Product Description
XL Types High-Pressure Rubber Flexible Spider Jaw Coupling
XL Type Flexible Spider Jaw Coupling comprises a convex claw block that can be avoided due to external constraints, internal deformation, and centrifugal impact deformation; in concave-convex claw, the pressure on the surface of the involute tooth is very small, even under overload, the tooth will not wear or deformation.
Flexible jaw couplings are used in power transmission of industrial equipment such as metallurgy, mining, lifting, transportation, petroleum, chemical industry, shipbuilding, textile, light industry, agricultural machinery, and industrial equipment such as pumps, fans, compressors, machine tools, gearboxes, mixers, printing machines, and conveyors.
Advantage:
Run smoothly;
Easy to install;
Compensate displacement (axial, radial, angular);
XL Star Type Flexible Coupling Main Dimension:
| Type | Nominal torque Tn/N·m |
Shaft hole diameter | L | D | D1 | B1 | S | |
| d1,d2 | Y | J1,Z1 | ||||||
| XL1 | 20 | 6,7 | 18 | – | 40 | 32 | 12 | 2 |
| 8,9 | 22 | – | ||||||
| 10,11 | 25 | 22 | ||||||
| 12,14 | 32 | 27 | ||||||
| 16,18,19 | 42 | 30 | ||||||
| XL2 | 71 | 8,9 | 22 | – | 55 | 40 | 14 | |
| 10,11 | 25 | 22 | ||||||
| 12,14 | 32 | 27 | ||||||
| 16,18,19 | 42 | 30 | ||||||
| 20,22,24 | 52 | 38 | ||||||
| XL3 | 200 | 10,11 | 25 | 22 | 65 | 48 | 15 | 2.5 |
| 12,14 | 32 | 27 | ||||||
| 16,18,19 | 42 | 30 | ||||||
| 20,22,24 | 52 | 38 | ||||||
| 25,28 | 62 | 44 | ||||||
| XL4 | 400 | 12,14 | 32 | 27 | 80 | 66 | 18 | 3 |
| 16,18,19 | 42 | 30 | ||||||
| 20,22,24 | 52 | 38 | ||||||
| 25,28 | 62 | 44 | ||||||
| 30,32,35,38 | 82 | 60 | ||||||
| XL5 | 560 | 14 | 32 | 27 | 95 | 75 | 20 | |
| 16,18,19 | 42 | 30 | ||||||
| 20,22,24 | 52 | 38 | ||||||
| 25,28 | 62 | 44 | ||||||
| 30,32,35,38 | 82 | 60 | ||||||
| 40,42 | 112 | 84 | ||||||
| XL6 | 630 | 16,18,19 | 42 | 30 | 105 | 85 | 21 | 3.5 |
| 20,22,24 | 52 | 38 | ||||||
| 25,28 | 62 | 44 | ||||||
| 30,32,35,38 | 82 | 60 | ||||||
| 40,42,45,48 | 112 | 84 | ||||||
| XL7 | 800 | 20,22,24 | 52 | 38 | 120 | 98 | 22 | 4 |
| 25,28 | 62 | 44 | ||||||
| 30,32,35,38 | 82 | 60 | ||||||
| 40,42,45,48,50,55 | 112 | 84 | ||||||
| XL8 | 900 | 22,24 | 52 | 38 | 135 | 115 | 26 | 4.5 |
| 25,28 | 62 | 44 | ||||||
| 30,32,35,38 | 82 | 60 | ||||||
| 40,42,45,48,50,55 | 112 | 84 | ||||||
| 60,63,65 | 142 | 107 | ||||||
| XL9 | 2000 | 30,32,35,38 | 82 | 60 | 160 | 135 | 30 | 5 |
| 40,42,45,48,50,55,56 | 112 | 84 | ||||||
| 60,63,65,70,71,75 | 142 | 107 | ||||||
| XL10 | 5000 | 40,42,45,48,50,55,56 | 112 | 84 | 200 | 160 | 34 | 5.5 |
| 60,63,65,70,71,75 | 142 | 107 | ||||||
| 80,85,90 | 172 | 132 | ||||||
| XL11 | 7100 | 50,55,56 | 112 | 84 | 225 | 180 | 38 | 6 |
| 60,63,65,70,71,75 | 142 | 107 | ||||||
| 80,85,90,95 | 172 | 132 | ||||||
| 100 | 212 | 167 | ||||||
| XL12 | 8000 | 60,63,65,70,71,75 | 142 | 107 | 255 | 200 | 42 | 6.5 |
| 80,85,90,95 | 172 | 132 | ||||||
| 100,110 | 212 | 167 | ||||||
| XL13 | 10000 | 60,63,65,70,71,75 | 142 | 107 | 290 | 230 | 46 | 7 |
| 80,85,90,95 | 172 | 132 | ||||||
| 100,110,120,125 | 212 | 167 | ||||||
| XL14 | 14000 | 60,63,65,70,71,75 | 142 | 107 | 320 | 255 | 50 | 7.5 |
| 80,85,90,95 | 172 | 132 | ||||||
| 100,110,120,125 | 212 | 167 | ||||||
| 130,140 | 252 | 202 | ||||||
| XL15 | 20000 | 80,85,90,95 | 172 | 132 | 370 | 290 | 57 | 9 |
| 100,110,120,125 | 212 | 167 | ||||||
| 130,140,150 | 252 | 202 | ||||||
| 160 | 302 | 242 | ||||||
| XL16 | 25000 | 85,90,95 | 172 | 132 | 420 | 325 | 64 | 10.5 |
| 100,110,120,125 | 212 | 167 | ||||||
| 130,140,150 | 252 | 202 | ||||||
| 160,170,180 | 302 | 242 |
Product Show:
♦Other Products List
| Transmission Machinery Parts Name |
Model |
| Universal Coupling | WS, WSD, WSP |
| Cardan Shaft | SWC, SWP, SWZ |
| Tooth Coupling | CL, CLZ, GCLD, GIICL, GICL, NGCL, GGCL, GCLK |
| Disc Coupling | JMI, JMIJ, JMII, JMIIJ |
| High Flexible Coupling | LM |
| Chain Coupling | GL |
| Jaw Coupling | LT |
| Grid Coupling | JS |
♦Our Company
Our company supplies different kinds of products. High quality and reasonable price. We stick to the principle of “quality first, service first, continuous improvement and innovation to meet the customers” for the management and “zero defect, zero complaints” as the quality objective. To perfect our service, we provide products of good quality at a reasonable price.
