friction, wear, and reduced efficiency. Check for any signs of misalignment and make adjustments as necessary to ensure proper alignment of the components. This may involve repositioning or realigning the system or addressing any underlying factors contributing to the misalignment.
- Measure Backlash: Measure the amount of backlash present in the system. Excessive backlash can lead to reduced accuracy, loss of motion control, and diminished performance. Use appropriate measuring tools, such as dial indicators, to quantify the amount of backlash. If the backlash exceeds acceptable limits, consider adjusting the system to minimize or eliminate the excessive clearance between the threads and the teeth.
- Check Load and Overloading: Evaluate the loads applied to the worm screw gear system and compare them to the system’s design limits. Overloading the system can lead to accelerated wear, tooth breakage, or component deformation. If the loads exceed the system’s capacity, consider redistributing the load, upgrading the components, or redesigning the system to handle the required loads appropriately.
- Address Specific Issues: Based on the symptoms and findings from the inspection and measurements, address any specific issues identified in the worm screw gear system. This may involve repairing or replacing worn or damaged components, adjusting clearances, realigning the system, improving lubrication, or addressing any other factors contributing to the problems observed.
- Test and Monitor: After addressing the identified issues, test the worm screw gear system to verify that the problems have been resolved. Monitor the system’s performance during operation to ensure that the symptoms have been effectively mitigated. Pay attention to any new or recurring issues that may require further investigation or adjustments.
It is important to note that troubleshooting problems in a worm screw gear system may require expertise and experience. If you encounter complex or persistent issues that you are unable to resolve, it is recommended to seek assistance from qualified technicians or professionals with knowledge in mechanical power transmission systems.
What are the advantages of using a worm screw in gear systems?
Using a worm screw in gear systems offers several advantages that make it a preferred choice in certain applications. Here are some of the advantages of using a worm screw:
- High Gear Reduction: One of the primary advantages of a worm screw is its ability to provide a high gear reduction ratio in a single stage. The helical threads of the worm screw and the meshing teeth of the worm wheel create a significant reduction in rotational speed. This allows for efficient torque multiplication, enabling the transmission of high torque output from the worm screw to the worm wheel. The high gear reduction is beneficial in applications that require slow and powerful movements, such as lifting heavy loads or controlling conveyor systems.
- Compact Design: Worm screw mechanisms are known for their compact design. Compared to other gear systems, such as spur gears or helical gears, a worm screw setup can achieve a similar gear reduction with fewer components. This makes it a space-saving solution, especially in applications where limited space is available or where a compact design is desired.
- Self-Locking: The self-locking property of a worm screw is a significant advantage in many applications. Due to the helical shape of the threads, the worm screw has a natural tendency to hold its position and prevent backward rotation of the worm wheel. This self-locking feature eliminates the need for additional braking mechanisms or external locking devices, simplifying the overall system design and improving safety and stability in applications that require load holding or position locking.
- Right-Angle Transmission: Worm screw mechanisms provide motion transmission at a right angle, allowing for the transfer of motion between non-parallel shafts. This makes them suitable for applications where the input and output shafts are oriented perpendicular to each other. Examples include automotive steering systems, where the rotational motion from the steering wheel needs to be converted into lateral motion for steering the vehicle.
- Quiet Operation: Worm screw gear systems tend to operate quietly compared to other gear configurations. The helical threads of the worm screw and the meshing teeth of the worm wheel engage gradually, resulting in smoother and quieter operation. This can be advantageous in applications where noise reduction is desirable, such as in office equipment, appliances, or environments where low noise levels are required.
It’s important to note that while worm screw mechanisms offer these advantages, there are also some considerations to keep in mind. For instance, worm screws can have lower mechanical efficiency compared to other gear systems due to inherent friction between the threads and teeth, leading to energy losses. Additionally, they may exhibit a certain amount of backlash, which can affect precision and introduce a small amount of lost motion in the system. Nevertheless, the unique characteristics of worm screws make them a valuable choice in various applications where high gear reduction, self-locking, compactness, and right-angle transmission are essential.
editor by CX 2024-03-26
China best CHINAMFG CNC Ball Screw for Engine Machine (BBS Series, Lead: 1mm, Shaft: 8mm)
Product Description
BBS Series Stainless Steel Cold Rolled Ball Screw (C5/Ct7/Ct10)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of BBS series(standard cold rolled stainless steel ball screw are based on C5,Ct7 and Ct10(JIS B 1192-3).According to accuracy grade, Axial play 0.005(Preload :C5),0.02mm(Ct7) and 0.05mm or less(Ct10).
Material & Surface Hardness
BBS series (standard cold rolled stainless steel ball screws), the screw shaft screw material is SUS440C (induction hardening), the nut material is SUS440 (vacuum hardening), and the surface hardness of the ball screw part is HRC55 or higher.
Shaft End Shape
The shape of the shaft end of the BBS series (standard stainless steel cold-rolled ball screws) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C7 |
|---|---|
| Screw Diameter: | 8mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 4-Row |
| Nut Type: | Circulator |
| Customization: |
Available
|
|
|---|
What are the common issues or failures associated with worm screws?
Worm screws, like any mechanical component, can experience certain issues or failures over time. Understanding these common problems is important for proper maintenance and troubleshooting. Here are some common issues or failures associated with worm screws:
- Wear and Surface Damage: Due to the sliding contact between the threads of the worm screw and the teeth of the worm wheel, wear can occur over time. This wear can lead to surface damage, such as pitting, scoring, or galling. Excessive wear and surface damage can affect the performance and efficiency of the worm screw gear system, resulting in increased backlash, decreased torque transmission, and potential failure.
- Lubrication Problems: Inadequate or improper lubrication is a common cause of issues in worm screw systems. Insufficient lubrication can lead to increased friction, heat generation, and accelerated wear. On the other hand, over-lubrication can cause excessive drag and fluid churn, leading to inefficient power transmission. It is important to follow the manufacturer’s recommendations for lubrication intervals, types of lubricants, and proper lubrication techniques to ensure optimal performance and longevity of the worm screw system.
- Backlash and Inaccuracy: Backlash refers to the play or clearance between the threads of the worm screw and the teeth of the worm wheel. Excessive backlash can result in reduced accuracy, loss of motion control, and diminished overall system performance. Backlash can be caused by factors such as wear, misalignment, or improper assembly. Regular inspection and adjustment of backlash are necessary to maintain the desired precision and minimize the effects of backlash-related issues.
- Misalignment: Misalignment between the worm screw and the worm wheel can result in increased friction, wear, and inefficiencies. Misalignment can occur due to factors such as improper installation, component deformation, or external forces. It is essential to ensure proper alignment during installation and periodically check for misalignment during routine maintenance. Adjustments should be made as necessary to maintain optimal performance and prevent premature failure.
- Overloading: Subjecting the worm screw gear system to excessive loads beyond its design limits can lead to failure. Overloading can result in accelerated wear, tooth breakage, or component deformation. It is important to operate the system within the specified load limits and consider factors such as shock loads, dynamic loads, and variations in operating conditions. If higher loads are required, it may be necessary to select a worm screw system with a higher load capacity or redesign the system accordingly.
- Corrosion and Contamination: Corrosion and contamination can negatively impact the performance and lifespan of worm screw systems. Exposure to moisture, chemicals, or abrasive particles can lead to corrosion, rusting, or damage to the surfaces of the worm screw and worm wheel. Contamination can interfere with smooth operation and cause accelerated wear. Proper environmental protection, regular cleaning, and appropriate sealing measures can help mitigate the effects of corrosion and contamination.
- Insufficient Stiffness: Worm screws rely on proper support and stiffness to maintain accurate positioning and prevent deflection. Inadequate stiffness in the supporting structure or mounting arrangement can result in excessive deflection, misalignment, and decreased performance. It is crucial to ensure that the worm screw system is properly supported and mounted to maintain the required rigidity and stiffness for optimal operation.
It’s important to note that the specific issues or failures associated with worm screws can vary depending on factors such as the application, operating conditions, maintenance practices, and the quality of the components. Regular inspection, proper lubrication, alignment checks, load monitoring, and adherence to manufacturer guidelines are essential for minimizing the occurrence of these issues and ensuring the reliable and efficient operation of worm screw systems.
How does the pitch of a worm screw affect its performance?
The pitch of a worm screw plays a crucial role in determining its performance characteristics and capabilities. The pitch refers to the axial distance between consecutive threads on the worm screw. Here’s how the pitch of a worm screw affects its performance:
- Speed and Efficiency: The pitch of a worm screw directly influences the speed and efficiency of the worm gear system. A smaller pitch, which means a finer thread, results in a higher gear ratio and slower output speed. Conversely, a larger pitch, or coarser thread, leads to a lower gear ratio and faster output speed. This relationship between pitch and speed allows for speed reduction or multiplication in mechanical power transmission systems.
- Load Capacity: The pitch of a worm screw also affects its load-carrying capacity. A finer pitch tends to distribute the load over more threads, resulting in a larger contact area between the worm screw and the worm wheel. This increased contact area improves load distribution and allows for higher load capacity. Coarser pitches, on the other hand, may have a reduced contact area, which can limit the load-carrying capability of the worm gear system.
