Tag Archives: flexible coupling

China OEM CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling

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

 

rubber coupling

Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

  • Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
  • Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

rubber coupling

Industry Standards and Guidelines for Rubber Couplings

There are no specific industry standards or guidelines that exclusively govern the design and application of rubber couplings. However, various general standards and engineering practices apply to flexible couplings, including rubber couplings:

  • ISO 14691: This standard provides guidelines for the installation, use, and maintenance of industrial flexible couplings, which include rubber couplings.
  • AGMA 9005: The American Gear Manufacturers Association (AGMA) standard provides information on selecting lubricants and lubrication methods for flexible couplings, ensuring proper performance and longevity.
  • API 671: This API standard specifies the requirements for special-purpose couplings used in petroleum, chemical, and gas industry services, which can include rubber couplings for specific applications.
  • Manufacturer Recommendations: Many rubber coupling manufacturers provide guidelines, specifications, and installation instructions for their products, helping users select the right coupling and use it correctly.

Since rubber couplings fall under the category of flexible couplings, engineers and designers can follow these broader standards and best practices while considering the specific characteristics and performance requirements of rubber couplings for their applications.

rubber coupling

Transmitting Torque and Damping Vibrations with a Rubber Coupling

A rubber coupling utilizes its flexible rubber element to achieve both torque transmission and vibration damping:

1. Torque Transmission: The rubber element connects two hubs, which are attached to the input and output shafts. As the input shaft rotates, it causes the rubber element to deform due to the applied torque. This deformation creates a shearing action within the rubber material, transmitting torque from the input to the output shaft.

2. Vibration Damping: The flexible rubber element of the coupling acts as a vibration isolator. When the coupling experiences external vibrations or shocks, the rubber absorbs the energy and dampens the vibrations before they reach the output shaft. The rubber’s elasticity and damping properties help mitigate vibrations and reduce the impact on the connected machinery, enhancing overall system performance and longevity.

This combination of torque transmission and vibration damping makes rubber couplings suitable for applications where misalignment compensation, shock absorption, and dampening of vibrations are essential, such as in pumps, compressors, HVAC systems, and various industrial machinery.

China OEM CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling China OEM CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling
editor by CX 2023-10-16

China high quality Excavator Spare Parts CF-a-004 Coupling CF-a-004-S0 Flexible Coupling 4A Rubber Coupling

Product Description

Excavator Spare Parts CF-A-004 coupling CF-A-004-S0 Flexible Coupling 4A Rubber Coupling

COUPLING
NO. LB NO. Model OEM NO. Name NO. LB NO. Model OEM NO. Name NO. LB NO. Model OEM NO. Name
1 FG-Q2001   25H  162*92 COUPLING 22 FG-Q2571 16A 155*76 COUPLING 43 FG-Q2043 S32S 235*97 COUPLING
2 FG-Q2002 MS110 DH55 30H 195*105 COUPLING  23 FG-Q2571 16AS 155*76 COUPLING 44 KLB-Q2044 S25S 163*58 COUPLING
3 FG-Q2003 30H  195*105 COUPLING ASSY 24 FG-Q2571 22A 153*76 COUPLING 45 KLB-Q2045 E200B 14T     COUPLING
4 FG-Q2004 EX200-2 40H 170*90 COUPLING 25 FG-Q2571 25A 185*102 COUPLING 46 KLB-Q2046 50AC 14T  205*40 COUPLING
5 FG-Q2005 40H   170*90 COUPLING ASSY 26 FG-Q2026 25AS 185*102 COUPLING 47 KLB-Q2047 SH280   COUPLING
6 FG-Q2006 45H  183*92 COUPLING 27 FG-Q2571 28A 178*93 COUPLING 48 KLB-Q2048 E200B  12T   COUPLING
7 FG-Q2007 45H 183*92 COUPLING ASSY 28 FG-Q2571 28AS 178*93 COUPLING 49 KLB-Q2049 50AM  16T 205*45 COUPLING
8 FG-Q2008 90H  203*107 COUPLING 29 FG-Q2571 30A 215*118 COUPLING 50 KLB-Q2050 SH200 14T  205*40 COUPLING
9 FG-Q2009 90H  203*107 COUPLING ASSY 30 FG-Q2030 30AS 215*118 COUPLING 51 KLB-Q2051 E330C 350*145 COUPLING
10 FG-Q2571 50H  195*110 COUPLING 31 FG-Q2031 50A 205*108 COUPLING 52 KLB-Q2052 E330C   COUPLING
11 FG-Q2011 50H   195*110 COUPLING ASSY 32 FG-Q2032 50AS  205*108 COUPLING 53 KLB-Q2053 168mm*48m 26T 3H   COUPLING
12 FG-Q2012 110H  215*110 COUPLING 33 FG-Q2033 90A 272*140 COUPLING 54 KLB-Q2054 242mm*72mm 50T 8H   COUPLING
13 FG-Q2013 110H 215*110 COUPLING ASSY 34 FG-Q2034 90AS 272*140 COUPLING 55 KLB-Q2055 295mm*161mm 48T 12H   COUPLING
14 FG-Q2014 140H  245*125 COUPLING 35 FG-Q2035 140A 262*132 COUPLING 56 KLB-Q2056 352mm*161mm 48T 8H   COUPLING
15 FG-Q2015 140H   245*125 COUPLING ASSY 36 FG-Q2036 140AS 262*132 COUPLING 57 KLB-Q2057 352mm*161mm 46T 8H   COUPLING
16 FG-Q2016 160H  255*134 COUPLING 37 FG-Q2037 E300B  16T  278*54 COUPLING 58 KLB-Q2058 318mm*72mm 50T 8H   COUPLING
17 FG-Q2017 160H  255*134 COUPLING ASSY 38 FG-Q2038 E450 16T 360*52 COUPLING 59 KLB-Q2059 315mm 42T   COUPLING
18 FG-Q2018 4A 104*53 COUPLING 39 FG-Q2039 SH430   12T  205*35 COUPLING 60 KLB-Q2060 268mm*100mm 42T 6H   COUPLING
19 FG-Q2019 4AS 104*53 COUPLING 40 FG-Q2040 SH200 14T  205*40 COUPLING 61 KLB-Q2061 167mm*90mm 47T 3H   COUPLING
20 FG-Q2571 8A 130*70 COUPLING 41 FG-Q2041 50ASM  20T  205*40 COUPLING 62 KLB-Q2062 182mm 42T    COUPLING
21 FG-Q2571 8AS 130*70 COUPLING 42 FG-Q2042 SH160(SH60)  15T 173*22 COUPLING 63 KLB-Q2063 220mm 46T    COUPLING

 

Ntly Asked Questions:

Q1. What are your packaging conditions?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have a legally registered patent, we can package the goods in your branded box CHINAMFG receipt of your authorization letter.