Welcome to customize products from our factory and please provide your design drawings or contact us if you need other requirements.
♦Our Services
1. Design Services
Our design team has experience in coupling relating to product design and development. If you have any needs for your new product or wish to make further improvements, we are here to offer our support.
2. Product Services
raw materials → Cutting → Forging →Rough machining →Shot blasting →Heat treatment →Testing →Fashioning →Cleaning→ Assembly→Packing→Shipping
3. Samples Procedure
We could develop the sample according to your requirement and amend the sample constantly to meet your need.
4. Research & Development
We usually research the new needs of the market and develop new models when there are new cars in the market.
5. Quality Control
Every step should be a special test by Professional Staff according to the standard of ISO9001 and TS16949.
♦FAQ
Q 1: Are you a trading company or a manufacturer?
A: We are a professional manufacturer specializing in manufacturing
various series of couplings.
Q 2:Can you do OEM?
Yes, we can. We can do OEM & ODM for all the customers with customized artwork in PDF or AI format.
Q 3:How long is your delivery time?
Generally, it is 20-30 days if the goods are not in stock. It is according to quantity.
Q 4: Do you provide samples? Is it free or extra?
Yes, we could offer the sample but not for free. Actually, we have an excellent price principle, when you make the bulk order then the cost of the sample will be deducted.
Q 5: How extended is your warranty?
A: Our Warranty is 12 months under normal circumstances.
Q 6: What is the MOQ?
A: Usually our MOQ is 1pcs.
Q 7: Do you have inspection procedures for coupling?
A:100% self-inspection before packing.
Q 8: Can I have a visit to your factory before the order?
A: Sure, welcome to visit our factory.
Q 9: What’s your payment?
A:1) T/T.
♦Contact Us
Web: huadingcoupling
Add: No.11 HangZhou Road,Chengnan park,HangZhou City,ZheJiang Province,China

Can flexible couplings be used in food processing and pharmaceutical industries?
Yes, flexible couplings can be used in both the food processing and pharmaceutical industries under certain conditions. These industries have stringent requirements for equipment used in their processes, including hygienic design, cleanliness, and resistance to contamination. Here’s how flexible couplings can be used in these industries:
- Hygienic Design: In food processing and pharmaceutical applications, flexible couplings with hygienic designs are essential to prevent the accumulation of food particles, dust, or other contaminants. Stainless steel or FDA-approved materials are commonly used to ensure compliance with hygiene standards and ease of cleaning.
- Cleanability: The equipment used in food processing and pharmaceutical industries must be easily cleanable to maintain product purity. Flexible couplings with smooth surfaces and no crevices or pockets that can trap particles are preferred.
- Chemical Resistance: Some food processing and pharmaceutical applications involve the use of cleaning agents or chemicals. Flexible couplings must be resistant to these chemicals to prevent degradation and ensure long-term reliability.
- Corrosion Resistance: In food processing and pharmaceutical environments, equipment is often exposed to washdowns and sanitizing solutions. Flexible couplings made of corrosion-resistant materials can withstand these conditions and maintain their performance over time.
- Compliance with Standards: The food processing and pharmaceutical industries are subject to strict regulations and standards. Flexible couplings used in these industries should comply with relevant industry standards, such as FDA, EHEDG, or NSF standards.
- Non-Toxic Materials: Flexible couplings used in direct contact with food or pharmaceutical products must be made of non-toxic materials that will not contaminate the process.
- Resistant to Temperature Extremes: Some food and pharmaceutical processes involve extreme temperatures. Flexible couplings must be capable of withstanding high and low temperatures without compromising their integrity.
