China Professional Custom 304 Stainless Steel Gear Screw CNC Machining worm and wheel gear

Product Description

Products Description

Computer Numerical Control (CNC) Machining makes the machining process automated. The computer controller deciphers G-Code and M-Code (written programs) to determine the tool path for selective material removal. Machining used to be a manual process which introduced a significant potential for human error. By making the process computer-controlled, the machining is more consistent and lends itself well to mass production.
SAIVS specializes in small to medium parts manufacturing, CNC turning, and CNC milling for the marine, telecommunications, transportation, and auto industries to name a few. We always ensure that our customers receive machined components with absolute accuracy and within critical tolerances. CHINAMFG is experienced in machining both ferrous and non-ferrous metals. We have a wide range of machinery from, horizontal and vertical 4 ax4-axis machining centers, and 3 axis turning centers. Below are more specific details about our equipment.

Item Name: 

  Custom 304 Stainless steel Gear Screw CNC machining


Aluminum, stainless steel, copper, brass, galvinized etc.


Natural Color



Surface finish:   Hard Coating/Black Anodize/Clear Anodize/Hard  Chrome/Clear Zinc/Plasma Niride


Customized Size


Turning, Milling, Lathing, Drilling, Honing, Grinding

Testing Equipment:

Projector, Pin Gauge, CMM

What kind of material we can do ?

Gray Iron: HT150, HT200, HT250, HT300, HT350; GJL-100, GJL-150, GJL-200, GJL-250, GJL-300, GJL-350; GG10~GG40. Ductile Iron or

Nodular Iron: GGG40, GGG50, GGG60, GGG70, GGG80; GJS-400-18, GJS-40-15, GJS-450-10, GJS-500-7, GJS-600-3, GJS-700-2, GJS-800-2;

QT400-18, QT450-10, QT500-7, QT600-3, QT700-2, QT800-2;

Quality Control

1) Checking the raw material after they reach our factory——- Incoming quality control ( IQC)                 
2) Checking the details before the production line operated                                     
3) Have a full inspection and routing inspection during mass production—In-process quality control(IPQC)                               
4) Checking the goods after they are finished—- Final quality control(FQC)                                                                                         
5) Checking the goods after they are finished—–Outgoing quality control(OQC)

Company Profile
Product packaging

Q: Are you a trading company or manufacturer?
A: We are a factory with more than 20 years’ experience.

Q: How long for delivery?
A: Generally it is 15-30days as we are a customized service we confirm with customers when place order.

Q: What is the MOQ?
A: It depends on what you are buying. Normally, our minimum order is 1 20′ full container and an LCL container (less than a
container load) can be acceptable.

Q: Can you customize my products?
A: Yes, we can customize products with your design drawings like DWG, DXF, DXW, IGES, STEP, PDF, etc.

Q: What is your terms of payment?
A: 30% T/T in advance, balance before shipment, or as per discussion.

Q: What about your quality control?
A: * . Checking the raw material after they reach our factory—–Incoming quality control(IQC)
    * . Checking the details before the production line operated
    * . Have a full inspection and routing inspection during mass production—-In-process quality control(IPQC)
    * . Checking the goods after they are finished—-Final quality control(FQC)
    * . Checking the goods after they are finished—-Outgoing quality control(QC)
    * . 100% inspection and delivery before shipment /* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Fastener, Auto and Motorcycle Accessory, Hardware Tool, Machinery Accessory
Standard: GB, EN
Surface Treatment: Customized
Production Type: Mass Production
Machining Method: CNC Machining
Material: Steel, Alloy, Customized


Customized Request

screw gear

Are screw gears suitable for high-torque applications?

Using screw gears, also known as worm gears, in high-torque applications requires careful consideration. The torque capacity of screw gears can be a limiting factor due to their unique design and characteristics. Here’s a detailed explanation of the suitability of screw gears for high-torque applications:

Yes, screw gears can be suitable for high-torque applications, but there are certain limitations to consider:

  • Lower Torque Capacity: Screw gears generally have a lower torque capacity compared to other gear types, such as spur gears or helical gears. The sliding contact between the worm gear and worm wheel, coupled with the high gear ratios typically associated with screw gears, can result in higher contact stresses and increased wear. Therefore, screw gears are generally not the first choice for applications with extremely high torque requirements.
  • Efficiency and Heat Generation: In high-torque applications, the efficiency of the gear system becomes crucial. Screw gears, due to their sliding motion and higher friction compared to other gear types, can have lower mechanical efficiency. This lower efficiency leads to increased heat generation, which may be a concern in high-torque applications where heat dissipation becomes challenging. Proper lubrication, cooling, and heat management strategies are important to ensure reliable operation under high torque conditions.
  • Load Distribution: The load distribution in a screw gear mechanism is not as uniform as in some other gear types. The load is concentrated on a limited number of teeth, which can lead to higher tooth stresses and potential wear. This concentration of load can be a limiting factor in high-torque applications, as it can result in premature gear failure or reduced lifespan.
  • Application-Specific Considerations: While screw gears may have limitations in high-torque applications, there are scenarios where they can still be suitable. For example, in applications that require precise positioning, heavy loads, or the ability to hold position without additional braking mechanisms, the self-locking feature of screw gears can be advantageous. Additionally, advancements in gear design, materials, and lubrication can help improve the torque capacity and performance of screw gears in specific high-torque applications.

When considering the use of screw gears in high-torque applications, it is important to carefully evaluate the specific torque requirements, operating conditions, and other factors such as speed, duty cycle, and environmental considerations. Consulting with experienced engineers and conducting thorough analysis will help determine whether screw gears are suitable or if alternative gear types should be considered to meet the high-torque demands of the application.

screw gear

How do you retrofit an existing mechanical system with screw gears?