- Backlash: Backlash is the clearance or play between the threads of the worm screw and the teeth of the worm wheel. The pitch of a worm screw influences the amount of backlash present in the system. A finer pitch generally results in lower backlash due to the smaller clearance between the threads and the teeth. In contrast, coarser pitches may have increased backlash, which can negatively impact the system’s accuracy, precision, and responsiveness.
- Efficiency and Heat Generation: The pitch of a worm screw affects the overall efficiency of the worm gear system. Finer pitches tend to have higher efficiency due to reduced sliding friction between the threads and the teeth. This reduced friction results in less heat generation, contributing to higher overall system efficiency. Coarser pitches, on the other hand, may exhibit increased sliding friction, leading to higher energy losses and heat generation.
- Manufacturing and Design Considerations: The pitch of a worm screw also influences the manufacturing process and design considerations. Finer pitches generally require more precise machining or grinding processes to achieve the desired thread geometry. Coarser pitches, on the other hand, may offer advantages in terms of ease of manufacturing and reduced sensitivity to manufacturing tolerances. The selection of the optimal pitch depends on factors such as the desired gear ratio, load requirements, desired efficiency, and manufacturing capabilities.
It’s important to note that the pitch of a worm screw is typically specified by the manufacturer and should be chosen carefully based on the specific application requirements. Consulting with experts or engineers familiar with worm gear systems can help in selecting the appropriate pitch to achieve the desired performance and functionality.
What is a worm screw in mechanical engineering?
In mechanical engineering, a worm screw, also known as a worm gear screw or worm gear, is a type of gear mechanism used to transmit motion and power between non-parallel shafts. It consists of a spiral-shaped screw, called the worm, and a gear wheel, called the worm wheel or worm gear. The worm screw and worm wheel have helical teeth that mesh together to transfer rotational motion.
The worm screw typically has a single thread or multiple threads wrapped around its cylindrical body. The worm wheel, on the other hand, has teeth that are specially shaped to mesh with the worm screw. The orientation of the worm screw and worm wheel is such that the axes of rotation are perpendicular to each other. This configuration allows the worm screw to convert rotational motion along its axis into rotary motion perpendicular to its axis.
One of the defining characteristics of a worm screw is its high gear ratio. Due to the helical nature of the teeth, a worm screw can achieve a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a substantial rotation of the worm wheel. The ratio of the number of teeth on the worm wheel to the number of threads on the worm screw determines the reduction ratio.
Worm screws have several advantages and applications in mechanical engineering:
- High Reduction Ratio: As mentioned earlier, worm screws offer high gear ratios, making them suitable for applications that require significant speed reduction and torque multiplication. They are commonly used in applications where large gear reductions are needed, such as in conveyor systems, winches, and lifting equipment.
- Self-Locking: A unique characteristic of worm screws is their self-locking property. The angle of the helical teeth creates a wedging effect that prevents the worm wheel from driving the worm screw. This self-locking feature allows worm screws to hold loads without the need for additional braking mechanisms, making them suitable for applications where holding positions or preventing back-driving is crucial, such as in elevators or lifting mechanisms.
- Smooth and Quiet Operation: The helical teeth of the worm screw and worm wheel facilitate smooth and quiet operation. The gradual engagement and disengagement of the teeth minimize noise, vibration, and backlash, resulting in a more efficient and reliable gear mechanism.
- Compact Design: Worm screws offer a compact design compared to other gear mechanisms. The perpendicular arrangement of the worm screw and worm wheel allows for a compact and space-saving installation, making them suitable for applications where size constraints are a consideration.
- Reduction of Input Speed: Worm screws are commonly used to reduce the speed of the input shaft while increasing torque. This is advantageous in applications where slower, controlled motion is required, such as in industrial machinery, conveyors, and robotics.
It should be noted that worm screws also have some limitations, including lower efficiency compared to other gear mechanisms, higher friction due to sliding motion, and limited reverse operation capabilities. Therefore, careful consideration of the specific application requirements is necessary when deciding whether to use a worm screw in a mechanical system.
editor by CX 2024-03-25
China OEM CHINAMFG Rolled Machinery Ball Screw for Automatic Equipment Parts (BSD Series, Lead: 2mm, Shaft: 4mm)
Product Description
BSD Series Stepped Cold Rolled Ball Screw (C5/Ct7)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of BSD series(standard stepped cold rolled ball screw) are based on C5 and Ct7(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5) and 0.02mm or less(Ct7).
Material & Surface Hardness
BSD series (Standard Stepped cold rolled ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the BSD series (stepped cold rolled ball screw) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C5/C7 |
|---|---|
| Screw Diameter: | 4mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 3-Row |
| Nut Type: | Stepped Type |
| Customization: |
Available
|
|
|---|
Can worm screws be used for high torque applications?
Yes, worm screws can be used for high torque applications. The design of a worm screw mechanism allows for efficient torque transmission and multiplication, making it suitable for applications that require high torque output. Here are some key points to consider regarding the use of worm screws in high torque applications:
- Gear Reduction: One of the primary advantages of a worm screw mechanism is its ability to provide a significant gear reduction in a single stage. The helical threads of the worm screw and the meshing teeth of the worm wheel create a high reduction ratio, which results in a lower output speed and higher output torque. This gear reduction capability allows worm screws to generate and transmit substantial torque, making them well-suited for high torque applications.
- Efficiency: While worm screws can provide high torque output, it’s important to consider the mechanical efficiency of the system. The efficiency of a worm screw mechanism can vary depending on factors such as the materials used, lubrication, and design parameters. However, compared to other gear systems, worm screw mechanisms tend to have lower efficiency due to inherent friction between the threads and teeth. It’s crucial to ensure that the efficiency of the worm screw mechanism meets the requirements of the specific high torque application.
- Load Holding: Another advantage of worm screws is their self-locking property. Due to the helical shape of the threads, the worm screw has a wedging effect on the worm wheel, which provides resistance against backward rotation. This self-locking feature allows worm screws to hold loads in a fixed position without the need for additional braking mechanisms. In high torque applications where load holding is required, worm screws can provide reliable and secure positioning.
- Material Selection: The materials used for the worm screw and worm wheel should be carefully selected to withstand high torque loads. Both components should have sufficient strength and wear resistance to handle the transmitted torque without deformation or premature failure. Depending on the specific application requirements, materials such as hardened steel, bronze, or other alloys may be chosen to ensure the durability and performance of the worm screw assembly.
- Lubrication and Maintenance: Proper lubrication is crucial for the smooth operation and longevity of a worm screw mechanism, especially in high torque applications. Adequate lubrication helps reduce friction, wear, and heat generation between the contacting surfaces, ensuring efficient torque transfer. Regular maintenance, including monitoring lubricant levels and replenishing or replacing the lubricant as needed, is essential to maintain optimal performance and prevent premature wear or failure.
Overall, worm screws can be effectively used in high torque applications, thanks to their gear reduction capabilities, load-holding properties, and efficient torque transmission. However, it’s important to carefully consider factors such as mechanical efficiency, material selection, lubrication, and maintenance to ensure that the worm screw mechanism can meet the specific requirements and demands of the high torque application.
Can worm screws be customized for specific engineering needs?
Yes, worm screws can be customized to meet specific engineering needs and application requirements. Customization allows for tailoring the design, dimensions, materials, and other parameters of the worm screw to optimize its performance and functionality. Here are some aspects of worm screws that can be customized:
- Thread Geometry: The thread geometry of a worm screw can be customized to suit specific requirements. This includes the shape, profile, lead angle, and thread form. Custom thread geometries can be designed to optimize load distribution, minimize friction, reduce backlash, improve efficiency, or achieve specific performance characteristics.
- Pitch and Lead: The pitch and lead of a worm screw can be tailored to meet the desired gear ratio, output speed, load capacity, and other performance criteria. Customizing the pitch and lead allows for precise control over the speed reduction or multiplication capabilities of the worm gear system.
- Materials: Worm screws can be customized to be made from different materials based on the specific application requirements. Common materials include steel, stainless steel, bronze, and various alloys. The choice of material depends on factors such as load capacity, durability, corrosion resistance, temperature tolerance, and other environmental considerations.
- Diameter and Length: The diameter and length of a worm screw can be customized to suit the mechanical constraints and dimensional requirements of the application. Custom sizing ensures proper fit, alignment, and integration within the overall system design.
- Coatings and Surface Treatments: Custom coatings or surface treatments can be applied to worm screws to enhance their performance and durability. These can include treatments such as hardening, heat treatment, plating, or specialized coatings to improve wear resistance, reduce friction, or provide corrosion protection.
- Special Features: Worm screws can be customized to incorporate special features or modifications based on specific engineering needs. This may include the addition of keyways, flanges, shaft extensions, or other components to facilitate integration with other system elements or to accommodate unique mechanical requirements.
Customization of worm screws requires collaboration between engineers, designers, and manufacturers with expertise in worm gear systems. It is important to define the specific engineering needs, performance requirements, and operational conditions to ensure that the customized worm screw meets the desired objectives effectively.
What is a worm screw in mechanical engineering?
In mechanical engineering, a worm screw, also known as a worm gear screw or worm gear, is a type of gear mechanism used to transmit motion and power between non-parallel shafts. It consists of a spiral-shaped screw, called the worm, and a gear wheel, called the worm wheel or worm gear. The worm screw and worm wheel have helical teeth that mesh together to transfer rotational motion.
