China manufacturer CHINAMFG Rolled Precision Miniature Ball Screw for Electric Motor (BSD Series, Lead: 12mm, Shaft: 8mm)

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: 8mm
Flange: With Flange
Nut Number: Single
Rows Number: 3-Row
Nut Type: Stepped Type
Customization:
Available

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worm screw

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. 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.
  8. 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.

worm screw

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

worm screw

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:

  1. 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.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.

China manufacturer CHINAMFG Rolled Precision Miniature Ball Screw for Electric Motor (BSD Series, Lead: 12mm, Shaft: 8mm)  China manufacturer CHINAMFG Rolled Precision Miniature Ball Screw for Electric Motor (BSD Series, Lead: 12mm, Shaft: 8mm)
editor by CX 2024-03-28

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