When selecting flexible couplings for food processing and pharmaceutical applications, it is essential to work closely with manufacturers and suppliers who understand the industry’s unique requirements. Customized solutions may be necessary to ensure that the couplings meet the specific needs of the application and comply with industry standards.
Summary: Flexible couplings can be used in food processing and pharmaceutical industries when they meet the necessary hygiene, cleanability, chemical resistance, corrosion resistance, compliance with standards, and temperature resistance requirements. Proper selection and application of flexible couplings can contribute to the efficiency and reliability of equipment in these critical industries.

How does a flexible coupling contribute to reducing maintenance and downtime costs?
A flexible coupling plays a significant role in reducing maintenance and downtime costs in mechanical systems. Here are the ways in which it achieves this:
- Misalignment Compensation: Flexible couplings can accommodate both angular and parallel misalignments between shafts. By absorbing and compensating for misalignment, they reduce wear and stress on connected equipment, minimizing the risk of premature failures and the need for frequent adjustments.
- Vibration Damping: Flexible couplings dampen vibrations and shock loads in the system. This not only protects the connected components from excessive wear but also reduces the likelihood of damage to bearings, seals, and other critical parts, which would otherwise require frequent replacement or repair.
- Protection Against Shock Loads: In applications where sudden starts, stops, or load fluctuations occur, flexible couplings can absorb and dissipate some of the shock loads, preventing potential damage to machinery. This feature extends the equipment’s lifespan and minimizes unplanned downtime.
- Longevity of Components: By reducing stress and wear on connected components, flexible couplings contribute to their longevity. Components such as bearings, shafts, and gears are subject to less strain and fatigue, resulting in extended service intervals and reduced replacement costs.
- Easy Installation and Maintenance: Flexible couplings are relatively easy to install and require minimal maintenance. Routine inspections to check for wear or damage can be done without significant downtime, allowing proactive maintenance to address any issues before they escalate.
- Adaptability to Operating Conditions: Flexible couplings can handle variations in operating conditions, such as temperature fluctuations and different types of loads. Their ability to accommodate changing conditions reduces the need for frequent adjustments or component replacements due to environmental factors.
- Reduced Downtime during Maintenance: In the event of maintenance or equipment repairs, flexible couplings can be quickly disconnected and reconnected, minimizing the downtime required for servicing. This quick replacement reduces production losses and improves overall system efficiency.
Overall, the use of flexible couplings in mechanical systems promotes reliability, extends the life of equipment, and helps prevent costly breakdowns. By reducing maintenance and downtime costs, flexible couplings contribute to improved productivity and profitability for industrial operations.

Can flexible couplings be used for both motor-to-shaft and shaft-to-shaft connections?
Yes, flexible couplings can be used for both motor-to-shaft and shaft-to-shaft connections in various applications. The versatility of flexible couplings allows them to adapt to different types of connections and meet the specific requirements of the system.
Motor-to-Shaft Connections:
When connecting a motor to a shaft, a flexible coupling serves as an intermediary component that joins the motor shaft and the driven shaft. Flexible couplings are commonly used in motor-driven systems to accommodate misalignment between the motor and the driven load. In motor applications, flexible couplings help reduce stress and wear on the motor bearings, thus extending the motor’s life and enhancing overall system reliability. They also act as vibration dampeners, minimizing vibrations transmitted from the motor to the driven shaft, and subsequently to connected equipment, ensuring smoother operation.
Shaft-to-Shaft Connections:
In many mechanical systems, such as those in the manufacturing, automation, and power transmission industries, shaft-to-shaft connections are required. A flexible coupling can bridge the gap between two shafts and transmit torque while accommodating misalignment. This type of coupling is commonly used to connect shafts that are not perfectly aligned due to factors like manufacturing tolerances, thermal expansion, or foundation settling. By allowing for misalignment, the flexible coupling protects the connected components from excessive stresses and ensures efficient power transmission.
Versatility and Advantages:
The ability of flexible couplings to handle both motor-to-shaft and shaft-to-shaft connections makes them versatile solutions for a wide range of industrial applications. Some of the advantages of using flexible couplings in these connections include:
- Minimizing stress and wear on connected components, such as bearings and seals.
- Compensating for misalignment, ensuring smooth power transmission.
- Damping vibrations and shock loads, reducing the risk of mechanical failures.
- Protecting equipment from excessive forces, enhancing system reliability.
- Simplifying installation and alignment procedures, reducing downtime.
- Improving overall system performance and operational efficiency.
Applications:
Flexible couplings find applications in a wide range of industries, including manufacturing, material handling, automotive, aerospace, robotics, and more. Whether connecting a motor to a shaft or joining two shafts directly, flexible couplings play a crucial role in enhancing the reliability and efficiency of rotating machinery and mechanical systems.
In conclusion, flexible couplings can effectively serve as connectors for both motor-to-shaft and shaft-to-shaft connections, providing essential misalignment compensation and protection for connected equipment in various industrial applications.


editor by CX 2023-08-21