The worm screw typically has a single thread or multiple threads wrapped around its cylindrical body. The worm wheel, on the other hand, has teeth that are specially shaped to mesh with the worm screw. The orientation of the worm screw and worm wheel is such that the axes of rotation are perpendicular to each other. This configuration allows the worm screw to convert rotational motion along its axis into rotary motion perpendicular to its axis.
One of the defining characteristics of a worm screw is its high gear ratio. Due to the helical nature of the teeth, a worm screw can achieve a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a substantial rotation of the worm wheel. The ratio of the number of teeth on the worm wheel to the number of threads on the worm screw determines the reduction ratio.
Worm screws have several advantages and applications in mechanical engineering:
- High Reduction Ratio: As mentioned earlier, worm screws offer high gear ratios, making them suitable for applications that require significant speed reduction and torque multiplication. They are commonly used in applications where large gear reductions are needed, such as in conveyor systems, winches, and lifting equipment.
- Self-Locking: A unique characteristic of worm screws is their self-locking property. The angle of the helical teeth creates a wedging effect that prevents the worm wheel from driving the worm screw. This self-locking feature allows worm screws to hold loads without the need for additional braking mechanisms, making them suitable for applications where holding positions or preventing back-driving is crucial, such as in elevators or lifting mechanisms.
- Smooth and Quiet Operation: The helical teeth of the worm screw and worm wheel facilitate smooth and quiet operation. The gradual engagement and disengagement of the teeth minimize noise, vibration, and backlash, resulting in a more efficient and reliable gear mechanism.
- Compact Design: Worm screws offer a compact design compared to other gear mechanisms. The perpendicular arrangement of the worm screw and worm wheel allows for a compact and space-saving installation, making them suitable for applications where size constraints are a consideration.
- Reduction of Input Speed: Worm screws are commonly used to reduce the speed of the input shaft while increasing torque. This is advantageous in applications where slower, controlled motion is required, such as in industrial machinery, conveyors, and robotics.
It should be noted that worm screws also have some limitations, including lower efficiency compared to other gear mechanisms, higher friction due to sliding motion, and limited reverse operation capabilities. Therefore, careful consideration of the specific application requirements is necessary when deciding whether to use a worm screw in a mechanical system.
editor by CX 2024-03-25
China wholesaler CHINAMFG Cold Rolling Ball Screws with Sleeve Type Nuts for Medical Equipment (TXR Series, Lead: 4mm, Shaft: 5mm)
Product Description
TXR Series Sleeve Type Single Nut Ball Screw (C5/Ct7/Ct10)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of TXR series(sleeve type single nut ball screw)are based on C5,Ct7 and Ct10(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5),0.02(Ct7) and 0.05mm or less(Ct10).
Material & Surface Hardness
TXR series (sleeve type single nut ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the TXR series (sleeve type single nut ball screws) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C7 |
|---|---|
| Screw Diameter: | 5mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 3-Row |
| Nut Type: | Sleeve Type Single Nut |
| Customization: |
Available
|
|
|---|
How do you properly lubricate a worm screw and gear assembly?
Proper lubrication is essential for the smooth and efficient operation of a worm screw and gear assembly. Lubrication helps reduce friction, wear, and heat generation between the contacting surfaces, thereby extending the lifespan of the components. Here are the steps to properly lubricate a worm screw and gear assembly:
- Clean the Assembly: Before applying lubrication, ensure that the worm screw and gear assembly is free from dirt, debris, and old lubricant residues. Clean the surfaces using an appropriate cleaning agent or solvent, followed by a thorough drying process.
- Select the Right Lubricant: Choose a lubricant specifically designed for gear systems or worm screw applications. Consider factors such as viscosity, temperature range, load capacity, and compatibility with the materials used in the assembly. Consult the manufacturer’s recommendations or lubrication guidelines for the specific assembly to determine the suitable lubricant type and grade.
- Apply the Lubricant: Apply the lubricant to the contacting surfaces of the worm screw and gear assembly. Use an appropriate applicator, such as a brush, oil can, or grease gun, depending on the lubricant form (oil or grease) and the accessibility of the components. Ensure complete coverage of the gear teeth, worm screw threads, and other relevant surfaces. Pay attention to areas where the most significant friction and wear occur.
- Monitor the Lubricant Level: Check the lubricant level regularly to ensure an adequate supply. Depending on the application and operating conditions, lubricant consumption or degradation may occur over time. It is important to maintain the lubricant level within the recommended range to ensure proper lubrication and prevent excessive wear or overheating.
- Periodic Lubrication Maintenance: Establish a lubrication maintenance schedule based on the operating conditions and manufacturer’s recommendations. Regularly inspect the assembly for signs of lubricant degradation, contamination, or insufficient lubrication. Replace the lubricant as needed and follow the recommended intervals for lubricant replenishment or reapplication.
- Consideration for Grease Lubrication: If using grease as the lubricant, it is important to choose a high-quality grease suitable for worm screw applications. Grease provides better adhesion to surfaces and tends to stay in place, offering longer-lasting lubrication compared to oil. However, excessive grease accumulation or over-greasing should be avoided, as it can lead to increased friction and inefficiency.
It is crucial to follow the manufacturer’s guidelines and recommendations for lubrication specific to the worm screw and gear assembly. Different assemblies may have unique lubrication requirements based on their design, load capacity, operating conditions, and materials used. By properly lubricating the worm screw and gear assembly, you can ensure optimal performance, reduce wear, and extend the operational life of the components.
Are there different types of worm screws available?
Yes, there are different types of worm screws available to suit various applications and requirements. The design and characteristics of a worm screw can vary based on factors such as the material used, the thread geometry, the type of worm wheel, and the intended application. Here are some common types of worm screws:
- Standard Worm Screws: Standard worm screws are the most commonly used type and are available in a wide range of sizes and materials. They typically have a single-start thread and are made from materials such as steel, stainless steel, or bronze. Standard worm screws are suitable for general-purpose applications where moderate precision and load capacity are required.
- Double-Enveloping Worm Screws: Double-enveloping worm screws, also known as hourglass worm screws, have a unique thread profile that improves contact and load distribution between the worm screw and the worm wheel. This design offers enhanced torque transmission, higher efficiency, and increased load-carrying capacity compared to standard worm screws. Double-enveloping worm screws are often used in heavy-duty applications, such as gearboxes and high-load power transmission systems.
- Low-Lead Worm Screws: Low-lead worm screws have a smaller thread lead angle compared to standard worm screws. This design reduces the amount of sliding contact between the threads of the worm screw and the teeth of the worm wheel, resulting in lower friction and improved efficiency. Low-lead worm screws are commonly used in applications where high efficiency and reduced heat generation are critical, such as in precision machinery and high-speed gear systems.
- Self-Locking Worm Screws: Self-locking worm screws are designed to have a high friction angle between the threads, making them capable of preventing reverse motion or backdriving. This self-locking feature eliminates the need for additional braking mechanisms or external locking devices in certain applications. Self-locking worm screws are commonly used in vertical lift systems, hoists, and other applications where holding the load position is essential.
- High-Precision Worm Screws: High-precision worm screws are manufactured to tighter tolerances and have improved accuracy compared to standard worm screws. They are designed to provide precise positioning and motion control in applications where high accuracy and repeatability are required. High-precision worm screws are often used in CNC machines, robotics, and other precision equipment.
- Customized Worm Screws: In addition to the standard types mentioned above, worm screws can also be customized to meet specific application requirements. Customized worm screws may involve variations in thread geometry, pitch, diameter, materials, or other parameters to suit unique applications or performance specifications.
The selection of the appropriate type of worm screw depends on factors such as the desired load capacity, efficiency requirements, backlash tolerance, positional accuracy, and environmental conditions. It is important to consult with manufacturers, engineers, or experts familiar with worm screw applications to determine the most suitable type for a specific application.
How does a worm screw differ from a regular screw?
In mechanical engineering, a worm screw differs from a regular screw in several key aspects. While both types of screws have helical threads, their designs and functions are distinct. Here are the primary differences between a worm screw and a regular screw:
- Motion Transmission: The primary function of a regular screw is to convert rotary motion into linear motion or vice versa. It typically has a single-threaded or multi-threaded configuration and is used for applications such as fastening, clamping, or lifting. On the other hand, a worm screw is designed to transmit motion and power between non-parallel shafts. It converts rotary motion along its axis into rotary motion perpendicular to its axis by meshing with a worm wheel or gear.
- Gear Ratio: The gear ratio of a worm screw is typically much higher compared to that of a regular screw. The helical teeth of the worm screw and the worm wheel allow for a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a significant rotation of the worm wheel. In contrast, a regular screw does not have a gear ratio and is primarily used for linear motion or force multiplication.
- Orientation and Shaft Arrangement: A regular screw is typically used in applications where the input and output shafts are parallel or nearly parallel. It transfers motion and force along the same axis. In contrast, a worm screw is designed for applications where the input and output shafts are perpendicular to each other. The orientation of the worm screw and the worm wheel allows for motion transmission between non-parallel shafts.
- Self-Locking: One distinctive characteristic of a worm screw is its self-locking property. The helical teeth of the worm screw create a wedging effect that prevents the worm wheel from driving the worm screw. This self-locking feature allows worm screws to hold loads without the need for additional braking mechanisms. Regular screws, on the other hand, do not have this self-locking capability.
