China best Japan Rigging Screw JIS-F3430-1977

Product Description

 

    Table1      
No.      Component                    Material  
1 Screw rod                  JIS G 4051-S 25C  
2  Fork        
3 Dead eye       JIS G 5501-FC15  
4 Joining HangZhou and hexagon nut       JIS G 4051-S 25C  
5 Check plate       Steel plate  
6 Fixing bolt       Steel bar  
7 Washer       Steel plate  
          (mm)
Size Wire Rope Use Length W.L.L. Self-
Diameter Max Min (kN) Weight(kg)
14 14 700 488 20.6  6.0 
16 16 770 538 25.5  8.6 
18 18 836 590 32.4  11.6 
22 20 or 22.4 908 638 50.0  14.8 
24 24 968 688 57.9  19.4 
25 25 1004 720 67.7  23.9 
30 28 or 30 1074 770 90.2  30.3 
32 32 1124 810 103.0  36.3 
34 34 1176 850 112.8  43.3 
36 36 1238 900 127.5  51.3 
38 38 1284 938 142.2  60.1 
40 40 1344 988 161.8  70.9 
42 42.5 1444 1068 181.4  93.8 
45 45 1482 1100 206.0  105.2 
48 47.5 1536 1140 226.0  117.2 
50 50 1556 1160 250.1  124.3 

HangZhou Xinquanxi Metal Products Co., Ltd. was established in 2001 (formerly known as HangZhou Quanxi Rigging Hardware  Co., LTD.), located in Wangyanzhuang North Village, Lancun Town, Xihu (West Lake) Dis. District, HangZhou city.  In the early stage of establishment, the company mainly engaged in the production and sales of JIS turnbuckles and forging shackle, and successfully entered the Japanese market with high quality products and established the foreign trade Department.  With the continuous development of the company’s business, in September 2019, it merged with HangZhou Ruihongjie Industry and Trade Co., LTD., and changed the company name to HangZhou Xinquanxi Metal Products Co., LTD.  At the same time, the business scope has gradually expanded, the main production and operation of  rigging, wire rope connection parts, precision machining, Pole line hardware, Marine and automotive connection parts, all kinds of forging, sheet metal, stamping, casting  and other products.  

Main products:  
Rigging: turnbuckle (Jis open body, 1480 forging turnbuckle, US type  forging turnbuckle,Rigging Screw),  forging shackle, eye bolt and eye nut, forged hook,  various sets of rings, D ring, master ring, snap hook,Pulley Block, etc.;  
Corner code, expansion bolt, seismic support, guardrail and other building materials.  
Casting pipes, manhole covers, road piles, container buttons, anchors, all kinds of breeding equipment and other casting products. 
FAQ
1.Are you a factory or a trading company?   
      We have our own foundry and forging factory. The forging plant has 4 production lines and a history of more than 20 years;Foundry has a history of more than 30 years.
2.How do you control your quality?   
      1: Control during r&d at the beginning of production
      2:Production process control
      3:Dimensional control
      4:Tensile tests
      5:Quality inspection before delivery
3.Can we have our product markings on it?
      Yes, we can add product markings according to your requirements.
4.How about packing?
      Woven bag,carton,plywood pallet or by customer requirements.

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Material: 25#,Q235
Type: Jaw & Jaw Turnbuckle
Usage: Industrial, Household
Samples:
US$ 5.5/Piece
1 Piece(Min.Order)

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Customization:
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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

worm screw

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:

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

worm screw

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.

worm screw

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.

China best Japan Rigging Screw JIS-F3430-1977  China best Japan Rigging Screw JIS-F3430-1977
editor by CX 2024-03-10