Q2: What are your payment terms?
A: T/T 30% as deposit and 70% before delivery. We will show you photos of the products and packaging before you pay the balance.

Q3. What are your delivery terms?
A : FOB price

Q4. What is your delivery time?
A: Generally speaking, it takes 15 to 30 days after receiving the advance payment. The exact delivery time depends on the item and quantity of your order. Q5: How do you

keep our business in a long term good relationship?
A: 1. We maintain good quality and competitive prices to ensure our customers benefit; 

     2.We are sincere in doing business and making friends

Our advantages:
1.Professional: we have about 10 years of experience in the field of mechanical parts and accessories .
2. Quality assurance: we cooperate with major OEM factories in China. We will check the goods strictly before sending to customers.
3. Competitive price: We offer wholesale price for OEM; high quality and after-sale parts.
4. All goods are sufficient to meet your one-stop purchase.
5. One-stop service: you can contact us at any time if you have any questions after you receive the goods. One sale will complete the whole case for the customer.
6. Cheapest shipping cost: We have cooperated with the best freight forwarder for many years, we can quote the cheapest way of shipping for you.

rubber coupling

Suitability of Rubber Couplings for High-Speed Rotation and Varying Loads

Rubber couplings are generally well-suited for applications involving high-speed rotation and varying loads, thanks to their unique properties and design features.

High-Speed Rotation: Rubber couplings can effectively handle high-speed rotation due to their inherent flexibility and damping characteristics. The elastomeric material used in rubber couplings helps absorb and dissipate vibrations that can occur at high speeds, contributing to smoother operation and reduced wear on connected machinery components.

Varying Loads: Rubber couplings are capable of accommodating varying loads due to their ability to deform under stress. The flexibility of rubber allows it to absorb shocks and impacts caused by changes in load, preventing damage to connected equipment. This feature is particularly beneficial in applications where sudden changes in load can occur, such as in industrial machinery.

However, it’s important to consider the specific requirements of the application. While rubber couplings provide excellent vibration isolation and misalignment compensation, they may not offer the same level of torsional rigidity as some other coupling types. In cases where precise torque transmission is crucial, and minimal torsional deflection is required, other coupling options might be more suitable.

Overall, rubber couplings can provide reliable performance in applications involving high-speed rotation and varying loads, especially when the benefits of vibration damping and misalignment compensation are essential.

rubber coupling

Common Rubber Materials Used in Manufacturing Rubber Couplings

Various rubber materials are used in the manufacturing of rubber couplings, each chosen based on its specific properties and the intended application:

  • Neoprene: Known for its oil and chemical resistance, neoprene rubber is used in couplings that require durability and resistance to harsh environments.
  • Nitrile: Nitrile rubber offers excellent oil and fuel resistance, making it suitable for applications in machinery that involve contact with lubricants.
  • Natural Rubber: Natural rubber provides good elasticity and flexibility, making it suitable for couplings requiring high levels of shock and vibration absorption.
  • EPDM: Ethylene Propylene Diene Monomer (EPDM) rubber offers good resistance to weather, ozone, and aging, making it suitable for outdoor or high-temperature applications.
  • Polyurethane: Polyurethane rubber offers high abrasion resistance and can handle higher load capacities, making it suitable for heavy-duty applications.

The choice of rubber material depends on factors such as the operating environment, chemical exposure, temperature range, flexibility requirements, and load conditions. Engineers select the appropriate rubber material to ensure the coupling’s performance and longevity in specific applications.

rubber coupling

Types of Rubber Couplings Designed for Specific Uses

There are several types of rubber couplings, each designed with specific characteristics to suit various applications:

  • Flexible Jaw Couplings: These couplings consist of two hubs connected by a flexible rubber element. They are commonly used in applications where misalignment, vibrations, and shocks need to be dampened, such as in pumps, fans, and compressors.
  • Oldham Couplings: Oldham couplings use a rubber disk as the intermediate element between two hubs. They provide compensation for misalignment while maintaining a constant velocity between input and output shafts, often used in printing, packaging, and CNC machinery.
  • Tyre Couplings: These couplings have a high degree of torsional flexibility and are suitable for applications with substantial misalignment and shock absorption requirements, like in heavy-duty machinery and construction equipment.
  • Pin and Bush Couplings: These couplings use rubber bushes to provide vibration isolation and accommodate misalignment. They are used in various industrial applications, including conveyors, mixers, and crushers.
  • Diaphragm Couplings: Diaphragm couplings use a flexible rubber diaphragm to transmit torque and compensate for misalignment. They are commonly found in precision equipment like servo motors and robotics.

Each type of rubber coupling is designed to address specific needs in different applications. The choice of coupling depends on factors such as the degree of misalignment, torque requirements, shock absorption, and the level of precision needed.

China high quality Excavator Spare Parts CF-a-004 Coupling CF-a-004-S0 Flexible Coupling 4A Rubber Coupling China high quality Excavator Spare Parts CF-a-004 Coupling CF-a-004-S0 Flexible Coupling 4A Rubber Coupling
editor by CX 2023-10-11

China Best Sales Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange

Product Description

Product Description:

Single ball rubber joint is a kind of pipeline joint which is high-flexibility,high-gas tightness,resistance to medium and climate. Limit displacement and Prevent pull off  rubber joint is usually composed of inner rubber layer,fabric reinforcement layer(reinforcement layer have multilayer frictioning nylon cord fabric),middle rubber layer,outer rubber layer,top reinforce metal ring or bead ring. After high pressure, high temperature vulcanization and become. It can reduce the vibration and noise of pipeline.It can also compensate for the Thermal expansion and  cold contraction caused by temperature changed.
 

Product features:

1.Small volume, light weight, good elasticity, easy installation and maintenance.
2.After installation, it can assimilate horizontal, axial and angular displacement caused by pipeline vibration.
3.After installation, it can reduce the noise which produced by the pipeline and water pump etc.
4.Inside has seamless high pressure rubber joint more effectively prevent rubber joint’s inner walls from being corroded by corrosive medium in high temperature resistance,acid and alkali resistant,oil resistance pipeline and raised working life.

 

Technics  condition

Item/type

KXT-1

KXT-2

KXT-3

work pressure MPa( kgf/cm 2 )

1.0(10 )

1.6 ( 16 )

2.5 ( 25 )

explosion pressure MPa( kgf/cm 2 )

2.0 ( 20 )

3.0 ( 30 )

4.5 ( 45 )

vacuum degree KPa(mm/Hg)

53.3 ( 400 )

86.7 ( 650 )

100 ( 750 )

 Applicable  temperature

-15 ºC~ 115 ºC special can reach -30 ºC ~ 250 ºC

Applicable medium

Air,compressed air,water,sea water,hot water,oil,acid,alkali etc.