- Applications: Regular screws find widespread use in numerous applications, including construction, manufacturing, woodworking, and everyday objects like screws used in fastening. They are primarily employed for linear motion, clamping, or force multiplication. Worm screws, on the other hand, are commonly used in applications that require significant speed reduction, torque multiplication, or motion transmission at right angles. Typical applications include conveyor systems, winches, lifting mechanisms, and heavy machinery.
These differences in design and function make worm screws and regular screws suitable for distinct applications. Regular screws are more commonly used for linear motion and force transfer along parallel or nearly parallel shafts, while worm screws excel in transmitting motion and power between non-parallel shafts with high gear reduction ratios.
editor by CX 2024-03-24
China supplier CHINAMFG Rolled Ball Screw with 6mm Shaft Diameter for Medical Industry (GLR Series, Lead: 1mm, Shaft: 6mm)
Product Description
GLR Series Single Nut Ball Screw with Metric Thread (C5/Ct7/Ct10)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of GLR series(single nut ball screw with metric thread)are based on C5,Ct7 and Ct10(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5),0.02(Ct7) and 0.05mm or less(Ct10).
Material & Surface Hardness
GLR series (single nut ball screw with metric thread)of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shaft end shape of the GLR series (single nut ball screw with metric thread) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C10 |
|---|---|
| Screw Diameter: | 6mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 3-Row |
| Nut Type: | Single Nut Ball Screw with Metric Thread |
| Customization: |
Available
|
|
|---|
Can worm screws be used for high torque applications?
Yes, worm screws can be used for high torque applications. The design of a worm screw mechanism allows for efficient torque transmission and multiplication, making it suitable for applications that require high torque output. Here are some key points to consider regarding the use of worm screws in high torque applications:
- Gear Reduction: One of the primary advantages of a worm screw mechanism is its ability to provide a significant gear reduction in a single stage. The helical threads of the worm screw and the meshing teeth of the worm wheel create a high reduction ratio, which results in a lower output speed and higher output torque. This gear reduction capability allows worm screws to generate and transmit substantial torque, making them well-suited for high torque applications.
- Efficiency: While worm screws can provide high torque output, it’s important to consider the mechanical efficiency of the system. The efficiency of a worm screw mechanism can vary depending on factors such as the materials used, lubrication, and design parameters. However, compared to other gear systems, worm screw mechanisms tend to have lower efficiency due to inherent friction between the threads and teeth. It’s crucial to ensure that the efficiency of the worm screw mechanism meets the requirements of the specific high torque application.
- Load Holding: Another advantage of worm screws is their self-locking property. Due to the helical shape of the threads, the worm screw has a wedging effect on the worm wheel, which provides resistance against backward rotation. This self-locking feature allows worm screws to hold loads in a fixed position without the need for additional braking mechanisms. In high torque applications where load holding is required, worm screws can provide reliable and secure positioning.
- Material Selection: The materials used for the worm screw and worm wheel should be carefully selected to withstand high torque loads. Both components should have sufficient strength and wear resistance to handle the transmitted torque without deformation or premature failure. Depending on the specific application requirements, materials such as hardened steel, bronze, or other alloys may be chosen to ensure the durability and performance of the worm screw assembly.
- Lubrication and Maintenance: Proper lubrication is crucial for the smooth operation and longevity of a worm screw mechanism, especially in high torque applications. Adequate lubrication helps reduce friction, wear, and heat generation between the contacting surfaces, ensuring efficient torque transfer. Regular maintenance, including monitoring lubricant levels and replenishing or replacing the lubricant as needed, is essential to maintain optimal performance and prevent premature wear or failure.
Overall, worm screws can be effectively used in high torque applications, thanks to their gear reduction capabilities, load-holding properties, and efficient torque transmission. However, it’s important to carefully consider factors such as mechanical efficiency, material selection, lubrication, and maintenance to ensure that the worm screw mechanism can meet the specific requirements and demands of the high torque application.
Can worm screws be customized for specific engineering needs?
Yes, worm screws can be customized to meet specific engineering needs and application requirements. Customization allows for tailoring the design, dimensions, materials, and other parameters of the worm screw to optimize its performance and functionality. Here are some aspects of worm screws that can be customized:
- Thread Geometry: The thread geometry of a worm screw can be customized to suit specific requirements. This includes the shape, profile, lead angle, and thread form. Custom thread geometries can be designed to optimize load distribution, minimize friction, reduce backlash, improve efficiency, or achieve specific performance characteristics.
- Pitch and Lead: The pitch and lead of a worm screw can be tailored to meet the desired gear ratio, output speed, load capacity, and other performance criteria. Customizing the pitch and lead allows for precise control over the speed reduction or multiplication capabilities of the worm gear system.
- Materials: Worm screws can be customized to be made from different materials based on the specific application requirements. Common materials include steel, stainless steel, bronze, and various alloys. The choice of material depends on factors such as load capacity, durability, corrosion resistance, temperature tolerance, and other environmental considerations.
- Diameter and Length: The diameter and length of a worm screw can be customized to suit the mechanical constraints and dimensional requirements of the application. Custom sizing ensures proper fit, alignment, and integration within the overall system design.
- Coatings and Surface Treatments: Custom coatings or surface treatments can be applied to worm screws to enhance their performance and durability. These can include treatments such as hardening, heat treatment, plating, or specialized coatings to improve wear resistance, reduce friction, or provide corrosion protection.
- Special Features: Worm screws can be customized to incorporate special features or modifications based on specific engineering needs. This may include the addition of keyways, flanges, shaft extensions, or other components to facilitate integration with other system elements or to accommodate unique mechanical requirements.
Customization of worm screws requires collaboration between engineers, designers, and manufacturers with expertise in worm gear systems. It is important to define the specific engineering needs, performance requirements, and operational conditions to ensure that the customized worm screw meets the desired objectives effectively.
What is a worm screw in mechanical engineering?
In mechanical engineering, a worm screw, also known as a worm gear screw or worm gear, is a type of gear mechanism used to transmit motion and power between non-parallel shafts. It consists of a spiral-shaped screw, called the worm, and a gear wheel, called the worm wheel or worm gear. The worm screw and worm wheel have helical teeth that mesh together to transfer rotational motion.
The worm screw typically has a single thread or multiple threads wrapped around its cylindrical body. The worm wheel, on the other hand, has teeth that are specially shaped to mesh with the worm screw. The orientation of the worm screw and worm wheel is such that the axes of rotation are perpendicular to each other. This configuration allows the worm screw to convert rotational motion along its axis into rotary motion perpendicular to its axis.
One of the defining characteristics of a worm screw is its high gear ratio. Due to the helical nature of the teeth, a worm screw can achieve a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a substantial rotation of the worm wheel. The ratio of the number of teeth on the worm wheel to the number of threads on the worm screw determines the reduction ratio.
Worm screws have several advantages and applications in mechanical engineering:
- High Reduction Ratio: As mentioned earlier, worm screws offer high gear ratios, making them suitable for applications that require significant speed reduction and torque multiplication. They are commonly used in applications where large gear reductions are needed, such as in conveyor systems, winches, and lifting equipment.
- Self-Locking: A unique characteristic of worm screws is their self-locking property. The angle of the helical teeth creates a wedging effect that prevents the worm wheel from driving the worm screw. This self-locking feature allows worm screws to hold loads without the need for additional braking mechanisms, making them suitable for applications where holding positions or preventing back-driving is crucial, such as in elevators or lifting mechanisms.
- Smooth and Quiet Operation: The helical teeth of the worm screw and worm wheel facilitate smooth and quiet operation. The gradual engagement and disengagement of the teeth minimize noise, vibration, and backlash, resulting in a more efficient and reliable gear mechanism.
- Compact Design: Worm screws offer a compact design compared to other gear mechanisms. The perpendicular arrangement of the worm screw and worm wheel allows for a compact and space-saving installation, making them suitable for applications where size constraints are a consideration.
- Reduction of Input Speed: Worm screws are commonly used to reduce the speed of the input shaft while increasing torque. This is advantageous in applications where slower, controlled motion is required, such as in industrial machinery, conveyors, and robotics.
It should be noted that worm screws also have some limitations, including lower efficiency compared to other gear mechanisms, higher friction due to sliding motion, and limited reverse operation capabilities. Therefore, careful consideration of the specific application requirements is necessary when deciding whether to use a worm screw in a mechanical system.
editor by CX 2024-03-24
China Hot selling CHINAMFG Rolling Ball Screw with Smooth Operation for 3c Industry (BSD Series, Lead: 4mm, Shaft: 12mm)
Product Description
BSD Series Stepped Cold Rolled Ball Screw (C5/Ct7)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
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| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
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| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of BSD series(standard stepped cold rolled ball screw) are based on C5 and Ct7(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5) and 0.02mm or less(Ct7).
Material & Surface Hardness
BSD series (Standard Stepped cold rolled ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the BSD series (stepped cold rolled ball screw) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C5/C7 |
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| Screw Diameter: | 12mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 4-Row |
| Nut Type: | Stepped Type |
| Customization: |
Available
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What maintenance is required for worm screw gear systems?
