Product Description

Multi-Function Gear Ring Single-Section Flexible Stainless Steel Pipe Coupling

1. Briefs : 

*  Mainly used for varied pipe connection
*  Suit for Water, Sewage, Gas, Oil Service Pipeline .

2. Features :

*   used for both pipe connection and leaking pipe repair
*   allow angular deflection and provide restraint 
*   anticorrosive
*   flexible pipe connection
*   Instant and convenience 
*   easy installation and dismantle

3. Dimension Sheet : 

S/N O. D Range Ship Industry Length (mm)
  mm PN (bar) WP (bar) Normal Extended
1 21-23 16 32 57  
2 26-28 16 32 57  
3 33-35 16 32 57  
4 42-44 16 32 57  
5 47-49 16 32 57 100
6 56-58 16 32 57 100
7 59-62 16 32 80 139
8 62-64 16 32 80 139
9 75-78 14 28 80 139
10 79-81 14 28 80 203
11 88-92 14 28 107 203
12 106-110 14 28 107 203
13 112-116 14 28 107 203
14 116-119 14 28 107 203
15 123-126 14 28 107 203
16 131-134 14 28 107 203
17 137-143 14 28 116 203
18 157-161 12 24 116 203
19 163-166 12 24 116 203
20 166-170 12 24 116 203
21 168-172 12 24 116 203
22 198-201 8 16 155 255
23 217-221 8 16 155 255
24 250-254 8 16 155 255
25 271-275 8 16 155 255
26 313-317 7 14 155 255
27 323-327 7 14 155 255
28 354-358 7 14 155 255
29 375-379 7 14 155 255

Note: we accept your specific dimensions which are not included in the above list .

4. Rubber Sealing Sleeve Material 

Rubber Sealing Sleeve Material Chart 
Material  Suit for
EPDM  Temperature Range : -20ºC to +120ºC                                                Suit for water, waster water, air, CHINAMFG and chemicals fluids
NBR  Temperature Range : -20ºC to +120ºC                                                Suit for gas,oil, crude oil and other hydrocarbon fluids
MVQ(Silicon Rubber) Temperatuer Range: -75ºC to +200ºC                                          sunlight resistant, heat resistant, high temperature isolation
VITON( Fluoro Rubber) Temperature Range: -95ºC to +300ºC                                                heat resistant, chemical attack resistant

Note: you should choose the kind of rubber material based on the type of fluids of your pipeline .
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flexible gear coupling

Materials Used in Manufacturing Flexible Gear Couplings and Their Impact on Performance

Flexible gear couplings are designed to transmit torque while accommodating misalignments and reducing vibrations. The choice of materials for manufacturing these couplings plays a crucial role in their overall performance and suitability for specific applications. Some common materials used in flexible gear couplings include:

  • Steel: Steel is a popular material for flexible gear couplings due to its high strength and durability. It can handle substantial torque loads and provides good resistance to wear and fatigue. Steel couplings are commonly used in heavy-duty applications, such as steel mills, mining, and power generation.
  • Stainless Steel: Stainless steel is used when corrosion resistance is required, making it suitable for applications in corrosive environments like the marine, chemical, and petrochemical industries.
  • Alloy Steel: Alloy steel is used to improve specific properties, such as hardness and heat resistance. It is often employed in high-temperature applications found in steel processing and power generation.
  • Cast Iron: Cast iron is known for its excellent wear resistance and damping capabilities. It is used in applications where shock absorption and vibration reduction are critical, such as pumps and compressors.
  • Aluminum: Aluminum is lightweight and offers good corrosion resistance, making it suitable for applications where weight reduction is important, such as aerospace and certain industrial machinery.
  • Bronze: Bronze is used for its self-lubricating properties and resistance to wear. It is often found in couplings used in low-speed applications, such as conveyor systems.
  • Nylon and Plastics: Nylon and other plastics are used in some couplings where electrical isolation and lightweight properties are essential, such as in medical equipment and certain automation systems.