 

rubber coupling

Maintaining and Preserving Rubber Coupling Performance

To ensure the longevity and optimal performance of rubber couplings, the following best practices should be observed:

  • Regular Inspections: Perform visual inspections for signs of wear, cracks, or damage.
  • Lubrication: Apply appropriate lubricants to minimize friction and extend rubber life.
  • Alignment: Maintain proper alignment between connected shafts to prevent undue stress on the coupling.
  • Temperature Control: Monitor operating temperatures to prevent overheating that can accelerate rubber degradation.
  • Load Monitoring: Avoid overloading the coupling beyond its rated capacity.
  • Vibration Analysis: Monitor vibration levels and address excessive vibrations promptly.
  • Regular Maintenance: Follow manufacturer’s recommendations for maintenance schedules.
  • Replacement: Replace worn or damaged rubber elements as needed.

By adhering to these practices, the performance and service life of rubber couplings can be effectively preserved.

rubber coupling

Comparison of Rubber Couplings with Other Flexible Coupling Types

Rubber couplings, elastomeric couplings, and disc couplings are all flexible coupling options used in various mechanical systems. Here’s a comparison of rubber couplings with these alternatives:

Rubber Couplings:

  • Transmit torque while damping vibrations through the flexibility of rubber elements.
  • Provide good misalignment compensation and shock absorption.
  • Relatively simple construction and cost-effective.
  • Effective in reducing noise and vibration in applications.
  • Suitable for moderate to high torque applications with moderate misalignment.

Elastomeric Couplings:

  • Similar to rubber couplings, utilize elastomeric materials for flexibility and vibration damping.
  • Offer higher torque capacity and stiffness compared to rubber couplings.
  • Provide better misalignment compensation and torsional stiffness.
  • Wider range of sizes and configurations for various applications.
  • Commonly used in pumps, compressors, and other machinery.

Disc Couplings:

  • Use a series of metal discs to transmit torque and accommodate misalignment.
  • Offer high torsional stiffness and accuracy in torque transmission.
  • Can handle higher speeds and torque compared to rubber or elastomeric couplings.
  • Require precision in manufacturing and installation.
  • Used in applications requiring high precision and minimal backlash.

When choosing between these flexible coupling types, considerations such as torque requirements, misalignment compensation, torsional stiffness, and application-specific needs play a significant role in making the appropriate selection. Each type has its advantages and limitations, making it important to assess the specific requirements of the machinery system.

rubber coupling

Main Advantages of Using Rubber Couplings in Industrial Applications

Rubber couplings offer several key advantages when used in industrial applications. These advantages make them a popular choice for various industries and mechanical systems:

  • Misalignment Tolerance: Rubber couplings can accommodate angular, parallel, and axial misalignments between connected shafts, reducing the need for precise alignment during installation and operation.
  • Vibration Damping: The rubber elements of these couplings absorb and dampen vibrations, minimizing the transmission of vibrations and shocks to other components. This helps prevent damage, wear, and noise generation.
  • Shock Absorption: In systems where sudden shocks or impacts occur, rubber couplings absorb and cushion the impact, protecting connected components from damage.
  • Noise Reduction: The ability to dampen vibrations also contributes to noise reduction, creating quieter operation environments for machinery and equipment.
  • Equipment Protection: Rubber couplings protect sensitive equipment from excessive loads, vibrations, and shocks, enhancing the longevity and reliability of the system.
  • Cost-Effectiveness: Compared to some other coupling types, rubber couplings are generally cost-effective to manufacture, purchase, and maintain.
  • Easy Installation: The flexibility and design of rubber couplings make them relatively easy to install without the need for specialized tools or complex procedures.
  • Minimal Maintenance: Rubber couplings require minimal maintenance and lubrication, reducing downtime and maintenance costs.
  • Wide Range of Applications: Rubber couplings are versatile and find applications in various industries, including automotive, power generation, pumps, conveyors, and more.

In summary, the main advantages of using rubber couplings in industrial applications include their ability to tolerate misalignment, dampen vibrations, absorb shocks, reduce noise, protect equipment, cost-effectiveness, easy installation, low maintenance requirements, and suitability for a wide range of applications.

China Best Sales Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange China Best Sales Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange
editor by CX 2023-10-11

China wholesaler Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange

Product Description

Product Description:

Single ball rubber joint is a kind of pipeline joint which is high-flexibility,high-gas tightness,resistance to medium and climate. Limit displacement and Prevent pull off  rubber joint is usually composed of inner rubber layer,fabric reinforcement layer(reinforcement layer have multilayer frictioning nylon cord fabric),middle rubber layer,outer rubber layer,top reinforce metal ring or bead ring. After high pressure, high temperature vulcanization and become. It can reduce the vibration and noise of pipeline.It can also compensate for the Thermal expansion and  cold contraction caused by temperature changed.
 

Product features:

1.Small volume, light weight, good elasticity, easy installation and maintenance.
2.After installation, it can assimilate horizontal, axial and angular displacement caused by pipeline vibration.
3.After installation, it can reduce the noise which produced by the pipeline and water pump etc.
4.Inside has seamless high pressure rubber joint more effectively prevent rubber joint’s inner walls from being corroded by corrosive medium in high temperature resistance,acid and alkali resistant,oil resistance pipeline and raised working life.

 

Technics  condition

Item/type

KXT-1

KXT-2

KXT-3

work pressure MPa( kgf/cm 2 )

1.0(10 )

1.6 ( 16 )

2.5 ( 25 )

explosion pressure MPa( kgf/cm 2 )

2.0 ( 20 )

3.0 ( 30 )

4.5 ( 45 )

vacuum degree KPa(mm/Hg)

53.3 ( 400 )

86.7 ( 650 )

100 ( 750 )

 Applicable  temperature

-15 ºC~ 115 ºC special can reach -30 ºC ~ 250 ºC

Applicable medium

Air,compressed air,water,sea water,hot water,oil,acid,alkali etc.

 

rubber coupling

Diagnosing and Troubleshooting Rubber Coupling Issues

Diagnosing and troubleshooting problems with rubber couplings in machinery systems involves a systematic approach:

  1. Visual Inspection: Check for signs of wear, cracking, or deformation in the rubber elements.
  2. Vibration Analysis: Monitor vibration levels using sensors to identify excessive vibrations or irregular patterns.
  3. Noise Assessment: Listen for unusual noises during operation, which could indicate misalignment or worn components.
  4. Temperature Check: Monitor the operating temperature of the coupling, as overheating might indicate issues.
  5. Alignment Check: Ensure proper alignment between connected shafts to prevent excessive stress on the coupling.
  6. Torque Measurement: Measure the transmitted torque to identify any discrepancies from the expected values.
  7. Dynamic Testing: Conduct dynamic tests with load variations to identify performance issues.
  8. Comparative Analysis: Compare coupling behavior to baseline performance data.