Maintaining worm screw gear systems is essential to ensure their smooth operation, longevity, and optimal performance. Here are the key maintenance tasks typically required for worm screw gear systems:
- Lubrication: Proper lubrication is crucial for reducing friction, wear, and heat generation in worm screw gear systems. Regularly monitor lubricant levels and follow the manufacturer’s recommendations for lubrication intervals and types of lubricants to use. Inspect lubricant quality and cleanliness, and replenish or replace the lubricant as needed. Pay attention to proper lubrication in both the worm screw and the worm wheel to ensure efficient torque transmission and minimize wear.
- Cleaning: Regularly clean the worm screw gear system to remove dirt, debris, and contaminants that can accumulate on the threads, teeth, and other contacting surfaces. Use appropriate cleaning methods and solvents recommended by the manufacturer. Ensure that the cleaning process does not damage the components or compromise the lubrication system.
- Inspection: Conduct routine inspections to identify any signs of wear, damage, or misalignment in the worm screw gear system. Check for excessive backlash, abnormal noise, vibration, or irregularities in operation. Inspect the teeth, threads, and other critical areas for signs of wear, pitting, or scoring. If any issues are detected, take appropriate measures to address them promptly, such as adjusting the backlash or replacing worn components.
- Alignment: Proper alignment is crucial for the optimal performance and longevity of worm screw gear systems. Periodically check and adjust the alignment of the worm screw and the worm wheel to ensure smooth and efficient meshing. Misalignment can result in increased friction, wear, and reduced performance. Follow the manufacturer’s guidelines for alignment procedures and use precision measurement tools as necessary.
- Load Distribution: Monitor the load distribution across the teeth of the worm wheel. Uneven load distribution can lead to premature wear and failure of the system. If necessary, adjust loads, redistribute the load by using multiple worm screws, or consider using additional supporting mechanisms to ensure uniform load distribution.
- Temperature Monitoring: Keep an eye on the operating temperature of the worm screw gear system. Excessive heat can indicate problems such as inadequate lubrication, overloading, or inefficiencies. Monitor temperature using appropriate sensors or thermal imaging techniques and take corrective actions if the temperature exceeds recommended limits.
- Periodic Overhaul: Depending on the application and usage conditions, consider scheduling periodic overhauls or maintenance intervals for the worm screw gear system. During these overhauls, disassemble the system, inspect components thoroughly, replace worn or damaged parts, reassemble with proper lubrication, and perform necessary adjustments. The frequency of overhauls will depend on factors such as operating conditions, loads, and manufacturer recommendations.
- Documentation: Maintain proper documentation of maintenance activities, including lubrication schedules, inspection records, repair or replacement history, and any troubleshooting performed. This documentation provides a valuable reference for future maintenance, helps identify recurring issues, and enables better tracking of the system’s performance over time.
It’s important to note that specific maintenance requirements may vary depending on the design, materials, operating conditions, and manufacturer recommendations for the worm screw gear system. Always refer to the manufacturer’s documentation and guidelines for the particular system being used, and consult with experts or maintenance professionals if needed.
How does the pitch of a worm screw affect its performance?
The pitch of a worm screw plays a crucial role in determining its performance characteristics and capabilities. The pitch refers to the axial distance between consecutive threads on the worm screw. Here’s how the pitch of a worm screw affects its performance:
- Speed and Efficiency: The pitch of a worm screw directly influences the speed and efficiency of the worm gear system. A smaller pitch, which means a finer thread, results in a higher gear ratio and slower output speed. Conversely, a larger pitch, or coarser thread, leads to a lower gear ratio and faster output speed. This relationship between pitch and speed allows for speed reduction or multiplication in mechanical power transmission systems.
- Load Capacity: The pitch of a worm screw also affects its load-carrying capacity. A finer pitch tends to distribute the load over more threads, resulting in a larger contact area between the worm screw and the worm wheel. This increased contact area improves load distribution and allows for higher load capacity. Coarser pitches, on the other hand, may have a reduced contact area, which can limit the load-carrying capability of the worm gear system.
- Backlash: Backlash is the clearance or play between the threads of the worm screw and the teeth of the worm wheel. The pitch of a worm screw influences the amount of backlash present in the system. A finer pitch generally results in lower backlash due to the smaller clearance between the threads and the teeth. In contrast, coarser pitches may have increased backlash, which can negatively impact the system’s accuracy, precision, and responsiveness.
- Efficiency and Heat Generation: The pitch of a worm screw affects the overall efficiency of the worm gear system. Finer pitches tend to have higher efficiency due to reduced sliding friction between the threads and the teeth. This reduced friction results in less heat generation, contributing to higher overall system efficiency. Coarser pitches, on the other hand, may exhibit increased sliding friction, leading to higher energy losses and heat generation.
- Manufacturing and Design Considerations: The pitch of a worm screw also influences the manufacturing process and design considerations. Finer pitches generally require more precise machining or grinding processes to achieve the desired thread geometry. Coarser pitches, on the other hand, may offer advantages in terms of ease of manufacturing and reduced sensitivity to manufacturing tolerances. The selection of the optimal pitch depends on factors such as the desired gear ratio, load requirements, desired efficiency, and manufacturing capabilities.
It’s important to note that the pitch of a worm screw is typically specified by the manufacturer and should be chosen carefully based on the specific application requirements. Consulting with experts or engineers familiar with worm gear systems can help in selecting the appropriate pitch to achieve the desired performance and functionality.
How does a worm screw mechanism work?
A worm screw mechanism, also known as a worm gear mechanism, is a type of power transmission system that consists of a worm screw and a worm wheel. It is designed to transmit motion and power between non-parallel shafts. The mechanism works based on the interaction between the helical threads of the worm screw and the teeth of the worm wheel. Here’s a detailed explanation of how a worm screw mechanism works:
- Structure: The worm screw is a cylindrical shaft with a helical thread wrapped around it, resembling a screw. The worm wheel, also known as a worm gear, is a gear with teeth that mesh with the threads of the worm screw. The orientation of the worm screw and the worm wheel is such that the axes of rotation are perpendicular to each other.
- Motion Transmission: When the worm screw is rotated, its helical threads engage with the teeth of the worm wheel. As the worm screw rotates, it drives the worm wheel to rotate as well. The helical shape of the worm screw and the teeth of the worm wheel allow for motion transmission perpendicular to the axis of the worm screw.
- Gear Reduction: One of the key characteristics of a worm screw mechanism is its ability to provide a significant gear reduction. The helical threads of the worm screw and the meshing teeth of the worm wheel create a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a substantial rotation of the worm wheel. The gear reduction enables the worm screw mechanism to generate high torque output at the worm wheel.
- Self-Locking: A notable feature of the worm screw mechanism is its self-locking property. Due to the helical shape of the threads, the worm screw has a wedging effect on the worm wheel. This means that the worm wheel cannot easily rotate the worm screw. Instead, the worm screw tends to hold its position without the need for additional braking mechanisms. The self-locking feature makes the worm screw mechanism suitable for applications that require holding loads in a fixed position.
- Efficiency and Backlash: The efficiency of a worm screw mechanism can vary depending on factors such as the materials used, lubrication, and design parameters. However, compared to other gear systems, worm screw mechanisms tend to have lower efficiency due to inherent friction between the threads and teeth. Additionally, worm screw mechanisms may exhibit a certain amount of backlash, which refers to the slight play or clearance between the threads and teeth. Backlash can affect precision and introduce a small amount of lost motion in the system.
- Applications: Worm screw mechanisms find applications in various industries and machinery where motion transmission at right angles and high gear reduction ratios are required. Common applications include conveyor systems, lifting mechanisms, winches, automotive steering systems, robotics, and machine tools.
The worm screw mechanism offers a unique combination of motion transmission, gear reduction, and self-locking capabilities, making it suitable for specific applications where precise control, high torque output, and the ability to hold loads are essential.
editor by CX 2024-03-23
China high quality Double Nut Sfu5050 High-Speed Dfu5010 Custom Ball Screw
Product Description
Ball Screw with Nut details
Ball screw is made of screw, nut and ball. The function is to turn the rotary motion into liner motion, which is a further extension and development of ball screw. The significance of this development is to move into a rolling bearing from sliding action; With little friction, ball screws are widely used in various industrial equipment and precision instruments.
WHAT CAN WE SUPPLY?
-1.We have TBI or CHINAMFG sizes for your selection.
Our ball screws and nuts are the same sizes as TBI or CHINAMFG ,they can be interchanged with TBI or THK.
TBI sizes have enough inventory in stock.
CHINAMFG sizes are produced on request.
-2.We are able to machine the 2 end sides of ball screws according to your requirements.
-3.We have full range of products what can be matched with ball screws.
We are able to match for you completely, including Machined Ball screw, Ball screw Nut, Nut housing/Nut Bracket, Shaft Coupler, End support unit.
