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 hydraulic and pneumatic systems?
Yes, flexible couplings can be used in both hydraulic and pneumatic systems to connect various components and transmit power or motion. However, the selection of flexible couplings for these systems depends on specific application requirements and operating conditions.
Hydraulic Systems:
- Compensating Misalignment: In hydraulic systems, flexible couplings are used to compensate for misalignment between the driving and driven components, such as pumps, motors, and actuators. Misalignment can occur due to variations in the mounting or movement of components. The flexibility of the coupling allows it to accommodate misalignment while transmitting torque efficiently.
- Vibration Damping: Hydraulic systems can generate vibrations during operation, which can affect the performance and lifespan of connected components. Flexible couplings with vibration-damping properties help reduce the transmission of vibrations, providing smoother operation and minimizing wear on components.
- Reducing Shock Loads: Flexible couplings absorb and dampen shock loads that may occur in hydraulic systems during rapid starts, stops, or pressure fluctuations. By absorbing these shock loads, the coupling protects connected components from potential damage.
- Corrosion Resistance: Hydraulic systems may operate in environments with exposure to hydraulic fluids, which can be corrosive. Flexible couplings made of materials resistant to corrosion, such as stainless steel or specific polymers, are suitable for such applications.
- High Torque Transmission: Hydraulic systems often require high torque transmission between the power source and the driven components. Flexible couplings can handle high torque levels while accommodating angular and axial misalignments.
Pneumatic Systems:
- Compensation for Misalignment: In pneumatic systems, flexible couplings provide compensation for misalignment between components, such as pneumatic cylinders, valves, and rotary actuators. The ability to accommodate misalignment ensures smooth operation and reduces the risk of mechanical stress on the system.
- Minimal Lubrication: Some flexible couplings designed for pneumatic systems require little to no lubrication, making them suitable for applications where oil or grease contamination is undesirable.
- Low Inertia: Pneumatic systems often require components with low inertia to achieve rapid response times. Flexible couplings with low mass and low inertia help maintain the system’s responsiveness and efficiency.
- High Torque Transmission: Pneumatic systems can demand high torque transmission between components, such as in pneumatic rotary actuators. Flexible couplings can transmit torque effectively while compensating for potential misalignments.
- Corrosion Resistance: Pneumatic systems operating in harsh environments may be exposed to moisture or chemicals. Flexible couplings made of corrosion-resistant materials are ideal for such conditions.
Overall, flexible couplings are versatile components that can be used in a wide range of hydraulic and pneumatic applications. When selecting a flexible coupling for a specific system, it’s essential to consider factors such as misalignment compensation, vibration damping, shock absorption, corrosion resistance, torque transmission capability, and compatibility with the system’s operating conditions.

Can flexible couplings be used in marine and automotive applications?
Yes, flexible couplings are commonly used in both marine and automotive applications. They offer various advantages that make them suitable for these industries:
- Misalignment Compensation: In marine and automotive systems, there can be misalignments due to factors such as hull flexing in marine vessels or engine movements in vehicles. Flexible couplings can accommodate these misalignments, ensuring efficient power transmission between the engine and the propeller or wheels.
- Vibration Damping: Both marine and automotive environments experience vibrations from engines, propellers, or road conditions. Flexible couplings help dampen these vibrations, reducing wear on components and enhancing the comfort of passengers or crew members.
- Shock Load Absorption: Marine vessels and vehicles can encounter shock loads during operation, especially in rough sea conditions or uneven terrains. Flexible couplings can absorb and dissipate the impact of these shock loads, protecting the drivetrain and transmission components.
- Compact Design: Space is often limited in marine vessels and automotive systems. Flexible couplings come in various compact designs, making them suitable for applications with restricted installation space.
- Corrosion Resistance: Marine environments expose components to corrosive seawater, while automotive systems may encounter exposure to road salt and other corrosive substances. Flexible couplings made from corrosion-resistant materials, such as stainless steel or non-metallic compounds, are ideal for these applications.
- Easy Maintenance: Flexible couplings with self-lubricating features or low maintenance requirements are well-suited for marine and automotive applications, where regular maintenance can be challenging.
- High Torque Capacity: Automotive systems, especially in heavy-duty vehicles, require couplings that can handle high torque levels. Flexible couplings designed for automotive use offer high torque capacity and reliability.
Overall, the adaptability, vibration damping, and misalignment compensation provided by flexible couplings make them suitable for various marine and automotive applications. Whether used in boats, yachts, ships, cars, trucks, or other vehicles, flexible couplings contribute to smooth and reliable power transmission, leading to improved performance and reduced maintenance requirements.

Can flexible couplings handle misalignment between shafts?
Yes, flexible couplings are specifically designed to handle misalignment between shafts in rotating machinery and mechanical systems. Misalignment can occur due to various factors, including installation errors, thermal expansion, manufacturing tolerances, or shaft deflection during operation.
Flexible couplings offer the ability to compensate for different types of misalignment, including:
- Angular Misalignment: When the shafts are not collinear and have an angular offset, flexible couplings can accommodate this misalignment by flexing or twisting, allowing the two shafts to remain connected while transmitting torque smoothly.
- Parallel Misalignment: Parallel misalignment occurs when the two shafts are not perfectly aligned along their axes. Flexible couplings can adjust to this misalignment, ensuring that the shafts remain connected and capable of transmitting power efficiently.
- Axial Misalignment: Axial misalignment, also known as end float or axial displacement, refers to the relative axial movement of the two shafts. Some flexible coupling designs can accommodate axial misalignment, allowing for slight axial movements without disengaging the coupling.
The ability of flexible couplings to handle misalignment is essential in preventing premature wear and failure of the connected equipment. By compensating for misalignment, flexible couplings reduce the stress on the shafts, bearings, and seals, extending the service life of these components and improving overall system reliability.
It is crucial to select the appropriate type of flexible coupling based on the specific misalignment requirements of the application. Different coupling designs offer varying degrees of misalignment compensation, and the choice depends on factors such as the magnitude and type of misalignment, the torque requirements, and the operating environment.
In summary, flexible couplings play a vital role in handling misalignment between shafts, ensuring efficient power transmission and protecting mechanical systems from the adverse effects of misalignment. Their ability to accommodate misalignment makes them indispensable components in various industrial, automotive, aerospace, and marine applications.


editor by CX 2023-11-30