If any issues are identified, they should be promptly addressed through proper maintenance, realignment, or replacement of damaged components.

rubber coupling

Common Rubber Materials Used in Manufacturing Rubber Couplings

Various rubber materials are used in the manufacturing of rubber couplings, each chosen based on its specific properties and the intended application:

  • Neoprene: Known for its oil and chemical resistance, neoprene rubber is used in couplings that require durability and resistance to harsh environments.
  • Nitrile: Nitrile rubber offers excellent oil and fuel resistance, making it suitable for applications in machinery that involve contact with lubricants.
  • Natural Rubber: Natural rubber provides good elasticity and flexibility, making it suitable for couplings requiring high levels of shock and vibration absorption.
  • EPDM: Ethylene Propylene Diene Monomer (EPDM) rubber offers good resistance to weather, ozone, and aging, making it suitable for outdoor or high-temperature applications.
  • Polyurethane: Polyurethane rubber offers high abrasion resistance and can handle higher load capacities, making it suitable for heavy-duty applications.

The choice of rubber material depends on factors such as the operating environment, chemical exposure, temperature range, flexibility requirements, and load conditions. Engineers select the appropriate rubber material to ensure the coupling’s performance and longevity in specific applications.

rubber coupling

Challenges of Misaligned Rubber Couplings and Their Resolution

Misaligned rubber couplings can lead to several challenges that impact the performance and reliability of machinery. These challenges include:

1. Reduced Efficiency: Misalignment can result in increased friction, causing energy loss and reduced efficiency in power transmission.

2. Increased Wear: Misaligned rubber couplings can cause uneven wear on the coupling’s rubber element and other connected components, leading to premature failure.

3. Vibrations and Noise: Misalignment can cause vibrations and noise, which not only affect the machinery’s operation but also contribute to discomfort for operators.

4. Overloading: Misalignment can lead to uneven loading on the coupling and connected components, potentially causing overloading and damage.

5. Premature Failure: Continuous operation with misaligned couplings can accelerate wear and fatigue, leading to premature failure of the coupling and other components.

To resolve these challenges, proper alignment practices are crucial:

1. Regular Maintenance: Perform routine inspections to identify misalignment and other issues early, allowing for timely adjustments.

2. Precise Installation: Ensure accurate alignment during the installation process to prevent initial misalignment.

3. Laser Alignment: Use laser alignment tools for accurate and reliable alignment between shafts.

4. Corrective Measures: If misalignment is detected, take corrective actions promptly to restore proper alignment.

5. Balancing Loads: Distribute loads evenly across the coupling and connected components to prevent overloading.

By addressing misalignment challenges proactively and adopting appropriate maintenance practices, the longevity and performance of rubber couplings can be significantly improved, minimizing downtime and maintenance costs in industrial applications.

China wholesaler Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange China wholesaler Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange
editor by CX 2023-10-10

China Professional Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange

Product Description

Product Description:

Single ball rubber joint is a kind of pipeline joint which is high-flexibility,high-gas tightness,resistance to medium and climate. Limit displacement and Prevent pull off  rubber joint is usually composed of inner rubber layer,fabric reinforcement layer(reinforcement layer have multilayer frictioning nylon cord fabric),middle rubber layer,outer rubber layer,top reinforce metal ring or bead ring. After high pressure, high temperature vulcanization and become. It can reduce the vibration and noise of pipeline.It can also compensate for the Thermal expansion and  cold contraction caused by temperature changed.
 

Product features:

1.Small volume, light weight, good elasticity, easy installation and maintenance.
2.After installation, it can assimilate horizontal, axial and angular displacement caused by pipeline vibration.
3.After installation, it can reduce the noise which produced by the pipeline and water pump etc.
4.Inside has seamless high pressure rubber joint more effectively prevent rubber joint’s inner walls from being corroded by corrosive medium in high temperature resistance,acid and alkali resistant,oil resistance pipeline and raised working life.

 

Technics  condition

Item/type

KXT-1

KXT-2

KXT-3

work pressure MPa( kgf/cm 2 )

1.0(10 )

1.6 ( 16 )

2.5 ( 25 )

explosion pressure MPa( kgf/cm 2 )

2.0 ( 20 )

3.0 ( 30 )

4.5 ( 45 )

vacuum degree KPa(mm/Hg)

53.3 ( 400 )

86.7 ( 650 )

100 ( 750 )

 Applicable  temperature

-15 ºC~ 115 ºC special can reach -30 ºC ~ 250 ºC

Applicable medium

Air,compressed air,water,sea water,hot water,oil,acid,alkali etc.

 

rubber coupling

Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

  • Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
  • Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

rubber coupling

Industries and Applications of Rubber Couplings

Rubber couplings are widely utilized in various industries and applications where their unique characteristics are beneficial. Some examples include:

  • Automotive: Rubber couplings are commonly used in automotive drivetrains to connect the engine to the transmission and other components. They help absorb engine vibrations and shocks, enhancing passenger comfort.
  • Pumping Systems: Rubber couplings find applications in pumps and fluid handling systems, where they dampen vibrations and reduce wear on connected equipment.
  • Material Handling: Conveyor systems and material handling equipment use rubber couplings to minimize vibrations and shock loads during the movement of materials.
  • Industrial Machinery: Rubber couplings are employed in various types of industrial machinery, such as compressors, generators, and gearboxes, to ensure smooth torque transmission and vibration isolation.
  • Marine: In marine applications, rubber couplings connect propulsion systems and power transmission components, contributing to the overall reliability and performance of vessels.
  • Renewable Energy: Wind turbines and solar tracking systems utilize rubber couplings to absorb dynamic loads and vibrations caused by changing wind conditions.

These examples highlight the versatility and importance of rubber couplings in maintaining efficient and reliable operation across a wide range of industries and applications.

rubber coupling

Factors to Consider When Selecting a Rubber Coupling

Choosing the right rubber coupling for a specific application involves considering various factors:

1. Torque Requirements: Evaluate the torque that needs to be transmitted between the input and output shafts. Select a coupling with a rubber element that can handle the required torque without exceeding its limits.

2. Misalignment Compensation: Determine the degree of misalignment (angular, axial, and radial) present in the system. Choose a rubber coupling with appropriate flexibility to accommodate the expected misalignment while maintaining efficient torque transmission.