-4.We provide many different series of ball screws and screw nuts, like SFU,SFK,SFS,SFI,SFY,SFA,DFU,DFI series and so on.
| SFU Ball Screw Nut Model No.(plastic deflector or metal deflector ) |
| SFU1204-3;SFU1605-3;SFU1605-4; SFU1610-2; SFU2005-3;SFU2005-4;SFU2505-3;SFU2505-4;SFU2510-4;SFU3205-3; SFU3205-4;SFU4005-4;SFU4571-4; SFU5571-4;SFU6310-4;SFU8571-4 |
| SFK Ball Screw Model No. |
| SFK0601;SFK0801;SFK0802;SFK082.5;SFK1002;SFK1004;SFK1202;SFK1402 |
| SFS Ball Screw Model No. |
| SFS1205;SFS1210;SFS1605;SFS1610;SFS1616;SFS1620;SFS2571;SFS2510;SFS2525;SFS3210;SFS4571 |
| SFI Ball Screw Model No. |
| SFI1605;SFI1610;SFI2005;SFI2505;SFI2510;SFI3205;SFI3210;SFI4005;SFI4571 |
| SFE Ball Screw Model No. |
| SFE1616;SFE2571;SFE2525;SFE3232;SFE4040 |
| SFY Ball Screw Model No. |
| SFY1616;SFY2571;SFY2525;SFY3232;SFY4040 |
| SFA Ball Screw Model No. |
| SFA1610;SFA1620;SFA2571;SFA2510;SFA2525 |
| Ball Screw End Supports Model No. |
| BK10 BF10, BK12 BF12, BK15 BF15, BK17 BF17, BK20 BF20, BK25 BF25,BK30 BF30, BK35 BF35, BK40 BF40 |
| EK06 EF06, EK08 EF08, EK10 EF10, EK12 EF12, EK15 EF15, EK20 EF20; EK25 EF25 |
| FK06 FF6, FK08 FF08,FK10 FF10, FK12 FF12, FK15 FF15, FK20 FF20, FK25 FF25, FK30 FF30 |
| Ball Screw Nut Housings Model No. (Aluminium or Iron) |
| DSG12H(1204),DSG16H(1605/1610), DSG20H(2005/2571), DSG25H(2505/2510), DSG32H(3205/3210), DSG40H(4005/4571),DSG50H(5005/5571) |
Each series has its own characteristics. The following table list the differences in appearance and characteristics for your reference.
Rolled Ball Screw Application:
1. Engraving machines; 2. High speed CNC machinery;
4. Auto-machinery. 3. Semi-Conductor equipment;
5. Machine tools; 6. Industrial Machinery;
7. Printing machine; 8. Paper-processing machine;
9. Textiles machine; 10. Electronic machinery;
11. Transport machinery; 12. Robot etc.
Rolled ball screws can not only be used in above general machinery, but also in many advanced industries. Rolled ball screw with a motor assembles electrical-mechanical actuator, which is more eco-friendly than hydraulic pump system. Nowadays it’s applied to electric vehicles, solar power plants, railway devices and many medical and leisure equipments.
/* 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
| Precision: | C7 |
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| Screw Diameter: | 31-40mm |
| Flange: | Without Flange |
| Customization: |
Available
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What are the common issues or failures associated with worm screws?
Worm screws, like any mechanical component, can experience certain issues or failures over time. Understanding these common problems is important for proper maintenance and troubleshooting. Here are some common issues or failures associated with worm screws:
- Wear and Surface Damage: Due to the sliding contact between the threads of the worm screw and the teeth of the worm wheel, wear can occur over time. This wear can lead to surface damage, such as pitting, scoring, or galling. Excessive wear and surface damage can affect the performance and efficiency of the worm screw gear system, resulting in increased backlash, decreased torque transmission, and potential failure.
- Lubrication Problems: Inadequate or improper lubrication is a common cause of issues in worm screw systems. Insufficient lubrication can lead to increased friction, heat generation, and accelerated wear. On the other hand, over-lubrication can cause excessive drag and fluid churn, leading to inefficient power transmission. It is important to follow the manufacturer’s recommendations for lubrication intervals, types of lubricants, and proper lubrication techniques to ensure optimal performance and longevity of the worm screw system.
- Backlash and Inaccuracy: Backlash refers to the play or clearance between the threads of the worm screw and the teeth of the worm wheel. Excessive backlash can result in reduced accuracy, loss of motion control, and diminished overall system performance. Backlash can be caused by factors such as wear, misalignment, or improper assembly. Regular inspection and adjustment of backlash are necessary to maintain the desired precision and minimize the effects of backlash-related issues.
- Misalignment: Misalignment between the worm screw and the worm wheel can result in increased friction, wear, and inefficiencies. Misalignment can occur due to factors such as improper installation, component deformation, or external forces. It is essential to ensure proper alignment during installation and periodically check for misalignment during routine maintenance. Adjustments should be made as necessary to maintain optimal performance and prevent premature failure.
- Overloading: Subjecting the worm screw gear system to excessive loads beyond its design limits can lead to failure. Overloading can result in accelerated wear, tooth breakage, or component deformation. It is important to operate the system within the specified load limits and consider factors such as shock loads, dynamic loads, and variations in operating conditions. If higher loads are required, it may be necessary to select a worm screw system with a higher load capacity or redesign the system accordingly.
- Corrosion and Contamination: Corrosion and contamination can negatively impact the performance and lifespan of worm screw systems. Exposure to moisture, chemicals, or abrasive particles can lead to corrosion, rusting, or damage to the surfaces of the worm screw and worm wheel. Contamination can interfere with smooth operation and cause accelerated wear. Proper environmental protection, regular cleaning, and appropriate sealing measures can help mitigate the effects of corrosion and contamination.
- Insufficient Stiffness: Worm screws rely on proper support and stiffness to maintain accurate positioning and prevent deflection. Inadequate stiffness in the supporting structure or mounting arrangement can result in excessive deflection, misalignment, and decreased performance. It is crucial to ensure that the worm screw system is properly supported and mounted to maintain the required rigidity and stiffness for optimal operation.
It’s important to note that the specific issues or failures associated with worm screws can vary depending on factors such as the application, operating conditions, maintenance practices, and the quality of the components. Regular inspection, proper lubrication, alignment checks, load monitoring, and adherence to manufacturer guidelines are essential for minimizing the occurrence of these issues and ensuring the reliable and efficient operation of worm screw systems.
What are the latest innovations in worm screw design and materials?
In recent years, there have been several notable innovations in worm screw design and materials that aim to improve performance, efficiency, durability, and overall functionality. Here are some of the latest advancements in this field:
- Advanced Materials: One of the significant trends in worm screw design is the use of advanced materials. Manufacturers are exploring materials with enhanced strength, wear resistance, and fatigue properties. For example, advanced alloys and composite materials are being employed to improve load capacity, reduce weight, and increase the longevity of worm screws. Additionally, advancements in material science and engineering are leading to the development of self-lubricating materials, which can minimize friction and improve efficiency by reducing the need for external lubrication.
- Improved Thread Geometries: Innovations in thread geometries have focused on optimizing load distribution, reducing friction, and improving efficiency. Researchers and engineers are developing novel thread profiles and forms that enhance contact between the worm screw and the worm wheel. These designs help minimize backlash, increase load-carrying capacity, and improve overall system performance. Additionally, advancements in computer simulations and modeling techniques enable more accurate analysis and optimization of thread geometries for specific applications.
- Surface Treatments and Coatings: Surface treatments and coatings are being applied to worm screws to enhance their performance and durability. For instance, advanced coatings such as diamond-like carbon (DLC) coatings or specialized lubricious coatings help reduce friction, improve wear resistance, and minimize the need for external lubrication. Surface treatments like nitriding or carburizing can improve hardness and provide resistance against abrasive wear, increasing the lifespan of worm screws.
- Precision Manufacturing: Innovations in manufacturing processes and technologies have enabled the production of worm screws with higher precision and tighter tolerances. Advanced machining techniques, such as CNC grinding and high-precision gear hobbing, allow for the creation of worm screws with superior dimensional accuracy, improved surface finish, and better tooth profile control. These manufacturing advancements contribute to enhanced performance, reduced backlash, and increased overall system efficiency.
- Computer-Aided Design and Simulation: The use of computer-aided design (CAD) software and simulation tools has revolutionized worm screw design and optimization. Engineers can now create virtual models, simulate the behavior of worm gear systems, and analyze various design parameters to optimize performance before physical prototypes are manufactured. This iterative design process helps reduce development time, minimize costs, and improve the final design and performance of worm screws.
- Integration with Digitalization and Automation: The integration of worm gear systems with digitalization and automation technologies is another area of innovation. Worm screws are being designed to work seamlessly with sensor technologies, allowing for real-time monitoring of performance parameters such as temperature, vibration, and load. This data can be utilized for predictive maintenance, condition monitoring, and optimization of the overall system performance.
It’s important to note that the field of worm screw design and materials is continuously evolving, and new innovations are being introduced regularly. Keeping up with the latest research, advancements, and industry developments is crucial for engineers, designers, and manufacturers involved in worm gear system applications.
How do you calculate the gear ratio for a worm screw and gear setup?
In a worm screw and gear setup, the gear ratio is determined by the number of teeth on the worm wheel (gear) and the number of threads on the worm screw. The gear ratio represents the relationship between the rotational speed of the worm screw and the resulting rotational speed of the worm wheel. The formula to calculate the gear ratio is as follows:
Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Screw
Here’s a step-by-step process to calculate the gear ratio:
- Count the number of teeth on the worm wheel. This can be done by visually inspecting the gear or referring to its specifications.
- Count the number of threads on the worm screw. The threads refer to the number of complete turns or helical grooves wrapped around the cylindrical body of the worm screw.