The selection of materials depends on the specific requirements of the application, including torque, speed, temperature, environmental conditions, and the presence of corrosive substances. Proper material selection ensures that the flexible gear coupling can operate efficiently and reliably, providing optimal performance and minimizing maintenance needs.

flexible gear coupling

Design Considerations for Selecting a Flexible Gear Coupling

When selecting a flexible gear coupling for a specific application, several design considerations are crucial to ensure optimal performance and reliability:

  • Torque Capacity: Determine the maximum torque requirement of the application and choose a coupling with sufficient torque capacity to handle the transmitted loads without exceeding its limits.
  • Speed: Consider the operating speed of the machinery and select a coupling that can handle the rotational speed without generating excessive heat or vibrations.
  • Misalignment Tolerance: Assess the expected misalignment between the shafts in the system and choose a coupling that can accommodate both angular and parallel misalignments within acceptable limits.
  • Service Environment: Evaluate the working conditions, including temperature, humidity, and the presence of corrosive agents, and select a coupling made from materials suitable for the specific environment.
  • Space Limitations: Take into account the available space for the coupling installation and choose a compact design that fits within the available constraints.
  • Alignment Maintenance: Consider the ease of alignment and maintenance requirements of the selected coupling. Some couplings may require more frequent maintenance than others.
  • Backlash: Evaluate the application’s tolerance for backlash (angular play) in the coupling and select a design that meets the required precision.
  • Torsional Stiffness: Determine the need for torsional stiffness in the system to avoid torsional vibrations and ensure accurate torque transmission.
  • Resonance Avoidance: Identify potential resonance frequencies in the system and choose a coupling that helps avoid resonance, preventing amplified vibrations.
  • Cost: Consider the budget constraints and compare the cost-effectiveness of different coupling options while ensuring the selected coupling meets all the necessary requirements.

By carefully considering these design factors, engineers and designers can choose the most suitable flexible gear coupling for their specific application, ensuring smooth operation, reduced maintenance, and extended equipment lifespan.

flexible gear coupling

Different Types of Flexible Gear Couplings and Their Applications

Flexible gear couplings are available in various designs, each suited for specific applications based on their features and capabilities. Some common types of flexible gear couplings and their applications include:

  • Full Gear Couplings: These couplings consist of two hubs with external gear teeth that mesh with an internal gear sleeve. They offer high torque capacity and are commonly used in heavy machinery, such as steel rolling mills, cranes, and conveyors.
  • Half Gear Couplings: Half gear couplings have one flexible half with internal gear teeth and one rigid half with external gear teeth. They are ideal for applications requiring torsional rigidity and misalignment compensation, such as pumps and compressors.
  • Nylon Sleeve Gear Couplings: These couplings have a nylon sleeve inserted between the gear teeth of the hubs and the internal sleeve. They are known for their vibration damping properties and are used in applications where noise reduction is essential, such as printing presses and textile machinery.
  • Chain Gear Couplings: Chain gear couplings use chains to transmit torque between the hubs. They are well-suited for high-speed and high-torque applications and can accommodate significant misalignment. These couplings find applications in turbines, generators, and large fans.
  • U-Joint Gear Couplings: These couplings have a universal joint-like mechanism that compensates for angular misalignment. They are commonly used in automotive drivetrains, agricultural equipment, and marine propulsion systems.
  • Spacer Gear Couplings: Spacer gear couplings have two hubs separated by a spacer that accommodates large misalignments. They are commonly used in paper mills, mining equipment, and other heavy machinery.

When selecting a flexible gear coupling, it is essential to consider the specific requirements of the application, including torque, speed, misalignment, and environmental conditions, to choose the most suitable type for optimal performance and longevity.

China supplier Multi-Function Gear Ring Single-Section Flexible Stainless Steel Pipe Coupling  China supplier Multi-Function Gear Ring Single-Section Flexible Stainless Steel Pipe Coupling
editor by CX 2023-12-25