3. Vibration Damping: Assess the level of vibrations and shocks in the application. Opt for a rubber coupling with effective vibration-damping properties to protect the machinery and enhance its reliability.

4. Service Environment: Consider the operating conditions, including temperature, humidity, exposure to chemicals, and potential contaminants. Select a rubber material that can withstand the environment without deteriorating.

5. Shaft Sizes: Ensure that the coupling’s bore sizes match the shaft diameters of the connected equipment. Proper shaft fitment is crucial for efficient torque transmission.

6. Maintenance Requirements: Evaluate the maintenance practices of the system. Some rubber couplings may require periodic inspection and replacement due to wear over time.

7. Cost and Budget: Factor in the budget constraints while choosing a suitable rubber coupling. Balancing performance and cost is essential for an optimal solution.

8. Application Type: Different industries and applications have unique requirements. Choose a coupling type (spider, jaw, tire, etc.) based on the specific needs of the application.

By carefully considering these factors, you can select a rubber coupling that provides efficient torque transmission, vibration isolation, and durability in your mechanical system.

China Professional Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange China Professional Rubber Bellows Pipe Joint Flexible Rubber Coupling with Flange
editor by CX 2023-10-10

China Hot selling Coupling Hydraulic Fluid Drive Roller Chain Spider Flexible Jaw Rubber Flexible Jaw Flange Motor Rubber Shaft Steel

Product Description

    Coupling Hydraulic Fluid Drive Roller Chain Spider Flexible Jaw Rubber Flexible Jaw Flange Motor Rubber Shaft Steel

Application of Coupling

A coupling is a mechanical device that connects 2 shafts together. It is used to transmit power from 1 shaft to another, while allowing for some degree of misalignment or end movement or both.

Couplings are used in a variety of applications, including:

  • Machinery: Couplings are used to connect the shafts of different machines, such as motors, pumps, and generators.
  • Vehicles: Couplings are used to connect the engine and transmission of a vehicle.
  • Power transmission: Couplings are used to transmit power from 1 source to another, such as from a generator to a distribution network.
  • Industrial applications: Couplings are used in various industrial applications, such as in food processing, chemical processing, and manufacturing.

There are many different types of couplings, each with its own advantages and disadvantages. Some of the most common types of couplings include:

  • Flanged couplings: Flanged couplings are the most common type of coupling. They are simple and easy to install, and they are relatively inexpensive. However, they can be bulky and they can add weight to the system.
  • Jaw couplings: Jaw couplings are a type of flexible coupling. They are able to accommodate misalignment between the shafts, and they are relatively compact. However, they can be more expensive than flanged couplings.
  • Hirth couplings: Hirth couplings are a type of rigid coupling. They are able to transmit high torque, and they are relatively durable. However, they can be more difficult to install than other types of couplings.
  • Universal joints: Universal joints are a type of flexible coupling. They are able to accommodate misalignment between the shafts, and they are relatively compact. However, they can be more expensive than other types of couplings.

The type of coupling best for a particular application will depend on several factors, including the amount of torque that needs to be transmitted, the amount of misalignment allowed, and the cost.

rubber coupling

Minimizing Resonance and Improving Machinery Performance with Rubber Couplings

A rubber coupling can play a significant role in minimizing resonance and enhancing the overall performance of machinery by effectively damping vibrations and reducing the risk of resonance-related issues. Resonance is a phenomenon where a mechanical system’s natural frequency matches the frequency of external vibrations, leading to amplified oscillations and potential damage.

The following ways illustrate how rubber couplings contribute to minimizing resonance and improving machinery performance:

  • Vibration Damping: Rubber couplings utilize the inherent damping properties of elastomers to absorb and dissipate vibrations generated during operation. These vibrations can include those caused by unbalanced loads, eccentricities, or other disturbances. By damping these vibrations, rubber couplings prevent them from building up and causing resonance.
  • Vibration Isolation: Rubber couplings act as isolators by decoupling the connected components from each other. This isolation prevents vibrations from being transmitted directly from one component to another, thereby reducing the potential for resonance to occur.
  • Misalignment Compensation: Rubber couplings can accommodate misalignments between shafts, which often contribute to excessive vibrations. By allowing a certain degree of misalignment, the coupling prevents additional forces that could trigger resonance.
  • Reduced Stiffness: The flexibility of the elastomer elements in rubber couplings can reduce the overall stiffness of the system. A lower stiffness helps avoid the amplification of resonance by allowing some deformation of the coupling under varying loads and conditions.
  • Dynamic Absorption: Rubber couplings are effective at absorbing dynamic loads, including sudden shocks or impacts. These dynamic events can excite resonance, and the coupling’s ability to absorb and disperse such forces helps prevent resonance-related issues.

By effectively dampening vibrations, isolating components, and accommodating misalignments, rubber couplings can help minimize the risk of resonance-related problems. Engineers and designers must carefully select the appropriate rubber coupling type, elastomer material, and design to match the specific machinery and operating conditions, thereby ensuring improved machinery performance and longevity.

rubber coupling

Handling Torque and Vibration Suppression in Rubber Couplings

Rubber couplings are designed to effectively handle both high levels of torque transmission and vibration suppression. The flexibility and damping properties of rubber make it well-suited for these purposes:

  • Torque Transmission: Rubber couplings can transmit torque between shafts while accommodating angular misalignment. The rubber element flexes and deforms as torque is applied, allowing the coupling to transmit power even in misaligned conditions.
  • Vibration Suppression: Rubber’s inherent damping characteristics help absorb and dissipate vibrations and shocks generated during the operation of machinery. This feature reduces the transfer of vibrations to connected components, minimizing wear and enhancing overall system performance.

Engineers select the appropriate rubber material and coupling design to ensure that the coupling can effectively handle the required torque levels and provide the desired vibration suppression. Rubber couplings find applications in various industries where torque transmission and vibration damping are critical for smooth and reliable machinery operation.

rubber coupling

Challenges of Misaligned Rubber Couplings and Their Resolution

Misaligned rubber couplings can lead to several challenges that impact the performance and reliability of machinery. These challenges include:

1. Reduced Efficiency: Misalignment can result in increased friction, causing energy loss and reduced efficiency in power transmission.

2. Increased Wear: Misaligned rubber couplings can cause uneven wear on the coupling’s rubber element and other connected components, leading to premature failure.

3. Vibrations and Noise: Misalignment can cause vibrations and noise, which not only affect the machinery’s operation but also contribute to discomfort for operators.

4. Overloading: Misalignment can lead to uneven loading on the coupling and connected components, potentially causing overloading and damage.

5. Premature Failure: Continuous operation with misaligned couplings can accelerate wear and fatigue, leading to premature failure of the coupling and other components.