- Divide the number of teeth on the worm wheel by the number of threads on the worm screw.
- The result of the division is the gear ratio. It represents the number of revolutions of the worm screw required to complete one revolution of the worm wheel.
For example, let’s say the worm wheel has 40 teeth, and the worm screw has 2 threads. Using the formula, we can calculate the gear ratio as follows:
Gear Ratio = 40 teeth / 2 threads = 20
In this case, for every full revolution of the worm screw, the worm wheel will rotate 1/20th of a revolution. This indicates a significant speed reduction, resulting in high torque output at the worm wheel.
It’s important to note that the gear ratio calculated using this formula assumes an ideal scenario without considering factors like friction, efficiency losses, or the pitch diameter of the gears. In practical applications, these factors may affect the actual gear ratio and performance of the worm screw and gear setup.
editor by CX 2024-03-23
China wholesaler CHINAMFG Rolled Ball Screw Bearing for Machine Tool (TXR Series, Lead: 2mm, Shaft: 8mm)
Product Description
TXR Series Sleeve Type Single Nut Ball Screw (C5/Ct7/Ct10)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of TXR series(sleeve type single nut ball screw)are based on C5,Ct7 and Ct10(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5),0.02(Ct7) and 0.05mm or less(Ct10).
Material & Surface Hardness
TXR series (sleeve type single nut ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the TXR series (sleeve type single nut ball screws) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C7 |
|---|---|
| Screw Diameter: | 8mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 4-Row |
| Nut Type: | Sleeve Type Single Nut |
| Customization: |
Available
|
|
|---|
How do you properly lubricate a worm screw and gear assembly?
Proper lubrication is essential for the smooth and efficient operation of a worm screw and gear assembly. Lubrication helps reduce friction, wear, and heat generation between the contacting surfaces, thereby extending the lifespan of the components. Here are the steps to properly lubricate a worm screw and gear assembly:
- Clean the Assembly: Before applying lubrication, ensure that the worm screw and gear assembly is free from dirt, debris, and old lubricant residues. Clean the surfaces using an appropriate cleaning agent or solvent, followed by a thorough drying process.
- Select the Right Lubricant: Choose a lubricant specifically designed for gear systems or worm screw applications. Consider factors such as viscosity, temperature range, load capacity, and compatibility with the materials used in the assembly. Consult the manufacturer’s recommendations or lubrication guidelines for the specific assembly to determine the suitable lubricant type and grade.
- Apply the Lubricant: Apply the lubricant to the contacting surfaces of the worm screw and gear assembly. Use an appropriate applicator, such as a brush, oil can, or grease gun, depending on the lubricant form (oil or grease) and the accessibility of the components. Ensure complete coverage of the gear teeth, worm screw threads, and other relevant surfaces. Pay attention to areas where the most significant friction and wear occur.
- Monitor the Lubricant Level: Check the lubricant level regularly to ensure an adequate supply. Depending on the application and operating conditions, lubricant consumption or degradation may occur over time. It is important to maintain the lubricant level within the recommended range to ensure proper lubrication and prevent excessive wear or overheating.
- Periodic Lubrication Maintenance: Establish a lubrication maintenance schedule based on the operating conditions and manufacturer’s recommendations. Regularly inspect the assembly for signs of lubricant degradation, contamination, or insufficient lubrication. Replace the lubricant as needed and follow the recommended intervals for lubricant replenishment or reapplication.
- Consideration for Grease Lubrication: If using grease as the lubricant, it is important to choose a high-quality grease suitable for worm screw applications. Grease provides better adhesion to surfaces and tends to stay in place, offering longer-lasting lubrication compared to oil. However, excessive grease accumulation or over-greasing should be avoided, as it can lead to increased friction and inefficiency.
It is crucial to follow the manufacturer’s guidelines and recommendations for lubrication specific to the worm screw and gear assembly. Different assemblies may have unique lubrication requirements based on their design, load capacity, operating conditions, and materials used. By properly lubricating the worm screw and gear assembly, you can ensure optimal performance, reduce wear, and extend the operational life of the components.
How do environmental factors affect the lifespan and performance of worm screws?
Environmental factors can have a significant impact on the lifespan and performance of worm screws. Here are some ways in which different environmental conditions can affect worm screw operation:
- Temperature: Extreme temperatures can affect the material properties of worm screws. High temperatures can cause thermal expansion, leading to increased clearances and reduced efficiency. It can also accelerate wear and degradation of lubricants, leading to increased friction and potential damage. Conversely, extremely low temperatures can make lubricants less effective and increase the risk of brittle fracture or reduced flexibility in materials.
- Humidity and Moisture: Exposure to high humidity or moisture can lead to corrosion and rusting of worm screws, especially when they are made of materials that are not resistant to moisture. Corrosion can cause surface pitting, reduced strength, and accelerated wear, ultimately compromising the performance and lifespan of the worm screw.
- Dust and Contaminants: Dust, dirt, and other contaminants present in the environment can enter the worm gear system and cause abrasive wear on the worm screw. These particles can act as abrasives, accelerating the wear of the contacting surfaces and potentially leading to premature failure or reduced performance. Regular cleaning and maintenance are essential to mitigate the effects of dust and contaminants.
- Chemical Exposure: Exposure to chemicals, such as acids, solvents, or corrosive substances, can have a detrimental effect on worm screws. Chemicals can corrode the surfaces, degrade lubricants, and affect the material properties, leading to reduced lifespan and compromised performance. Choosing materials and coatings that are resistant to specific chemicals present in the environment is crucial for long-term performance.
- Load and Overloading: Environmental conditions, such as heavy loads or overloading, can significantly impact the lifespan and performance of worm screws. Excessive loads can lead to increased stress levels, deformation, and accelerated wear on the worm screw. It is important to operate worm gear systems within their specified load capacities and avoid overloading to ensure optimal performance and longevity.
- Operating Speed: The operating speed of the worm screw can also be influenced by environmental factors. High-speed applications may generate more heat due to friction, necessitating effective cooling mechanisms. On the other hand, low-speed applications may exhibit reduced lubrication effectiveness, requiring specific lubricants or maintenance practices to ensure proper lubrication and prevent excessive wear.
To mitigate the effects of environmental factors, proper maintenance, regular inspection, and suitable protective measures are essential. This includes using appropriate lubricants, implementing effective sealing mechanisms, applying protective coatings, and considering environmental factors during the design and material selection process. By considering and addressing environmental factors, the lifespan and performance of worm screws can be optimized, ensuring reliable operation in various operating conditions.
How does a worm screw mechanism work?
A worm screw mechanism, also known as a worm gear mechanism, is a type of power transmission system that consists of a worm screw and a worm wheel. It is designed to transmit motion and power between non-parallel shafts. The mechanism works based on the interaction between the helical threads of the worm screw and the teeth of the worm wheel. Here’s a detailed explanation of how a worm screw mechanism works:
- Structure: The worm screw is a cylindrical shaft with a helical thread wrapped around it, resembling a screw. The worm wheel, also known as a worm gear, is a gear with teeth that mesh with the threads of the worm screw. The orientation of the worm screw and the worm wheel is such that the axes of rotation are perpendicular to each other.
- Motion Transmission: When the worm screw is rotated, its helical threads engage with the teeth of the worm wheel. As the worm screw rotates, it drives the worm wheel to rotate as well. The helical shape of the worm screw and the teeth of the worm wheel allow for motion transmission perpendicular to the axis of the worm screw.
- Gear Reduction: One of the key characteristics of a worm screw mechanism is its ability to provide a significant gear reduction. The helical threads of the worm screw and the meshing teeth of the worm wheel create a high reduction ratio in a single gear stage. This means that a small rotation of the worm screw can result in a substantial rotation of the worm wheel. The gear reduction enables the worm screw mechanism to generate high torque output at the worm wheel.
- Self-Locking: A notable feature of the worm screw mechanism is its self-locking property. Due to the helical shape of the threads, the worm screw has a wedging effect on the worm wheel. This means that the worm wheel cannot easily rotate the worm screw. Instead, the worm screw tends to hold its position without the need for additional braking mechanisms. The self-locking feature makes the worm screw mechanism suitable for applications that require holding loads in a fixed position.
- Efficiency and Backlash: The efficiency of a worm screw mechanism can vary depending on factors such as the materials used, lubrication, and design parameters. However, compared to other gear systems, worm screw mechanisms tend to have lower efficiency due to inherent friction between the threads and teeth. Additionally, worm screw mechanisms may exhibit a certain amount of backlash, which refers to the slight play or clearance between the threads and teeth. Backlash can affect precision and introduce a small amount of lost motion in the system.
- Applications: Worm screw mechanisms find applications in various industries and machinery where motion transmission at right angles and high gear reduction ratios are required. Common applications include conveyor systems, lifting mechanisms, winches, automotive steering systems, robotics, and machine tools.