Retrofitting an existing mechanical system with screw gears, also known as worm gears, involves replacing or modifying the existing gear system to incorporate screw gears. Here’s a detailed explanation of the steps involved in retrofitting an existing mechanical system with screw gears:

  1. Evaluate the Existing System: Begin by evaluating the existing mechanical system to understand its design, function, and the specific requirements for retrofitting. Identify the type of gears currently in use and assess their limitations or shortcomings that warrant the retrofit. Consider factors such as load capacity, speed requirements, space constraints, and the desired performance improvements.
  2. Analyze Compatibility: Determine the compatibility of screw gears with the existing system. Consider factors such as available space, alignment requirements, torque and speed requirements, and the feasibility of integrating screw gears into the system. Assess whether any modifications or adaptations are needed to accommodate the screw gears effectively.
  3. Design Considerations: Based on the evaluation and compatibility analysis, develop a design plan for incorporating screw gears into the existing system. Consider aspects such as gear ratios, torque requirements, lubrication systems, mounting arrangements, and any necessary modifications to the system components or structure. Ensure that the design meets the specific performance and functional objectives of the retrofit.
  4. Select Screw Gear Components: Choose the appropriate screw gear components based on the design requirements and the specifications of the existing system. Consider factors such as gear material, tooth profile, helix angle, pitch diameter, and the number of starts. Select components that are compatible with the load, speed, and operating conditions of the retrofit application.
  5. Fabrication or Procurement: Once the screw gear components are selected, proceed with the fabrication or procurement of the required parts. This may involve manufacturing the screw gear components or purchasing them from a reliable supplier. Ensure that the components meet the specified quality standards and are suitable for the retrofit application.
  6. Installation: Install the screw gears into the existing mechanical system as per the design plan. This may involve removing the old gears and replacing them with the new screw gears or modifying the existing gear system to accommodate the screw gears. Follow proper installation procedures, ensuring correct alignment, lubrication, and torque specifications.
  7. Testing and Adjustment: After the installation, conduct thorough testing of the retrofitted system to verify its performance and functionality. Check for proper gear engagement, smooth operation, and the ability to handle the intended loads and speeds. Make any necessary adjustments or fine-tuning to optimize the performance of the retrofit and ensure its reliable operation.
  8. Documentation and Maintenance: Document the retrofit process, including design specifications, installation procedures, and any modifications made to the existing system. This documentation will be valuable for future reference, maintenance, and troubleshooting. Establish a regular maintenance schedule to inspect and maintain the retrofitted system, including lubrication, gear wear monitoring, and any recommended servicing.

Retrofitting an existing mechanical system with screw gears requires careful planning, design considerations, and proper execution. By following these steps and ensuring compatibility, proper component selection, and installation, it is possible to successfully integrate screw gears into an existing system, improving its performance, efficiency, and functionality.

screw gear

Can you explain the concept of screw gear threads and their functions?

Screw gear threads play a crucial role in the operation and functionality of screw gears, also known as worm gears. The threads are an essential component of the worm, which is the cylindrical gear with a helical thread wrapped around it. Here is a detailed explanation of the concept of screw gear threads and their functions:

  • Thread Design: The threads on a screw gear, specifically the helical thread on the worm, are designed in a helical shape, resembling the threads of a screw. The helical thread is wrapped around the cylindrical body of the worm, creating a continuous spiral path along its length. The pitch of the thread refers to the distance between successive thread crests or valleys.
  • Meshing with Worm Wheel: The primary function of the screw gear threads is to mesh with the teeth of the worm wheel. The helical thread of the worm engages with the teeth of the worm wheel, creating a sliding contact between them. As the worm rotates, the helical thread drives the rotation of the worm wheel, transmitting rotational motion and power.
  • Gear Reduction and Torque Multiplication: The helical design of the screw gear threads allows for a large number of teeth on the worm wheel to be engaged at any given time. This results in a high gear reduction ratio, meaning that for each revolution of the worm, the worm wheel rotates by a smaller fraction. The gear reduction ratio enables torque multiplication, making screw gears suitable for applications requiring high torque output.
  • Precision Positioning: Screw gear threads are crucial for achieving precise positioning in applications where accuracy is essential. The fine pitch of the helical thread allows for small incremental movements, enabling precise control over the rotation of the worm wheel. This feature is particularly advantageous in applications such as robotics, where accurate positioning and motion control are necessary.
  • Self-Locking Action: The helical thread design of screw gears gives them a self-locking capability. When the worm is not rotating, the friction between the helical thread and the teeth of the worm wheel tends to hold the gear system in place. This self-locking action prevents the worm wheel from backdriving the worm, providing inherent braking or locking functionality. It ensures that the gear mechanism maintains its position without the need for additional braking or locking mechanisms.
  • Efficiency and Lubrication: The sliding action between the screw gear threads and the teeth of the worm wheel introduces more friction compared to other types of gears with rolling motion. This sliding motion affects the efficiency of the gear mechanism, resulting in higher energy losses and heat generation. Proper lubrication with appropriate lubricants is essential to minimize wear, reduce friction, and improve the overall efficiency of the screw gears.

Overall, screw gear threads enable the meshing and transmission of rotational motion and power between the worm and the worm wheel. They facilitate gear reduction, torque multiplication, precise positioning, and self-locking action. Understanding the design and functions of screw gear threads is crucial for utilizing screw gears effectively in various applications.

China Professional Custom 304 Stainless Steel Gear Screw CNC Machining worm and wheel gearChina Professional Custom 304 Stainless Steel Gear Screw CNC Machining worm and wheel gear
editor by CX 2024-01-11