To resolve these challenges, proper alignment practices are crucial:

1. Regular Maintenance: Perform routine inspections to identify misalignment and other issues early, allowing for timely adjustments.

2. Precise Installation: Ensure accurate alignment during the installation process to prevent initial misalignment.

3. Laser Alignment: Use laser alignment tools for accurate and reliable alignment between shafts.

4. Corrective Measures: If misalignment is detected, take corrective actions promptly to restore proper alignment.

5. Balancing Loads: Distribute loads evenly across the coupling and connected components to prevent overloading.

By addressing misalignment challenges proactively and adopting appropriate maintenance practices, the longevity and performance of rubber couplings can be significantly improved, minimizing downtime and maintenance costs in industrial applications.

China Hot selling Coupling Hydraulic Fluid Drive Roller Chain Spider Flexible Jaw Rubber Flexible Jaw Flange Motor Rubber Shaft Steel China Hot selling Coupling Hydraulic Fluid Drive Roller Chain Spider Flexible Jaw Rubber Flexible Jaw Flange Motor Rubber Shaft Steel
editor by CX 2023-10-08

China Best Sales Custom Flexible Flange Plastic Nylon and Rubber Protector Coupling / Connecting Pipe

Product Description

Custom Plastic Mould Component Nylon Shaft Coupling for Industrial Equipment

Products Type

We can custom shape,size,color material and quantity for plastic coupling as your requirment.

 

Products Specification
1. Various hardness for your choice.
2. Good abrasion, heat and oil resistance.
3. Good anti-aging performance and gas tightness.
4. Ease of bonding to other material.
5. Excellent oxygen and CHINAMFG resistance.
6. Non-flammable,self-extinguish.  

Material PA,PA6,PA66,PP,PE,LDPE,HDPE,UWHDPE,PTFE,POM,ABS,or Custom Compound
(Any custom compound plastic is available)
Size According to samples or drawings
Color Black,white,red,green,transparent or any color according to Pantone colors
Finish High Gloss,Fine Grain,Electroplating,Painting,Printing,Texture etc,or as request
Type Round,square,rectangular,or any nonstandard shape as request
Logo Debossed,embossed,printed logo or as request

Plastic Material Properties

Company Profile
 
Zhongde (ZheJiang ) Machinery Equipment Co.,LTD is a company integrated in design,OEM&ODM plastic&rubber&CNCparts production.We can provide the best products and service at a competitive price.

Main Products

We can provide OEM service,which means producing base on your drawings or samples,also we can design according to its application or customer`s requirments.

Order Operation Flow

We execute each step according to the operation process flow, strictly, seriously and meet the requirements of customers with good quality on time.

For Fast Quotation,Please Inform Below Details
1. Production type
2. Material specification (or let us know the using environmental)
3. Size details? (or provide drawings or samples for refference)
4. Quantity request
5. Prefer color

rubber coupling

Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

  • Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
  • Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

rubber coupling

Industry Standards and Guidelines for Rubber Couplings

There are no specific industry standards or guidelines that exclusively govern the design and application of rubber couplings. However, various general standards and engineering practices apply to flexible couplings, including rubber couplings:

  • ISO 14691: This standard provides guidelines for the installation, use, and maintenance of industrial flexible couplings, which include rubber couplings.
  • AGMA 9005: The American Gear Manufacturers Association (AGMA) standard provides information on selecting lubricants and lubrication methods for flexible couplings, ensuring proper performance and longevity.
  • API 671: This API standard specifies the requirements for special-purpose couplings used in petroleum, chemical, and gas industry services, which can include rubber couplings for specific applications.
  • Manufacturer Recommendations: Many rubber coupling manufacturers provide guidelines, specifications, and installation instructions for their products, helping users select the right coupling and use it correctly.

Since rubber couplings fall under the category of flexible couplings, engineers and designers can follow these broader standards and best practices while considering the specific characteristics and performance requirements of rubber couplings for their applications.

rubber coupling

Main Advantages of Using Rubber Couplings in Industrial Applications

Rubber couplings offer several key advantages when used in industrial applications. These advantages make them a popular choice for various industries and mechanical systems:

  • Misalignment Tolerance: Rubber couplings can accommodate angular, parallel, and axial misalignments between connected shafts, reducing the need for precise alignment during installation and operation.
  • Vibration Damping: The rubber elements of these couplings absorb and dampen vibrations, minimizing the transmission of vibrations and shocks to other components. This helps prevent damage, wear, and noise generation.
  • Shock Absorption: In systems where sudden shocks or impacts occur, rubber couplings absorb and cushion the impact, protecting connected components from damage.
  • Noise Reduction: The ability to dampen vibrations also contributes to noise reduction, creating quieter operation environments for machinery and equipment.
  • Equipment Protection: Rubber couplings protect sensitive equipment from excessive loads, vibrations, and shocks, enhancing the longevity and reliability of the system.
  • Cost-Effectiveness: Compared to some other coupling types, rubber couplings are generally cost-effective to manufacture, purchase, and maintain.
  • Easy Installation: The flexibility and design of rubber couplings make them relatively easy to install without the need for specialized tools or complex procedures.
  • Minimal Maintenance: Rubber couplings require minimal maintenance and lubrication, reducing downtime and maintenance costs.
  • Wide Range of Applications: Rubber couplings are versatile and find applications in various industries, including automotive, power generation, pumps, conveyors, and more.

In summary, the main advantages of using rubber couplings in industrial applications include their ability to tolerate misalignment, dampen vibrations, absorb shocks, reduce noise, protect equipment, cost-effectiveness, easy installation, low maintenance requirements, and suitability for a wide range of applications.

China Best Sales Custom Flexible Flange Plastic Nylon and Rubber Protector Coupling / Connecting Pipe China Best Sales Custom Flexible Flange Plastic Nylon and Rubber Protector Coupling / Connecting Pipe
editor by CX 2023-10-07

China best CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling

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

 

rubber coupling

Durometer Hardness in Rubber Coupling Materials

Durometer hardness is a measure of the material’s resistance to indentation or penetration by a specified indenter. In rubber couplings, durometer hardness is a critical characteristic that influences their performance. It is typically measured using a durometer instrument.

The durometer hardness scale commonly used for rubber materials is the Shore durometer scale, indicated by a letter followed by a numerical value (e.g., Shore A, Shore D). Lower durometer values indicate softer and more flexible rubber, while higher values indicate harder and less flexible rubber.

In relation to rubber couplings:

  • Higher Durometer (Harder Rubber): Couplings made from harder rubber materials have better torque transmission capabilities and higher load-bearing capacity. However, they may offer less vibration isolation and misalignment compensation.
  • Lower Durometer (Softer Rubber): Couplings made from softer rubber materials provide greater flexibility, vibration damping, and misalignment compensation. They are suitable for applications where vibration reduction is crucial.