The worm screw mechanism offers a unique combination of motion transmission, gear reduction, and self-locking capabilities, making it suitable for specific applications where precise control, high torque output, and the ability to hold loads are essential.
editor by CX 2024-03-22
China Professional CHINAMFG Rolled C5&C7 Grade Ball Screw for Valve Switch Device (BSD Series, Lead: 10mm, Shaft: 12mm)
Product Description
BSD Series Stepped Cold Rolled Ball Screw (C5/Ct7)
| Table of Shaft dia. and Lead combination for Rolled Ball Screw | ||||||||||||||||
| Lead (mm) | ||||||||||||||||
| 0.5 | 1 | 1.5 | 2 | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 15 | 20 | 30 | ||
| Shaft dia (mm) | 4 | / | / | |||||||||||||
| 5 | / | |||||||||||||||
| 6 | / | / | / | / | ||||||||||||
| 8 | / | / | / | / | / | / | / | |||||||||
| 10 | / | / | / | / | / | / | / | / | / | |||||||
| 12 | / | / | ||||||||||||||
| 13 | / | / | / | |||||||||||||
| 14 | / | / | ||||||||||||||
| 15 | / | / | / | |||||||||||||
| 16 | ||||||||||||||||
Accuracy Class & Axial Clearance
Accuracy grade of BSD series(standard stepped cold rolled ball screw) are based on C5 and Ct7(JIS B 1192-3). According to accuracy grade, Axial play 0.005(Preload :C5) and 0.02mm or less(Ct7).
Material & Surface Hardness
BSD series (Standard Stepped cold rolled ball screw) of screw shaft screw material S55C (induction hardening), nut material SCM415H (carburizing and hardening), the surface hardness of the ball screw part is HRC58 or higher.
Shaft End Shape
The shape of the shaft end of the BSD series (stepped cold rolled ball screw) has been standardized.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Technical Drawing
Specification List
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CHINAMFG China?
Over the past 14 years, CHINAMFG has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you CHINAMFG back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Precision: | C5/C7 |
|---|---|
| Screw Diameter: | 12mm |
| Flange: | With Flange |
| Nut Number: | Single |
| Rows Number: | 3-Row |
| Nut Type: | Stepped Type |
| Customization: |
Available
|
|
|---|
What are the limitations of using worm screws in mechanical designs?
While worm screws offer several advantages in mechanical designs, they also have some limitations that should be considered. Here are the key limitations of using worm screws:
- Lower Mechanical Efficiency: Worm screw mechanisms tend to have lower mechanical efficiency compared to other gear systems. This is primarily due to the sliding contact between the worm screw threads and the worm wheel teeth, which results in higher friction and energy losses. The lower mechanical efficiency can lead to heat generation, reduced power transmission, and decreased overall system efficiency. It’s important to consider the trade-off between the desired gear reduction and the mechanical efficiency requirements of the specific application.
- Limited High-Speed Applications: Worm screws are not well-suited for high-speed applications. The sliding contact and meshing action between the threads and teeth can generate heat and cause wear at high rotational speeds. Additionally, the higher friction and lower mechanical efficiency mentioned earlier can limit the maximum achievable speed of the system. If high-speed operation is a requirement, alternative gear systems, such as spur gears or helical gears, may be more suitable.
- Backlash: Worm screw mechanisms can exhibit a certain amount of backlash, which is the lost motion or clearance between the threads and teeth when changing direction. Backlash can negatively impact precision and positioning accuracy in applications that require tight tolerances. It’s important to consider backlash and implement measures to minimize its effects, such as using anti-backlash mechanisms or incorporating backlash compensation techniques.
- Material Selection: The choice of materials for worm screws is crucial to ensure their durability and performance. Worm screws typically require harder materials to withstand the sliding contact and high contact pressures between the threads and teeth. The selection of suitable materials may increase the manufacturing complexity and cost of the worm screw assembly. Additionally, the choice of materials should consider factors such as compatibility, wear resistance, and the specific operating conditions of the application.
- Load Distribution: In worm screw mechanisms, the load is distributed over a limited number of teeth on the worm wheel. This concentrated load distribution can result in higher stresses and wear on the contacting surfaces. It’s important to consider the load capacity and contact area of the worm wheel teeth to ensure that the assembly can handle the anticipated loads without premature failure or excessive wear.
- Required Lubrication: Proper lubrication is crucial for the smooth operation and longevity of worm screw mechanisms. Lubrication helps reduce friction, wear, and heat generation between the contacting surfaces. However, the need for lubrication adds complexity to the design and maintenance of the system. It requires regular monitoring of lubricant levels and periodic lubricant replenishment or replacement. Failure to maintain proper lubrication can result in increased friction, wear, and potential system failure.
Despite these limitations, worm screws continue to be widely used in various mechanical designs due to their unique characteristics and advantages. It’s essential to carefully evaluate the specific requirements and constraints of the application and consider alternative gear systems if the limitations of worm screws pose significant challenges to the desired performance and efficiency.
Are there different types of worm screws available?
Yes, there are different types of worm screws available to suit various applications and requirements. The design and characteristics of a worm screw can vary based on factors such as the material used, the thread geometry, the type of worm wheel, and the intended application. Here are some common types of worm screws:
- Standard Worm Screws: Standard worm screws are the most commonly used type and are available in a wide range of sizes and materials. They typically have a single-start thread and are made from materials such as steel, stainless steel, or bronze. Standard worm screws are suitable for general-purpose applications where moderate precision and load capacity are required.
- Double-Enveloping Worm Screws: Double-enveloping worm screws, also known as hourglass worm screws, have a unique thread profile that improves contact and load distribution between the worm screw and the worm wheel. This design offers enhanced torque transmission, higher efficiency, and increased load-carrying capacity compared to standard worm screws. Double-enveloping worm screws are often used in heavy-duty applications, such as gearboxes and high-load power transmission systems.
- Low-Lead Worm Screws: Low-lead worm screws have a smaller thread lead angle compared to standard worm screws. This design reduces the amount of sliding contact between the threads of the worm screw and the teeth of the worm wheel, resulting in lower friction and improved efficiency. Low-lead worm screws are commonly used in applications where high efficiency and reduced heat generation are critical, such as in precision machinery and high-speed gear systems.
- Self-Locking Worm Screws: Self-locking worm screws are designed to have a high friction angle between the threads, making them capable of preventing reverse motion or backdriving. This self-locking feature eliminates the need for additional braking mechanisms or external locking devices in certain applications. Self-locking worm screws are commonly used in vertical lift systems, hoists, and other applications where holding the load position is essential.
- High-Precision Worm Screws: High-precision worm screws are manufactured to tighter tolerances and have improved accuracy compared to standard worm screws. They are designed to provide precise positioning and motion control in applications where high accuracy and repeatability are required. High-precision worm screws are often used in CNC machines, robotics, and other precision equipment.
- Customized Worm Screws: In addition to the standard types mentioned above, worm screws can also be customized to meet specific application requirements. Customized worm screws may involve variations in thread geometry, pitch, diameter, materials, or other parameters to suit unique applications or performance specifications.
The selection of the appropriate type of worm screw depends on factors such as the desired load capacity, efficiency requirements, backlash tolerance, positional accuracy, and environmental conditions. It is important to consult with manufacturers, engineers, or experts familiar with worm screw applications to determine the most suitable type for a specific application.
What are the advantages of using a worm screw in gear systems?
Using a worm screw in gear systems offers several advantages that make it a preferred choice in certain applications. Here are some of the advantages of using a worm screw:
- High Gear Reduction: One of the primary advantages of a worm screw is its ability to provide a high gear reduction ratio in a single stage. The helical threads of the worm screw and the meshing teeth of the worm wheel create a significant reduction in rotational speed. This allows for efficient torque multiplication, enabling the transmission of high torque output from the worm screw to the worm wheel. The high gear reduction is beneficial in applications that require slow and powerful movements, such as lifting heavy loads or controlling conveyor systems.
- Compact Design: Worm screw mechanisms are known for their compact design. Compared to other gear systems, such as spur gears or helical gears, a worm screw setup can achieve a similar gear reduction with fewer components. This makes it a space-saving solution, especially in applications where limited space is available or where a compact design is desired.
- Self-Locking: The self-locking property of a worm screw is a significant advantage in many applications. Due to the helical shape of the threads, the worm screw has a natural tendency to hold its position and prevent backward rotation of the worm wheel. This self-locking feature eliminates the need for additional braking mechanisms or external locking devices, simplifying the overall system design and improving safety and stability in applications that require load holding or position locking.
- Right-Angle Transmission: Worm screw mechanisms provide motion transmission at a right angle, allowing for the transfer of motion between non-parallel shafts. This makes them suitable for applications where the input and output shafts are oriented perpendicular to each other. Examples include automotive steering systems, where the rotational motion from the steering wheel needs to be converted into lateral motion for steering the vehicle.
- Quiet Operation: Worm screw gear systems tend to operate quietly compared to other gear configurations. The helical threads of the worm screw and the meshing teeth of the worm wheel engage gradually, resulting in smoother and quieter operation. This can be advantageous in applications where noise reduction is desirable, such as in office equipment, appliances, or environments where low noise levels are required.
It’s important to note that while worm screw mechanisms offer these advantages, there are also some considerations to keep in mind. For instance, worm screws can have lower mechanical efficiency compared to other gear systems due to inherent friction between the threads and teeth, leading to energy losses. Additionally, they may exhibit a certain amount of backlash, which can affect precision and introduce a small amount of lost motion in the system. Nevertheless, the unique characteristics of worm screws make them a valuable choice in various applications where high gear reduction, self-locking, compactness, and right-angle transmission are essential.
editor by CX 2024-03-22