The choice of durometer hardness depends on the specific requirements of the application, including torque levels, vibration, misalignment, and desired performance characteristics.

rubber coupling

Common Rubber Materials Used in Manufacturing Rubber Couplings

Various rubber materials are used in the manufacturing of rubber couplings, each chosen based on its specific properties and the intended application:

  • Neoprene: Known for its oil and chemical resistance, neoprene rubber is used in couplings that require durability and resistance to harsh environments.
  • Nitrile: Nitrile rubber offers excellent oil and fuel resistance, making it suitable for applications in machinery that involve contact with lubricants.
  • Natural Rubber: Natural rubber provides good elasticity and flexibility, making it suitable for couplings requiring high levels of shock and vibration absorption.
  • EPDM: Ethylene Propylene Diene Monomer (EPDM) rubber offers good resistance to weather, ozone, and aging, making it suitable for outdoor or high-temperature applications.
  • Polyurethane: Polyurethane rubber offers high abrasion resistance and can handle higher load capacities, making it suitable for heavy-duty applications.

The choice of rubber material depends on factors such as the operating environment, chemical exposure, temperature range, flexibility requirements, and load conditions. Engineers select the appropriate rubber material to ensure the coupling’s performance and longevity in specific applications.

rubber coupling

Transmitting Torque and Damping Vibrations with a Rubber Coupling

A rubber coupling utilizes its flexible rubber element to achieve both torque transmission and vibration damping:

1. Torque Transmission: The rubber element connects two hubs, which are attached to the input and output shafts. As the input shaft rotates, it causes the rubber element to deform due to the applied torque. This deformation creates a shearing action within the rubber material, transmitting torque from the input to the output shaft.

2. Vibration Damping: The flexible rubber element of the coupling acts as a vibration isolator. When the coupling experiences external vibrations or shocks, the rubber absorbs the energy and dampens the vibrations before they reach the output shaft. The rubber’s elasticity and damping properties help mitigate vibrations and reduce the impact on the connected machinery, enhancing overall system performance and longevity.

This combination of torque transmission and vibration damping makes rubber couplings suitable for applications where misalignment compensation, shock absorption, and dampening of vibrations are essential, such as in pumps, compressors, HVAC systems, and various industrial machinery.

China best CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling China best CZPT XL Types High-Pressure Rubber Flexible Spider Jaw Coupling
editor by CX 2023-09-27

China supplier Rge14-90 Flexible Rubber Shaft Jaw Steel Coupling for Auto Parts

Product Description

Quick Details

 

Applicable Industries:

Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Construction works , Energy & Mining, Other

 Customized support:

OEM, ODM
Type:Jaw Coupling Surface treatment: BLACK
Place of Origin:ZheJiang , China Brand Name:REACHJY, REACHJY
Application:transmission  
Certification:Reach  
   

rubber coupling

Diagnosing and Troubleshooting Rubber Coupling Issues

Diagnosing and troubleshooting problems with rubber couplings in machinery systems involves a systematic approach:

  1. Visual Inspection: Check for signs of wear, cracking, or deformation in the rubber elements.
  2. Vibration Analysis: Monitor vibration levels using sensors to identify excessive vibrations or irregular patterns.
  3. Noise Assessment: Listen for unusual noises during operation, which could indicate misalignment or worn components.
  4. Temperature Check: Monitor the operating temperature of the coupling, as overheating might indicate issues.
  5. Alignment Check: Ensure proper alignment between connected shafts to prevent excessive stress on the coupling.
  6. Torque Measurement: Measure the transmitted torque to identify any discrepancies from the expected values.
  7. Dynamic Testing: Conduct dynamic tests with load variations to identify performance issues.
  8. Comparative Analysis: Compare coupling behavior to baseline performance data.

If any issues are identified, they should be promptly addressed through proper maintenance, realignment, or replacement of damaged components.

rubber coupling

Common Rubber Materials Used in Manufacturing Rubber Couplings

Various rubber materials are used in the manufacturing of rubber couplings, each chosen based on its specific properties and the intended application:

  • Neoprene: Known for its oil and chemical resistance, neoprene rubber is used in couplings that require durability and resistance to harsh environments.
  • Nitrile: Nitrile rubber offers excellent oil and fuel resistance, making it suitable for applications in machinery that involve contact with lubricants.
  • Natural Rubber: Natural rubber provides good elasticity and flexibility, making it suitable for couplings requiring high levels of shock and vibration absorption.
  • EPDM: Ethylene Propylene Diene Monomer (EPDM) rubber offers good resistance to weather, ozone, and aging, making it suitable for outdoor or high-temperature applications.
  • Polyurethane: Polyurethane rubber offers high abrasion resistance and can handle higher load capacities, making it suitable for heavy-duty applications.

The choice of rubber material depends on factors such as the operating environment, chemical exposure, temperature range, flexibility requirements, and load conditions. Engineers select the appropriate rubber material to ensure the coupling’s performance and longevity in specific applications.

rubber coupling

Main Advantages of Using Rubber Couplings in Industrial Applications

Rubber couplings offer several key advantages when used in industrial applications. These advantages make them a popular choice for various industries and mechanical systems:

  • Misalignment Tolerance: Rubber couplings can accommodate angular, parallel, and axial misalignments between connected shafts, reducing the need for precise alignment during installation and operation.
  • Vibration Damping: The rubber elements of these couplings absorb and dampen vibrations, minimizing the transmission of vibrations and shocks to other components. This helps prevent damage, wear, and noise generation.
  • Shock Absorption: In systems where sudden shocks or impacts occur, rubber couplings absorb and cushion the impact, protecting connected components from damage.
  • Noise Reduction: The ability to dampen vibrations also contributes to noise reduction, creating quieter operation environments for machinery and equipment.
  • Equipment Protection: Rubber couplings protect sensitive equipment from excessive loads, vibrations, and shocks, enhancing the longevity and reliability of the system.
  • Cost-Effectiveness: Compared to some other coupling types, rubber couplings are generally cost-effective to manufacture, purchase, and maintain.
  • Easy Installation: The flexibility and design of rubber couplings make them relatively easy to install without the need for specialized tools or complex procedures.
  • Minimal Maintenance: Rubber couplings require minimal maintenance and lubrication, reducing downtime and maintenance costs.
  • Wide Range of Applications: Rubber couplings are versatile and find applications in various industries, including automotive, power generation, pumps, conveyors, and more.

In summary, the main advantages of using rubber couplings in industrial applications include their ability to tolerate misalignment, dampen vibrations, absorb shocks, reduce noise, protect equipment, cost-effectiveness, easy installation, low maintenance requirements, and suitability for a wide range of applications.

China supplier Rge14-90 Flexible Rubber Shaft Jaw Steel Coupling for Auto Parts China supplier Rge14-90 Flexible Rubber Shaft Jaw Steel Coupling for Auto Parts
editor by CX 2023-09-27

China Custom Ductile Iron Pipe Fittings Pn16 Epoxy Coating Di Rubber Flexible Joint Flanged Adaptor and Coupling

Product Description

SYI Ductile Iron Compact Dismantling Joints PN10 PN16 PN25 PN40

Description

SYI COMPACT Dismantling Joints, developed by experienced engineers in CHINAMFG in 2571, the newest compact design in the market, more lighter, more easier, and more lower cost.

Material:

Body:Ductile Iron grade 500-7/450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536

Gasket:Rubber E.P.D.M./NBR/SBR in accordance with EN 681.1

Gland:Ductile Iron grade 500-7/450-10 in accordance with ISO 1083 or 70-50-05/65-45-12 with ASTM A536

Bolts And Nuts:Carbon steel grade 6.8 with galvanization

Flange:PN10 and PN16 drilling in accordance with ISO 7005-2/EN 1092-2

Working Pressure: 16 Bar or 250/350PSI

Fluid Temperature

0°C – 50°C, excluding frost

Coating

External coatings

Internal coatings

liquid epoxy resin painting
epoxy applied by FBE
according to customers’ requirements

liquid epoxy resin painting
epoxy applied by FBE
according to customers’ requirements

Reference Rules:Designed and tested in accordance with EN14525, ANSI/AWWA C219 and EN545

Accessories:gasket, stub(screw) bolts, washer, nuts etc. The accessories for Dismantling Joints are usually supplied by assembled on the body.

 

Feature:
1.For the both ends, adopt Flange connection mode.
2.The overall length of the connection can be adjusted, there is a certain amount of expansion. Generally, the design maximum expansion is 50mm.
3.They could replace the double flange straight pipe during repairing, repairing the original damaged pipe fittings or connecting new pipes, and adjustable length characteristics make them more convenient than flange pipe in the application of construction and installation. They are usually connected adjacent to the valve.
4.The bolt can be directly used for connecting the flange in the pipeline.
5.At the same time, we can also supply half set of bolts, that is, bolts with 50% bolt holes.
It belongs to our new design, which reduce the weight and cost, are more competitive.
Package

Packing: Different package CHINAMFG your request,like wood cases&pallets,ply-wood crates&pallets,steel crates&pallets and etc.

Quality ControlSYI Pipeline regards quality as an essential and integral part of our business success.

Until now, we are ISO9001:2015 TUV, BSI Kitemarked, SGS, BV, FM certified, and UL, WRAS listed. We are the approved supplier to many CHINAMFG known countries and authorities.

Manufacturing “SYI” Brand products has evolved as a mark of quality!

Company


Welcome to send us an inquiry for more details and price!!!

rubber coupling

Maintaining and Preserving Rubber Coupling Performance

To ensure the longevity and optimal performance of rubber couplings, the following best practices should be observed:

  • Regular Inspections: Perform visual inspections for signs of wear, cracks, or damage.
  • Lubrication: Apply appropriate lubricants to minimize friction and extend rubber life.
  • Alignment: Maintain proper alignment between connected shafts to prevent undue stress on the coupling.
  • Temperature Control: Monitor operating temperatures to prevent overheating that can accelerate rubber degradation.
  • Load Monitoring: Avoid overloading the coupling beyond its rated capacity.
  • Vibration Analysis: Monitor vibration levels and address excessive vibrations promptly.
  • Regular Maintenance: Follow manufacturer’s recommendations for maintenance schedules.
  • Replacement: Replace worn or damaged rubber elements as needed.

By adhering to these practices, the performance and service life of rubber couplings can be effectively preserved.

rubber coupling

Handling Torque and Vibration Suppression in Rubber Couplings

Rubber couplings are designed to effectively handle both high levels of torque transmission and vibration suppression. The flexibility and damping properties of rubber make it well-suited for these purposes:

  • Torque Transmission: Rubber couplings can transmit torque between shafts while accommodating angular misalignment. The rubber element flexes and deforms as torque is applied, allowing the coupling to transmit power even in misaligned conditions.
  • Vibration Suppression: Rubber’s inherent damping characteristics help absorb and dissipate vibrations and shocks generated during the operation of machinery. This feature reduces the transfer of vibrations to connected components, minimizing wear and enhancing overall system performance.

Engineers select the appropriate rubber material and coupling design to ensure that the coupling can effectively handle the required torque levels and provide the desired vibration suppression. Rubber couplings find applications in various industries where torque transmission and vibration damping are critical for smooth and reliable machinery operation.

rubber coupling

Challenges of Misaligned Rubber Couplings and Their Resolution

Misaligned rubber couplings can lead to several challenges that impact the performance and reliability of machinery. These challenges include:

1. Reduced Efficiency: Misalignment can result in increased friction, causing energy loss and reduced efficiency in power transmission.

2. Increased Wear: Misaligned rubber couplings can cause uneven wear on the coupling’s rubber element and other connected components, leading to premature failure.

3. Vibrations and Noise: Misalignment can cause vibrations and noise, which not only affect the machinery’s operation but also contribute to discomfort for operators.

4. Overloading: Misalignment can lead to uneven loading on the coupling and connected components, potentially causing overloading and damage.

5. Premature Failure: Continuous operation with misaligned couplings can accelerate wear and fatigue, leading to premature failure of the coupling and other components.

To resolve these challenges, proper alignment practices are crucial:

1. Regular Maintenance: Perform routine inspections to identify misalignment and other issues early, allowing for timely adjustments.

2. Precise Installation: Ensure accurate alignment during the installation process to prevent initial misalignment.

3. Laser Alignment: Use laser alignment tools for accurate and reliable alignment between shafts.

4. Corrective Measures: If misalignment is detected, take corrective actions promptly to restore proper alignment.

5. Balancing Loads: Distribute loads evenly across the coupling and connected components to prevent overloading.

By addressing misalignment challenges proactively and adopting appropriate maintenance practices, the longevity and performance of rubber couplings can be significantly improved, minimizing downtime and maintenance costs in industrial applications.

China Custom Ductile Iron Pipe Fittings Pn16 Epoxy Coating Di Rubber Flexible Joint Flanged Adaptor and Coupling China Custom Ductile Iron Pipe Fittings Pn16 Epoxy Coating Di Rubber Flexible Joint Flanged Adaptor and Coupling
editor by CX 2023-09-21